UnitedHealth Group explained

UnitedHealth Group Incorporated
Logo Upright:1.2
Type:Public
Founder:Richard T. Burke
Area Served:Worldwide
Operating Income: (2024)
Net Income: (2024)
Assets: (2024)
Equity: (2024)
Num Employees: (2025)
Foundation:
  • (as CharterMed)
  • (as UnitedHealthCare)
Subsid:~2700 including
Location:Eden Prairie, Minnesota, United States
Footnotes:[1] [2] [3]

UnitedHealth Group Incorporated is an American multinational for-profit company based in Eden Prairie, Minnesota specializing in health insurance and health care services. Selling insurance products under UnitedHealthcare, and health care services under the Optum brand, it is the world's seventh-largest company by revenue and the largest health care company by revenue. The company is ranked seventh on the 2025 Fortune Global 500.[4]

UnitedHealth Group had a market capitalization of more than $300 billion as of year-end 2025.[5] The company is the largest health insurer in the United States, insuring over 50 million people,[6] [7] and operates globally.[8] [9]

UnitedHealth Group has faced numerous[10] [11] [12] investigations, lawsuits, and fines, including SEC enforcement for stock option backdating, Medicare over-billing, unfair claims practices, mental health treatment denials, and anticompetitive behavior.

History

1970s–1990s

UnitedHealth Group originated in late 1974, when Minnesota-based Charter Med Incorporated was founded by Richard Taylor Burke. It originally processed claims for doctors at the Hennepin County Medical Society.[13] UnitedHealthcare Corporation was founded in 1977 to purchase Charter Med and create a network-based health plan for seniors.[14] It became a publicly traded company in 1984 and changed its name to UnitedHealth Group in 1998.[15]

In 1988, UnitedHealthcare started its first pharmacy benefit management, through its Diversified Pharmaceutical Services subsidiary. It managed pharmacy benefits delivered both through retail pharmacies and mail. The subsidiary was sold to SmithKline Beecham in 1994 for $2.3 billion.[16]

In 1994, UnitedHealthcare acquired Ramsey-HMO, a Florida insurer.[17] In 1995, the company acquired The MetraHealth Companies Inc. for $1.65 billion. MetraHealth was a privately held company formed by combining the group healthcare operations of The Travelers Companies and MetLife. In 1996, UnitedHealthcare acquired HealthWise of America, which operated HMOs in Arkansas, Maryland, Kentucky and Tennessee.[18]

In 1998, the company was reorganized as the holding company for hitherto independent companies UnitedHealthcare, Ovations, Uniprise, Specialized Care Services, and Ingenix and rebranded as "UnitedHealth Group". Also in 1998, UnitedHealth Group acquired HealthPartners of Arizona, operator of Arizona's largest AHCCCS provider.[19]

2000s

In 2001, EverCare, a UnitedHealth Group subsidiary, merged with LifeMark Health Plans[20] In 2002, UnitedHealth Group acquired GeoAccess and Medicaid insurance company AmeriChoice.[21] In 2003, UnitedHealth Group acquired Mid Atlantic Medical Services, an insurer serving Maryland, Washington D.C., Virginia, Delaware and West Virginia.[22] Also in 2003, UnitedHealth Group acquired Golden Rule Financial, a provider of health savings accounts.[23] On July 21, 2003, Exante Bank started operating in Salt Lake City, Utah, as a Utah state-chartered industrial loan corporation. It changed its name to OptumHealth Bank in 2008[24] and to Optum Bank in 2012.

In April 2004, UnitedHealth Group acquired Touchpoint Health Plan, a Wisconsin health plan.[25] In July 2004, the company acquired Oxford Health Plans.[26]

In December 2005, the company acquired PacifiCare Health Systems.[27] It agreed to divest parts of PacifiCare's commercial health insurance business in Tucson, Arizona and Boulder, Colorado to satisfy antitrust regulator concerns, and also agreed to end its network access agreement with Blue Shield of California. The Tucson business was sold to Cigna.[28] The company acquired Prescription Solutions, another pharmacy benefits manager, as part of its acquisition of PacifiCare Health Systems. This business was later rebranded OptumRx.

In February 2006, the company acquired John Deere Health Care.[29] [30] [31] The same year, William W. McGuire stepped down as chairman and director due to his involvement in the employee stock options scandal.[32] He was replaced by CEO Stephen Hemsley who had served as president and COO and a member of the board of directors. McGuire's exit compensation from UnitedHealth was anticipated to be $1.1 billion,[33] but he only received $618 million after returning $420 million in stock options.[34]

In February 2008, the company acquired Sierra Health Services for $2.6 billion.[35] As part of the transaction, to obtain regulatory approval, 25,000 customers were sold to Humana.[36] In July 2009, UnitedHealth Group agreed to acquire Health Net's Northeast licensed subsidiaries for up to $570 million in payments spread out over two years.[37]

2010s

Through 2010 and into 2011, senior executives of the company met monthly with executives of other health insurers to limit the effect of the health care reform law.[38] In July 2010, Ingenix acquired Picis Clinical Solutions, Inc., a health information provider for the high-acuity areas of hospitals.[39] [40] In 2011, Logistics Health, Inc. of La Crosse, Wisconsin, was acquired by OptumHealth.[41] In September 2014, the office buildings where LHI is based were sold to UnitedHealth Group for $45 million.[42] [43] In February 2012, the company acquired XLHealth, a sponsor of Medicare Advantage health plans with a primary focus on medicare recipients with special needs such as those with chronic illness and those eligible for Medicaid ("dual eligibles").[44] [45] In October 2012, UnitedHealth Group and Amil Participações, one of the biggest Brazilian health insurance companies, completed the first phase of their merger.[46] [47] [48]

In February 2014, Optum secured a majority stake in the Washington, D.C.–based startup Audax Health.[49] Audax's CEO, Grant Verstandig, continued running the firm alongside COO David Ko. In October 2014, Optum Health acquired the health services unit of Alere for $600 million cash.[50]

In March 2015, it was announced that CatamaranRx would be acquired by OptumRx.[51] In April 2016, the company announced it was pulling out of all but a "handful" of state healthcare exchanges provided under Affordable Care Act and will continue to sell only in three states in 2017.[52] [53]

In 2017, UnitedHealth's Optum unit acquired Rally Health,[54] a company started by Audax Health's executives.[55] Prior to acquisition, in 2015, UnitedHealth supported Rally Health as a majority investor,[56] and through enrolling more than 5 million UnitedHealth policy holders in Rally Health's flagship product, Rally.[55] [57] [58] The close relations between UnitedHealth, Audax Health and Rally Health follows a close personal relationship between Grant Verstandig (Audax and Rally) and UnitedHealth's President and CFO at the time, David Wichmann.[59]

In June 2019, UnitedHealth's Optum division acquired DaVita Medical Group from DaVita, Inc. for $4.3 billion.[60] [61] [62] That year, the company also agreed to acquire Equian for $3.2 billion.[63] [64] [65] On June 19, 2019, UnitedHealth acquired the online patient community platform PatientsLikeMe for an undisclosed amount and it will be incorporated into UnitedHealth Group's research division.[66]

In November 2019, Andrew Witty was named president of UnitedHealth Group, in addition to his role as chief executive of the company's Optum division.[67]

2020s–present

UnitedHealth announced in March 2022 that it would acquire LHC Group for $5.4 billion. The deal will expand its home health capabilities by combining LHC's services with UnitedHealth's Optum unit.[68]

In 2022, UnitedHealth Group said there would be no out-of-pocket costs for albuterol, epinephrine, glucagon, insulin, and naloxone for fully insured members starting in 2023. The discounts were guaranteed for less than a quarter of UnitedHealthcare's membership and did not extend to those enrolled in UHC's Medicare Advantage and Medicaid plans.[69]

In 2023, UnitedHealthGroup announced it would move its headquarters from Minnetonka to Eden Prairie, Minnesota.[70]

In February 2024, UnitedHealth Group completed the sale of its operations in Brazil.[71]

In February 2022, UnitedHealth announced the acquisition of Change Healthcare, the largest health payments platform in the US, which the US Justice Department tried to block on antitrust grounds; the sale went through by September.[72] 18 months later, in February 2024, the subsidiary was brought completely down by the 2024 Change Healthcare ransomware attack, and the Justice Department announced that it was opening a new antitrust and Medicare overcharging probe.[72] Despite making a ransomware payment, services remained down or incomplete for months. The CEO, Andrew Witty, was called before the US House and US Senate to testify about the cyberattack and DoJ concerns.[73] In late April 2024, the Senate held a hearing concerning the cyberattack and UnitedHealth's response. Andrew Witty went before the Senate stating that there needed to be a strong digital security system in place along with an adequate backup plan. UnitedHealth revealed the hackers did gain access to patient information, but the Senate was informed the company is not yet aware of the extent of the data breach.[74]

On December 4, 2024, Brian Thompson, the CEO of UnitedHealth Group's insurance division, was killed in a shooting in New York City.[75] [76] The shooting occurred outside the New York Hilton Midtown, where UnitedHealth Group was hosting an investor event.[75] Reactions to the shooting on social media were defined by resentment and criticism of UnitedHealthcare, the American health insurance system, and widespread disdain towards Thompson.[77] [78] [79] [80] Police later arrested a suspect, Luigi Mangione, and charged him with murder.[81] Tim Noel joined UnitedHealthCare in 2007[82] [83] [84] and succeeded Brian Thompson as the CEO. Prior to becoming CEO, Noel was in charge of UnitedHealthCare's Medicare Advantage plans.[82] [85] [86]

In November 2025 Scott Gottlieb, the former commissioner of the Food and Drug Administration, joined UnitedHealth Group's board of directors.[87]

Organizational structure

UnitedHealth Group has about 2700 subsidiaries and affiliates[88] worldwide,[89] [90] [91] the highest profile being Optum and UnitedHealthcare.

Optum

See main article: Optum.

Formed in 2011, Optum says that it provides "data and analytics, pharmacy care services, population health, healthcare delivery, and healthcare operations".[92]

It is organized into three businesses:

UnitedHealthcare

UnitedHealthcare (UHC) is an insurance and managed care company with four main divisions:

Finance

For the fiscal year 2022, UnitedHealth Group reported earnings of US$20.64 billion, with an annual revenue of US$324.16 billion.[97] UnitedHealth Group's 2023 revenue grew by $47.5 billion, or 14.6%, on annualized revenue of $371.6 billion. Operating income for 2023 was $32.4 billion (up 13.8%). Cash flows from operations were $29.1 billion.[98] UnitedHealth Group’s 2024 revenues grew $28.7 billion or 8% year-over-year to $400.3 billion. Earnings from operations of $32.3 billion compared to $32.4 billion in 2023. Cash flows from operations were $24.2 billion.[99]

YearRevenue
in million US$		Net income
in million US$		Total assets
in million US$		Price per share
in US$		Employees
2005[100] 46,4253,08341,28845.2455,000
2006[101] 71,5424,15948,32044.8358,000
2007[102] 75,4314,65450,89945.9167,000
2008[103] 81,1862,97755,81528.4075,000
2009[104] 87,1383,82259,04523.1080,000
2010[105] 94,1554,63463,06329.2087,000
2011[106] 101,8625,14267,88941.6899,000
2012[107] 110,6185,52680,88550.04133,000
2013[108] 122,4895,62581,88260.29156,000
2014[109] 130,4745,61986,38278.28170,000
2015[110] 157,1075,813111,254111.06200,000
2016[111] 184,8407,017122,810131.31230,000
2017[112] 201,15910,558139,058183.48260,000
2018[113] 226,24711,986152,221245.88300,000
2019[114] 242,15513,839173,889249.59325,000
2020257,14115,403197,289301.28330,000
2021287,59717,285212,206403.71350,000
2022324,16220,639245,705530.18400,000
2023371,62223,144273,720526.47440,000
2024400,27815,242298,278505.86400,000

Lobbying and political activity

In 2009, according to OpenSecrets, people affiliated with UnitedHealth Group gave $4.77million to political candidates and groups.[115] The Affordable Care Act was being discussed in Congress at the time and was subsequently passed in the first quarter of 2010. In 2010 UnitedHealth Group hired nine different lobbying firms to work on its behalf.[116] In addition, its corporate political action committee (PAC), called United for Health, spent an additional $1million on lobbying activities.[117] UnitedHealth Group subsequently spent $4.11million to $4.75million from 2011 to 2021.

The Lewin Group

The Lewin Group is a policy research and consulting firm that provides an economic analysis of health care and human services issues and policies. The organization has existed for about 40 years and has maintained a nonpartisan reputation through the many ownership changes that have occurred over that time. The Lewin Group was purchased in 2007 by Ingenix, a subsidiary of UnitedHealth Group, but alleges editorial and analytical "independence" from UnitedHealth Group, its parent company. The Lewin Group discloses its ownership in its reports and on its website. While the Lewin Group does not advocate for or against any legislation, both Democratic and Republican politicians frequently cite the firm's studies to argue for and against various U.S. healthcare reform proposals.[118] For example, Democratic Senator Ron Wyden uses Lewin Group estimates to cite the feasibility of his Healthy Americans Act.[119] Former U.S. Representative Eric Cantor, the former House Republican Whip, has referred to the organization as "the nonpartisan Lewin Group" in arguing against government-funded health insurance proposals.

Several Lewin studies have been used to argue both for and against the inclusion of a public option in national health reform. Lewin clients who often cite its findings include The Commonwealth Fund, which, in 2009, held up a Lewin study it commissioned[120] to advocate for a public plan. The report showed that legislative proposals would achieve nearly universal coverage and "estimated that a public plan could offer small businesses insurance that is at least 9 percent cheaper than current small-business policies."[121]

However, the Lewin Group has acknowledged that clients sometimes choose to keep the results of studies they have commissioned private. Indeed, Lewin Group Vice President John Sheils told The Washington Post that "sometimes studies come out that don't show exactly what the client wants to see. And in those instances, they have [the] option to bury the study."[122]

Criticism and controversies

SEC investigation

In 2006, the U.S. Securities and Exchange Commission (SEC) began investigating the conduct of UnitedHealth Group's management and directors, for backdating of stock options. Investigations were also started by the Internal Revenue Service and prosecutors in the U.S. attorney's office for the Southern District of New York, who subpoenaed documents from the company. The investigations came to light after a series of probing stories in the Wall Street Journal in May 2006, discussing the apparent backdating of hundreds of millions of dollars' worth of stock options by UHC management. The backdating apparently occurred with the knowledge and approval of the directors, according to the Journal. Major shareholders have filed lawsuits accusing former New Jersey governor Thomas Kean and UHC's other directors of failing in their fiduciary duty.[123] On October 15, 2006, CEO William W. McGuire was forced to resign, and relinquish hundreds of millions of dollars in stock options.[124] [125] [126]

On December 6, 2007, the SEC announced a settlement under which McGuire was to repay $468million, including a $7million civil penalty, as a partial settlement of the backdating prosecution. He was also barred from serving as an officer or director of a public company for ten years.[127] [128] [129] This was the first time in which the little-used "clawback" provision under the Sarbanes-Oxley Act was used against an individual by the SEC. The SEC continued its investigations even after it in 2008 settled legal actions against both UnitedHealth Group itself and its former general counsel.[130]

American Chiropractic Association lawsuit

In June 2006, the American Chiropractic Association filed a national class-action lawsuit against the American Chiropractic Network (ACN), which is owned by UnitedHealth Group and administers chiropractic benefits, and against UnitedHealth Group itself, for alleged practices in violation of the federal Racketeer Influenced and Corrupt Organizations Act (RICO).[131] The Missouri Department of Insurance, Financial Institutions and Professional Registration determined that UnitedHealth Group violated state insurance laws, so levied $536,000 in fines and ordered more than 50,000 cases re-opened; any improperly denied claims must have been reimbursed with interest for chiropractors and patients.[132]

OptumInsight, Ingenix lawsuit

In February 2008, New York State Attorney General Andrew Cuomo announced an industry-wide investigation into a scheme by health insurers to defraud consumers by manipulating reasonable and customary rates. The announcement included a statement that Cuomo intended "to file suit against Ingenix, Inc., its parent UnitedHealth Group, and three additional subsidiaries." Cuomo asserted that his investigation found that rates found in a database of health care charges maintained by Ingenix were lower than what he determined was the actual cost of certain medical expenses. Cuomo said this inappropriately allowed health insurance companies to deny a portion of provider claims, thereby pushing costs down to members.[133]

On January 13, 2009, Ingenix announced an agreement with the New York State attorney settling the probe into the independence of the health pricing database. Under the settlement, UnitedHealth Group and Ingenix would pay $50million to finance a new, non-profit entity that would develop a new healthcare pricing database. Ingenix would discontinue its medical pricing databases when the new entity makes its product available. The company acknowledged the appearance of a conflict of interest but admitted no wrongdoing.[134]

On January 15, 2009, UnitedHealth Group announced a $350million settlement of three class action lawsuits filed in Federal court by the American Medical Association, UnitedHealth Group members, healthcare providers, and state medical societies for not paying out-of-network benefits. This settlement came two days after a similar settlement with Cuomo.[135] [136]

On October 27, 2009, Cuomo announced the creation of FAIR Health, an independent, non-profit organization that would develop a nationwide database for consumer reimbursement, as well as a website where consumers would be able to compare prices before choosing doctors. To fund FAIR Health, the Attorney General's office secured nearly $100million from insurers such as Aetna, UnitedHealth Group, and Anthem Inc.[137]

PacifiCare fine in California

In 2008, the California Department of Insurance took action against UnitedHealthcare's subsidiary PacifiCare Health Systems, acquired in 2005, ultimately fining UnitedHealthcare around $173million for an estimated over 900,000 violations of the Unfair Insurance Practices Act; by 2019, the case was still being disputed in court, with the possibility of affirming $91million in penalties.[138]

Medicare overbilling lawsuit

A whistleblower lawsuit filed in 2011 charged UnitedHealth Group's data analytics division with assisting in defrauding Medicare by boosting risk adjustment scores from Medicare Advantage companies. The suit alleged that UnitedHealth Group subsidiary Ingenix (now OptumInsight) "defrauded the United States of hundreds of millions – and likely billions – of dollars." Former UnitedHealth executive Benjamin Poehling brought the suit under the False Claims Act. The government said it would proceed on claims against two healthcare companies, UnitedHealth and its Texas subsidiary WellMed Medical Management. In February 2017, a federal judge unsealed the suit after the Department of Justice announced it would join the case.[139] [140]

CMS fine over Medicare Part D

In 2017, the Centers for Medicare and Medicaid Services (CMS) fined UnitedHealthcare $2.5million after discovering issues in Medicare Part D leading to delays or denials in a 2016 audit.[141]

2018 New Jersey fine

In 2018, the New Jersey Department of Banking and Insurance fined UnitedHealthcare $2.5million due to various compliance issues; this was the largest fine against a licensee in nine years.[142]

Richard Cole, and others v. UnitedHealthcare

On April 29, 2019, Judge Robert N. Scola Jr. of the United States District Court for the Southern District of Florida, a cancer survivor, recused himself from a case against UnitedHealthcare, stating that the company's denial of treatment was "immoral and barbaric", and that his opinions regarding the company would prevent him from "deciding this case fairly and impartially."[143] [144]

Mental health treatment lawsuit

As reported by openminds.com:

Pennsylvania lawsuit

In 2019, UnitedHealthcare paid a $1million penalty to settle Pennsylvania regulators' allegations that the company violated state and federal laws when paying medical claims, particularly for patients seeking treatment for autism and substance use disorders. The regulators also compelled the company to pay restitution for wrongly denied or delayed claims and to spend $800,000 on an outreach campaign to notify consumers of their mental health and substance use disorder benefits.[145]

Dispute with TeamHealth

In late 2021, Tennessee-based physician network TeamHealth, a subsidiary of the private equity company Blackstone Inc., sued UnitedHealthcare in the 8th District Court of Clark County, Nevada, alleging the insurer underpaid claims to three of TeamHealth's Nevada-based affiliates. In November 2021, the jury unanimously found United guilty of "oppression, fraud, and malice" in its conduct and awarded TeamHealth $2.65million in compensatory damages. In December, the jury reconvened to determine punitive damages and awarded TeamHealth $60million. TeamHealth plans to pursue similar legal action against United and other insurers in New Jersey, Pennsylvania, New York, Florida, Oklahoma, and Texas.[146] [147]

Medicare Advantage overbilling

An October 2021 New York Times report identified UnitedHealth in a list of Medicare insurers accused of over-billing. According to the Inspector General, a whistleblower came forward, so the U.S. government went after UnitedHealth for over-billing Medicare. Executives at UnitedHealth Group told workers to mine old medical records for more illnesses, to identify diagnoses of serious diseases that might have never existed, inflating bills paid by the federal government's Medicare Advantage program.[148]

A study by the Kaiser Family Foundation found that in 2021, Medicare Advantage programs provided insurers with double the gross margin of insurance for individuals, groups, or Medicaid Managed Care.[149] [150]

In July 2024, the Wall Street Journal concluded that UnitedHealth was the worst offender among private insurers who made dubious diagnoses in their clients in order to trigger large payments from the government's Medicare Advantage program. The patients often did not receive any treatment for those insurer-added diagnoses. The report, based on Medicare data obtained from the federal government under a research agreement, calculated that diagnoses added by UnitedHealth for diseases patients had never been treated for had yielded $8.7billion in payments to the company in 2021 – over half of its net income of $17billion for that year.[151] In July 2025, the Wall Street Journal reported that DOJ officials were interviewing former UnitedHealth employees in connection with the investigation,[152] and later that month, UnitedHealth confirmed that it was under criminal and civil federal investigation for its Medicare practices.[153]

Change Healthcare acquisition

In February 2022, the United States Department of Justice sued to stop UnitedHealth Group's $8 billion acquisition of Change Healthcare, arguing that the deal would give UnitedHealth access to its competitors' data and ultimately push up healthcare costs. The Justice Department said that UnitedHealth knew that access to claims would give it a view into rival health plans at Humana, Anthem Inc, CVS Health, Aetna, and Cigna.[154] A U.S. judge rejected the department's bid in September. Following the completion of the acquisition in October 2022, the parties agreed that the appeal would be voluntarily dismissed, with no reasons provided by the Justice Department for dropping the appeal.[155]

Secret payments to nursing homes

In May 2025, The Guardian published an investigative report which uncovered a systemic effort by UnitedHealth to secretly pay nursing homes bonuses to deny hospital transfers for nursing home residents who needed immediate hospital care.[156] Other tactics uncovered by The Guardian include UnitedHealth managers pressuring nurse practitioners to persuade members to sign onto Do not resuscitate agreements and payments for leaking confidential patient data to UnitedHealth sales teams.[157] In June, UnitedHealth sued The Guardian for defamation over the findings of their article.

Campaign against critics

In July 2025, a New York Times investigation revealed that UnitedHealth Group, with the help of the law firm Clare Locke, had made legal threats against journalists, social media users and healthcare professionals who criticized their policies and practices. UnitedHealth also made take-down requests to social media companies hosting content critical of them.[158]

2025 Investigations into Medicare billing practices

In July 2025, UnitedHealth Group was under both civil and criminal investigations by the U.S. Department of Justice into how it bills its Medicare Advantage program and related practices, and said it cooperated with those probes after reaching out to the DOJ.[159]

Foundations

Foundations affiliated with UnitedHealth Group include the UnitedHealth Foundation (UHF) and the UnitedHealthcare Children's Foundation (UHCCF), both of which were established in 1999.[160]

UHF pledged $100 million over ten years to fund scholarships and workforce development programs focused on increasing ethnic and racial diversity within the health care industry.[161] UHF's investment will support 10,000 physicians from underrepresented communities: 5,000 students with a primary care focus and 5,000 physicians who want to advance careers in mental health, nursing, midwifery and medicine.[162] The work of this fund is part of a broader initiative in which UnitedHealth Group has teamed up with nine organizations to provide scholarships to more than 3,000 students through the Diverse Scholars Initiative.

UHCCF administers grants to help pay for medical costs for families with coverage gaps. According to UHCCF, the foundation raises money for medical grants by selling gift items such as backpacks, books, cards, and games, some of which are created by children.[163]

See also

External links

Notes and References

  1. Web site: February 27, 2025 . UnitedHealth Group 2024 Annual Report (Form 10-K) . February 28, 2025 . . February 28, 2025 . https://web.archive.org/web/20250228061134/https://www.sec.gov/ix?doc=/Archives/edgar/data/731766/000073176625000063/unh-20241231.htm . live .
  2. Web site: Subsidiaries of UnitedHealth Group . U.S. Securities and Exchange Commission . September 11, 2021 . September 1, 2021 . https://web.archive.org/web/20210901025756/https://www.sec.gov/Archives/edgar/data/731766/000119312503075552/dex21.htm . live .
  3. Web site: Investor Conference 2023 . UnitedHealth Group . December 4, 2023 . December 4, 2023 . https://web.archive.org/web/20231204155324/https://www.unitedhealthgroup.com/content/dam/UHG/PDF/investors/2023/ic23/UHG_IC23_UNH_Overview.pdf . live .
  4. Web site: Fortune Global 500. December 14, 2025. Fortune. en. January 14, 2026. https://web.archive.org/web/20260114130124/https://fortune.com/ranking/global500/. live.
  5. Web site: End of year Market Cap. CompaniesMarketCap.com. February 13, 2026.
  6. Web site: Chapman . -Michelle . Chapman . Associated Press Michelle . Press . Associated . May 13, 2025 . UnitedHealth Group, largest health insurer in U.S., withdraws financial outlook for 2025 . September 1, 2025 . PBS News . en-us.
  7. Web site: Fry . Erika . How UnitedHealthcare and mega-insurers came to dominate the $4.5 trillion health care industry that Americans both hate and rely upon . September 1, 2025 . Fortune . en . July 25, 2025 . https://web.archive.org/web/20250725132010/https://fortune.com/2024/12/14/unitedhealthcare-brian-thompson-health-insurance/ . live .
  8. Web site: Subsidiaries of UnitedHealth Group Incorporated. sec.gov. September 11, 2021. September 1, 2021. https://web.archive.org/web/20210901025756/https://www.sec.gov/Archives/edgar/data/731766/000119312503075552/dex21.htm. live.
  9. Web site: UnitedHealth Group Subsidiaries. January 31, 2026. insights.greyb.com. September 11, 2025. https://web.archive.org/web/20250911153211/https://insights.greyb.com/unitedhealth-group-subsidiaries/. live.
  10. Web site: UnitedHealth Group Abuse Tracker. January 31, 2026. economicliberties.us. October 22, 2025. https://web.archive.org/web/20251022184105/https://www.economicliberties.us/data-tools/unitedhealth-group-abuse-tracker/. live.
  11. Web site: One of America's biggest companies is imploding | CNN Business. Matt. Egan. May 15, 2025. CNN. October 15, 2025. July 27, 2025. https://web.archive.org/web/20250727122528/https://www.cnn.com/2025/05/15/business/unitedhealth-stock-ceo-investigation. live.
  12. News: UnitedHealth Will Cooperate With Federal Probe of Its Medicare Billing Practices. The New York Times. July 24, 2025. January 30, 2026. 0362-4331. en-US. Reed. Abelson. September 22, 2025. https://web.archive.org/web/20250922123251/https://www.nytimes.com/2025/07/24/health/unitedhealth-medicare-justice-department.html. live.
  13. News: Snowbeck . Christopher . April 26, 2022 . UnitedHealth Group founder to retire from the board after more than 40 years . https://web.archive.org/web/20241205031807/https://www.startribune.com/unitedhealth-group-founder-to-retire-from-the-board-after-more-than-40-years/600168065 . December 5, 2024 . May 16, 2023 . .
  14. Book: Botti, Timothy J. . Envy of the World . 2006 . Algora Pub . 978-0-87586-432-7 . May 16, 2023.
  15. News: Patrick . Margaret . March 3, 2015 . UnitedHealth Group: The history of a health insurance giant . March 1, 2023 . Yahoo Finance . February 8, 2023 . https://web.archive.org/web/20230208220405/https://finance.yahoo.com/news/unitedhealth-group-history-health-insurance-192731176.html . live .
  16. Web site: Smithkline Is Buying A Benefits Company It's Acquiring Diversified Pharmaceutical Services. The Cost: $2.3 Billion. . dead . http://archive.wikiwix.com/cache/20160329220715/http://articles.philly.com/1994-05-04/news/25827533_1_drug-firms-pharmaceutical-marketplace-pharmaceutical-benefits . March 29, 2016 . philly-archives.
  17. News: Freudenheim . Milt . February 16, 1994 . COMPANY NEWS; Healthcare Acquisition Is Planned . The New York Times . https://web.archive.org/web/20150619090033/http://www.nytimes.com/1994/02/16/business/company-news-healthcare-acquisition-is-planned.html . June 19, 2015 . October 7, 2025 . en.
  18. News: webadmin . March 1, 1996 . United HealthCare Expands Presence in Southeast Region . https://web.archive.org/web/20161011120123/http://www.managedcaremag.com/archives/1996/3/united-healthcare-expands-presence-southeast-region . October 11, 2016 . October 7, 2025 . Managed Care Magazine Online . en.
  19. Web site: HealthPartners sold; layoffs possible – Tucson Citizen Morgue, Part 2 (1993–2009) . dead . https://web.archive.org/web/20160304001838/http://tucsoncitizen.com/morgue2/1998/06/12/196795-healthpartners-sold-layoffs-possible/ . March 4, 2016 . June 1, 2015.
  20. Web site: UNITEDHEALTH GROUP INC (Form Type: 10-K, Filing Date: 04/01/2002) . https://web.archive.org/web/20180516175111/http://edgar.secdatabase.com/2528/95013702001930/filing-main.htm . May 16, 2018 . October 7, 2025 . edgar.secdatabase.com.
  21. News: June 19, 2002 . UNITEDHEALTH AGREES TO ACQUIRE AMERICHOICE . live . https://web.archive.org/web/20170307020735/http://www.nytimes.com/2002/06/19/business/company-news-unitedhealth-agrees-to-acquire-americhoice.html . March 7, 2017 . . Associated Press.
  22. News: October 27, 2003 . UnitedHealth Agrees to Buy Rival Mid Atlantic Medical . live . https://web.archive.org/web/20150703120409/http://www.wsj.com/articles/SB106725362340602300 . July 3, 2015 . . 0099-9660 .
  23. Web site: Thomas . Trevor . September 23, 2003 . Rating Agencies: UnitedHealth To Acquire Golden Rule . dead . https://web.archive.org/web/20150703045541/http://www.lifehealthpro.com/2003/09/23/rating-agencies-unitedhealth-to-acquire-golden-rul . July 3, 2015 . July 2, 2015 . LifeHealthPro .
  24. News: Exante Financial Services Becomes OptumHealth Financial Services . https://web.archive.org/web/20190623161803/https://www.businesswire.com/news/home/20080303005991/en/Exante-Financial-Services-OptumHealth-Financial-Services . June 23, 2019 . October 7, 2025 . en.
  25. Web site: UnitedHealthcare to acquire Touchpoint Health Plan - Milwaukee - Milwaukee Business Journal . https://web.archive.org/web/20150703110439/http://www.bizjournals.com/milwaukee/stories/2004/03/29/daily49.html . July 3, 2015 . October 7, 2025 . Milwaukee Business Journal . April 2, 2004 .
  26. Web site: Oxford Health Plans Announces Agreement to Merge With UnitedHealthcare . https://web.archive.org/web/20061015225306/https://www.oxhp.com/main/united.html . October 15, 2006 . October 7, 2025 . oxhp.com.
  27. News: UnitedHealth Group Completes Merger with PacifiCare Health Systems, Inc. . https://web.archive.org/web/20190623161803/https://www.businesswire.com/news/home/20051221005166/en/UnitedHealth-Group-Completes-Merger-PacifiCare-Health-Systems . June 23, 2019 . October 7, 2025 . en.
  28. News: BETHELY . JONATHAN G. . July 10, 2006 . United spins off members to Cigna . live . https://web.archive.org/web/20190623161745/https://amednews.com/article/20060710/business/307109992/6/ . June 23, 2019 . June 23, 2019 . American Medical News.
  29. News: Luna . Kay . February 25, 2006 . Deere completes sale of health care operations . live . https://web.archive.org/web/20190623161741/https://qctimes.com/business/deere-completes-sale-of-health-care-operations/article_6f6eac62-8d17-51fa-accd-f914719d9b38.html . June 23, 2019 . June 23, 2019 . Quad-City Times.
  30. News: UnitedHealth Group to Purchase John Deere Health Care; Builds on John Deere Health Care 20-Year Service History to Important Local Customers; Advances Efforts to Make Health Care Services More Affordable, More Available and Easier to Use . https://web.archive.org/web/20190623161752/https://www.businesswire.com/news/home/20051206005552/en/UnitedHealth-Group-Purchase-John-Deere-Health-Care . June 23, 2019 . October 7, 2025 . en.
  31. News: DeWitt . Jennifer . December 6, 2005 . UnitedHealthcare to buy John Deere Health Care; jobs to remain in Q-C . live . https://web.archive.org/web/20190623161747/https://qctimes.com/news/local/unitedhealthcare-to-buy-john-deere-health-care-jobs-to-remain/article_ba86dcb4-0bc1-5e27-96b7-ada8f3d3f535.html . June 23, 2019 . June 23, 2019 . Quad-City Times.
  32. News: October 15, 2006 . Chief executive at U.S. health insurer forced out - Business - International Herald Tribune (Published 2006) . The New York Times . https://web.archive.org/web/20250304223608/https://www.nytimes.com/2006/10/16/business/worldbusiness/16iht-web.1016united.3168637.html . March 4, 2025 . October 7, 2025 . en . live .
  33. Web site: How William McGuire earned that fat paycheck Chron.com - Houston Chronicle . https://web.archive.org/web/20080329042755/http://www.chron.com/disp/story.mpl/headline/biz/4318193.html . March 29, 2008 . October 7, 2025 . Houston Chronicle . en.
  34. News: Phelps . David . December 6, 2007 . McGuire pays again, ends SEC's inquiry . May 21, 2023 . Star Tribune . May 22, 2023 . https://web.archive.org/web/20230522034622/https://www.startribune.com/mcguire-pays-big-to-end-inquiry/12234411/ . live .
  35. News: UnitedHealth Group Completes Acquisition of Sierra Health Services . https://web.archive.org/web/20190623161752/https://www.businesswire.com/news/home/20080225006528/en/UnitedHealth-Group-Completes-Acquisition-Sierra-Health-Services . June 23, 2019 . October 7, 2025 . en.
  36. Web site: Crowell & Moring's Antitrust Group Represents Sierra Health Services in UnitedHealth Group's $2.6 Billion Acquisition . https://web.archive.org/web/20160315041733/https://www.crowell.com/NewsEvents/PressReleasesAnnouncements/Crowell-Morings-Antitrust-Group-Represents-Sierra-Health-Services-in-UnitedHealth-Groups-26-Billion-Acquisition . March 15, 2016 . October 7, 2025 . crowell.com . en.
  37. News: Hall . Jessica . July 20, 2009 . UPDATE 2-UnitedHealth to buy some Health Net operations . live . https://web.archive.org/web/20190623021140/https://www.reuters.com/article/healthnet/update-2-unitedhealth-to-buy-some-health-net-operations-idUSN2014793120090720 . June 23, 2019 . June 23, 2019 . Reuters.
  38. News: Armstrong . Drew . January 31, 2011 . UnitedHealth Joins WellPoint to Hone Health-Law Lobby . https://web.archive.org/web/20140821200014/http://www.bloomberg.com/news/2011-01-31/unitedhealth-joins-wellpoint-in-alliance-aiming-to-hone-health-law-lobby.html . August 21, 2014 . October 7, 2025 . Bloomberg L.P. . en.
  39. News: Ingenix to Acquire Picis . https://web.archive.org/web/20190623021143/https://www.businesswire.com/news/home/20100722005858/en/Ingenix-Acquire-Picis . June 23, 2019 . October 7, 2025 . en.
  40. Web site: CONN . JOSEPH . July 22, 2010 . Ingenix to acquire Picis . https://web.archive.org/web/20190623161747/https://www.modernhealthcare.com/article/20100722/NEWS/307229975/ingenix-to-acquire-picis . June 23, 2019 . October 7, 2025 . Modern Healthcare . en.
  41. News: Don Weber speaks out on LHI sale . https://web.archive.org/web/20160705080414/http://lacrossetribune.com/news/local/don-weber-speaks-out-on-lhi-sale/article_6e5b74ca-68a7-11e0-9d4a-001cc4c03286.html . July 5, 2016 . October 7, 2025 . La Crosse Tribune . en.
  42. News: WKBT . Don Weber sells 3 Riverside Center buildings in La Crosse . https://web.archive.org/web/20160508232134/http://www.news8000.com/news/3-riverside-center-buildings-for-sale/28078164 . May 8, 2016 . October 7, 2025 . WKBT.
  43. News: Riverside Center buildings sold for $45 million . https://web.archive.org/web/20170903115129/http://lacrossetribune.com/news/local/riverside-center-buildings-sold-for-million/article_3298502f-3f71-5296-aadd-7724470d7178.html . September 3, 2017 . October 7, 2025 . La Crosse Tribune . en.
  44. Web site: Barr . Paul . February 9, 2012 . UnitedHealthcare completes XLHealth deal . https://web.archive.org/web/20190623021150/https://www.modernhealthcare.com/article/20120209/NEWS/302099981/unitedhealthcare-completes-xlhealth-deal . June 23, 2019 . October 7, 2025 . Modern Healthcare . en.
  45. Web site: Janny . Nguyen . August 15, 2022 . fb777 . October 7, 2025 . fb777.dev . en-US.
  46. Web site: UnitedHealth Group, Amil Complete First Phase of Combination. https://web.archive.org/web/20190623021144/https://www.unitedhealthgroup.com/newsroom/2012/1029amil.html. June 23, 2019. October 7, 2025. UnitedHealth Group. en. UnitedHealth Group (NYSE: UNH) and Amil Participações S.A. (BM&FBOVESPA: AMIL3) announced today that the companies have completed the first phase of their combination. The combination is expected to create a new growth platform for UnitedHealth Group's benefits and services companies and will enable Amil to bring advanced technology, a tradition of consumer-focused innovation, modern service and clinical programs to further advance health care in Brazil..
  47. News: Humer . Caroline . October 8, 2012 . UnitedHealth to buy most of Brazil's Amil for $4.9 billion . live . https://web.archive.org/web/20190623021142/https://www.reuters.com/article/us-unitedhealth-takeover-amil-idUSBRE8970E120121008 . June 23, 2019 . June 23, 2019 . Reuters.
  48. News: Mathews. Anna Wilde. Kamp. Jon. October 8, 2012. UnitedHealth to Buy 90% of Brazil's Amil for $4.3 Billion. subscription. live. https://web.archive.org/web/20190623021141/https://www.wsj.com/articles/SB10000872396390444897304578044390351511894. June 23, 2019. June 23, 2019. The Wall Street Journal.
  49. News: Farr . Christina . February 19, 2014 . Audax Health's 24-year-old CEO sells majority stake to UnitedHealth . live . https://web.archive.org/web/20190121232821/https://venturebeat.com/2014/02/19/audax-healths-24-year-old-ceo-sells-majority-stake-in-the-company-to-unitedhealth/ . January 21, 2019 . January 21, 2019 . VentureBeat.
  50. Web site: Optum, Alere Health to Combine to Help Health Plans, Employers and States Improve Population Health, Reduce Health Care Costs. https://web.archive.org/web/20181214114408/https://www.unitedhealthgroup.com/newsroom/2014/1028optumalere.html. December 14, 2018. October 7, 2025. UnitedHealth Group. en.
  51. News: March 30, 2015 . UnitedHealth to Buy Catamaran for $12.8 Billion in Cash . live . https://web.archive.org/web/20170430104640/https://www.wsj.com/articles/unitedhealth-to-buy-catamaran-for-12-8-billion-in-cash-1427709601 . April 30, 2017 . The Wall Street Journal.
  52. News: UnitedHealth Group to exit Obamacare exchanges in all but a 'handful' of states . https://web.archive.org/web/20160919170750/https://www.washingtonpost.com/news/wonk/wp/2016/04/19/unitedhealth-group-to-exit-obamacare-exchanges-in-all-but-a-handful-of-states/ . September 19, 2016 . October 7, 2025 . The Washington Post . en.
  53. News: Encumbered exchange . live . https://web.archive.org/web/20160916132509/http://www.economist.com/news/united-states/21706527-obamacares-future-not-yet-secure-encumbered-exchange . September 16, 2016 . . 0013-0613.
  54. Web site: Court . Emma . The CMO of a health-tech firm inside America's largest health insurer told us why pop-ups and celebs like Katie Couric are key to her 3-part marketing strategy . March 4, 2020 . Business Insider . December 9, 2019 . https://web.archive.org/web/20191209182730/https://www.businessinsider.com/marketing-strategy-unitedhealth-groups-rally-health-cmo-brenda-yang-2019-8 . live .
  55. News: Rauber . Chris . February 3, 2015 . San Francisco's Rally Health startup launches online wellness platform . live . https://web.archive.org/web/20150224213021/http://www.bizjournals.com/sanfrancisco/morning_call/2015/02/san-franciscosrally-health-startup-launches-online.html?page=all . February 24, 2015 . January 21, 2019 . American City Business Journals.
  56. News: Fried . Ina . Ina Fried . February 2, 2015 . Former Zynga Executive David Ko Thinks He Can Turn Health Care Into a Game — And Win . dead . https://web.archive.org/web/20160414013643/http://recode.net/2015/02/02/former-zynga-executive-david-ko-thinks-he-can-turn-health-care-into-a-game-and-win/ . April 14, 2016 . January 21, 2019 . Re/code.
  57. News: Kaul . Greta . February 3, 2015 . Startup Rally Health wants to play games with your health . live . https://web.archive.org/web/20190121232629/https://www.sfchronicle.com/business/article/Startup-Rally-Health-wants-to-play-games-with-6057636.php . January 21, 2019 . January 21, 2019 . San Francisco Chronicle.
  58. Also referred to as Rally.(News: Staff . February 3, 2015 . Rally Health Launches Digital Wellness Platform With Over 5M People . live . https://web.archive.org/web/20190121232808/https://hitconsultant.net/2015/02/03/rally-health-launches-digital-health-platform/ . January 21, 2019 . January 21, 2019 . HIT Consultant.)
  59. Moukheiber . Zina . February 3, 2015 . UnitedHealth Group Launches Wellness Program Tied To Premiums . live . Forbes . https://web.archive.org/web/20190121232657/https://www.forbes.com/sites/zinamoukheiber/2015/02/03/unitedhealth-group-launches-wellness-program-tied-to-premiums/#47572c396194 . January 21, 2019 . January 21, 2019.
  60. Web site: Optum completes acquisition of DaVita Medical Group from DaVita . https://web.archive.org/web/20190622155110/https://www.optum.com/about/news/optum-completes-acquisition-davita.html . June 22, 2019 . October 7, 2025 . optum.com . en.
  61. News: Optum Completes Acquisition of DaVita Medical Group from DaVita . https://web.archive.org/web/20190623021142/https://www.businesswire.com/news/home/20190619005805/en/Optum-Completes-Acquisition-DaVita-Medical-Group-DaVita . June 23, 2019 . October 7, 2025 . en.
  62. News: Wittenberg . Alex . June 19, 2019 . UnitedHealth completes $4.3 billion acquisition of DaVita physician group . October 8, 2025 . . October 19, 2025 . https://web.archive.org/web/20251019022809/https://www.bizjournals.com/twincities/news/2019/06/19/unitedhealth-completes-4-billion-acquisition-of.html . live .
  63. News: Lombardo . Cara . June 20, 2019 . UnitedHealth Agrees to Buy Payments Firm Equian for $3.2 Billion . live . https://web.archive.org/web/20190623024304/https://www.wsj.com/articles/unitedhealth-agrees-to-buy-payments-firm-equian-for-3-2-billion-11561071058 . June 23, 2019 . June 23, 2019 . The Wall Street Journal.
  64. News: Acharya . Bhargav . June 20, 2019 . UnitedHealth to buy healthcare payments firm Equian for $3.2 billion: WSJ . live . https://web.archive.org/web/20190623021141/https://www.reuters.com/article/us-equian-m-a-unitedhealth/unitedhealth-to-buy-healthcare-payments-firm-equian-for-32-billion-wsj-idUSKCN1TL300 . June 23, 2019 . June 23, 2019 . Reuters.
  65. News: Reilly . Mark . June 21, 2019 . UnitedHealth to buy health-payments business Equian for $3.2B, report says . October 8, 2025 . . October 19, 2025 . https://web.archive.org/web/20251019022811/https://www.bizjournals.com/twincities/news/2019/06/21/unitedhealth-to-buy-health-payments-business.html . live .
  66. News: Lovett . Laura . Muoio . Dave . June 24, 2019 . UnitedHealth Group acquires PatientsLikeMe . live . https://web.archive.org/web/20190712141035/https://www.mobihealthnews.com/content/unitedhealth-group-acquires-patientslikeme . July 12, 2019 . June 26, 2019 . MobiHealthNews . HIMSS Media.
  67. Web site: UnitedHealth Group names Optum CEO as president . June 8, 2020 . Star Tribune. November 13, 2019 .
  68. News: March 29, 2022 . UnitedHealth to buy LHC Group for $5.4 billion in home healthcare push . October 7, 2025 . Reuters . en . September 14, 2023 . https://web.archive.org/web/20230914193928/https://www.reuters.com/business/healthcare-pharmaceuticals/unitedhealth-buy-lhc-group-about-54-billion-2022-03-29/ . live .
  69. Web site: Bannow. Tara. July 15, 2022. UnitedHealthcare to offer $0 insulin, Epi-Pens, but only for some members. October 7, 2025. STAT. en-US. Herman. Bob. July 26, 2025. https://web.archive.org/web/20250726084759/https://www.statnews.com/2022/07/15/unitedhealthcare-to-offer-0-insulin-epi-pens-but-only-for-some-members/. live.
  70. Web site: Snowbeck . Christopher . September 18, 2023 . UnitedHealth Group moves Minnesota headquarters from Minnetonka to Eden Prairie . October 7, 2025 . Star Tribune . en . October 3, 2025 . https://web.archive.org/web/20251003202056/https://www.startribune.com/unitedhealth-group-moves-minnesota-headquarters-minnetonka-eden-prairie-optum-healthcare-real-estate/600305526 . live .
  71. Web site: Inline XBRL Viewer . October 7, 2025 . sec.gov.
  72. News: February 27, 2024 . US launches antitrust investigation into UnitedHealth, WSJ reports . May 1, 2024 . Reuters.
  73. News: April 30, 2024 . UnitedHealth hackers used stolen login credentials to break in, CEO says . May 1, 2024 . Reuters.
  74. News: Abelson . Reed . Weiland . Noah . May 1, 2024 . Senators Slam UnitedHealth's C.E.O. Over Cyberattack . May 13, 2024 . The New York Times . en-US . 0362-4331 . May 13, 2024 . https://web.archive.org/web/20240513194850/https://www.nytimes.com/2024/05/01/health/united-health-cyberattack-senate.html . live .
  75. News: Lukpat . Alyssa . Wernau . Julie . Wilde Matthews . Anna . December 4, 2024 . UnitedHealth Executive Shot Dead in Targeted Attack Outside Manhattan Hotel . December 4, 2024 . The Wall Street Journal . December 19, 2024 . https://web.archive.org/web/20241219032637/https://www.wsj.com/health/healthcare/unitedhealthcare-ceo-brian-thomspon-shot-killed-c0358c5e?mod=WSJ_home_mediumtopper_pos_1 . live .
  76. News: Miller . Myles . Tozzi . John . UnitedHealth Executive Fatally Shot in NYC on Investor Day . December 4, 2024 . Bloomberg.com . December 4, 2024 . en.
  77. News: Bitter Americans React to UnitedHealthcare CEO's Murder: 'My Empathy Is Out of Network'. Novak. Matt. December 4, 2024. Gizmodo. December 5, 2024. December 5, 2024. https://web.archive.org/web/20241205013511/https://gizmodo.com/bitter-americans-react-to-unitedhealthcare-ceos-murder-my-empathy-is-out-of-network-2000534520. live.
  78. News: Grim memes highlight bleak state of insurance in wake of UnitedHealth CEO shooting. Thalen. Mikael. December 4, 2024. Daily Dot. December 5, 2024. December 5, 2024. https://web.archive.org/web/20241205140737/http://www.dailydot.com/debug/unitedhealth-ceo-brian-thompson-memes/. live.
  79. Klee . Miles . December 4, 2024 . Social Media Has Little Sympathy for Murdered Health Insurance Exec . December 5, 2024 . . en-US . April 1, 2025 . https://web.archive.org/web/20250401081401/https://www.rollingstone.com/culture/culture-news/health-insurance-murder-reactions-1235192490/ . live .
  80. News: Glenza . Jessica . December 5, 2024 . Brian Thompson's killing sparks outrage over state of US healthcare . October 7, 2025 . The Guardian . en-GB . 0261-3077.
  81. Cameron . Dell . Police Arrest UHC CEO Shooting Suspect, App Developer Luigi Mangione . October 7, 2025 . Wired . en-US . 1059-1028.
  82. News: UnitedHealthcare taps company veteran Tim Noel as new CEO following Brian Thompson killing. Annika Kim. Constantino. CNBC. January 23, 2025. January 24, 2025.
  83. News: UnitedHealthcare has a new CEO. Ramishah. Maruf. CNN. January 23, 2025. January 24, 2025.
  84. News: UnitedHealth Group promotes Tim Noel to CEO of health insurance business. Bob. Herman. statnews.com. Stat News. January 23, 2025. January 24, 2025. January 24, 2025. https://web.archive.org/web/20250124002020/https://www.statnews.com/2025/01/23/unitedhealth-group-names-tim-noel-ceo-health-insurance-business/. live.
  85. News: Abelson . Reed . Sanger-Katz . Margot . January 30, 2023 . New Medicare Rule Aims to Take Back $4.7 Billion From Insurers (Published 2023) . The New York Times . https://web.archive.org/web/20250410015702/https://www.nytimes.com/2023/01/30/upshot/medicare-overbilling-biden-rule.html . April 10, 2025 . October 7, 2025 . en . live .
  86. News: Goldstein . Steve . Laise . Eleanor . June 14, 2023 . Older adults are finally catching up on delayed surgeries. That means pain for health insurers, gains for hospital operators. . January 24, 2025 . The Wall Street Journal.
  87. News: UnitedHealth names former US FDA chief Scott Gottlieb to its board . November 18, 2025 . Reuters.
  88. Web site: July 16, 2025 . UnitedHealth Has 2,694 Subsidiaries and Affiliates. Is It Too Big to Manage? . August 16, 2025 . The American Prospect . en-us.
  89. Web site: Newitt . Patsy . July 17, 2025 . UnitedHealth's 90,000 physicians, 423 ASCs and 2,700 subsidiaries: 5 notes . August 16, 2025 . Becker’s ASC . en-US . UnitedHealth’s most aggressive acquisition efforts began in 2010, focusing on clinical services. Today, the breakdown of its subsidiaries by category includes: 2,050+ clinical entities 200+ insurance-related businesses 150+ international assets 100+ pharmacy companies 100+ other support services 4. Key acquisitions shaping the ASC and physician landscape Several high-profile deals have cemented UnitedHealth’s reach into physician services and outpatient care: Surgical Care Affiliates (SCA Health): Acquired for $2.3 billion in 2017 DaVita Medical Group: $3.4 billion in 2019 Equian (payment integrity firm): $3.2 billion in 2019 Landmark Health (home-based medical care): $3.5 billion in 2021 Change Healthcare (claims, data): $8 billion in 2023 LHC Group (home health/hospice): $5.4 billion in 2023 . August 12, 2025 . https://web.archive.org/web/20250812062809/https://www.beckersasc.com/asc-transactions-and-valuation-issues/unitedhealths-90000-physicians-423-ascs-and-2700-subsidiaries-5-notes/ . live .
  90. Web site: Read the Report . August 16, 2025 . Sunlight Report on UnitedHealth Group . en . The Sunlight Report on UnitedHealth Group is a first-of-its-kind look at the nearly 2,700 acquisitions and internally created subsidiaries that make up UnitedHealth Group, the largest health care conglomerate in the world. . July 20, 2025 . https://web.archive.org/web/20250720180657/https://www.sunlightreportinsurance.com/about . live .
  91. Web site: UnitedHealth Has 2,694 Subsidiaries and Affiliates. Is It Too Big to Manage? . August 16, 2025 . PNHP . en-US . August 19, 2025 . https://web.archive.org/web/20250819111618/https://pnhp.org/news/unitedhealth-has-2694-subsidiaries-and-affiliates-is-it-too-big-to-manage/ . live .
  92. Web site: Byers . Jeff . April 12, 2018 . Optum A Step Ahead in Vertical Integration Frenzy . live . https://web.archive.org/web/20230204032511/https://www.healthcaredive.com/news/optum-unitedhealth-vertical-integration-walmart/520410/ . February 4, 2023 . April 27, 2023 . . en.
  93. News: Factbox: Which CVS rivals also own primary care services . https://web.archive.org/web/20230419191633/https://www.reuters.com/business/healthcare-pharmaceuticals/which-cvs-rivals-also-own-primary-care-services-2023-02-08/ . April 19, 2023 . October 7, 2025 . Reuters . en-US.
  94. Web site: December 31, 2021 . UnitedHealth Group Annual Report 2021 . December 31, 2021 . UnitedHealth Group Incorporated . UnitedHealth . January 20, 2022 . https://web.archive.org/web/20220120013900/https://www.unitedhealthgroup.com/content/dam/UHG/PDF/investors/2021/UNH-Q4-2021-Release.pdf . live .
  95. Web site: Our Businesses . October 7, 2025 . unitedhealthgroup.com . en . September 29, 2025 . https://web.archive.org/web/20250929031212/https://www.unitedhealthgroup.com/uhg/businesses.html . live .
  96. Web site: UnitedHealth Group Reports First Quarter 2024 Results. December 10, 2024. December 13, 2024. https://web.archive.org/web/20241213072324/https://www.unitedhealthgroup.com/content/dam/UHG/PDF/investors/2024/UNH-Q1-2024-Release.pdf. live.
  97. Web site: December 31, 2022 . Form 10-K . March 7, 2023 . . March 9, 2023 . https://web.archive.org/web/20230309190915/https://www.unitedhealthgroup.com/content/dam/UHG/PDF/investors/2022/UNH-Q4-2022-Form-10-K.pdf . live .
  98. UnitedHealth Group Reports 2023 Results . January 12, 2024 . February 7, 2024 . https://web.archive.org/web/20240126092438/https://www.businesswire.com/news/home/20240112297126/en/UnitedHealth-Group-Reports-2023-Results . January 26, 2024 . en . BusinessWire.
  99. "UnitedHealth Group Reports 2024 Results " (PDF). UnitedHealth Group. December 31, 2024. Retrieved June 13, 2025.
  100. Web site: 2005 Annual Report . live . https://web.archive.org/web/20170421064712/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2005.pdf . April 21, 2017.
  101. Web site: 2006 Annual Report . live . https://web.archive.org/web/20170421064332/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2006.pdf . April 21, 2017.
  102. Web site: 2007 Annual Report . live . https://web.archive.org/web/20170421071325/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2007.pdf . April 21, 2017.
  103. Web site: Form 10-K . January 12, 2025 . sec.gov . January 12, 2025 . https://web.archive.org/web/20250112222556/https://www.sec.gov/Archives/edgar/data/731766/000119312509025587/d10k.htm . live .
  104. Web site: 2009 Annual Report . live . https://web.archive.org/web/20181024174806/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2009.pdf . October 24, 2018.
  105. Web site: 2010 Annual Report . live . https://web.archive.org/web/20170421064913/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2010.pdf . April 21, 2017.
  106. Web site: 2011 Annual Report . live . https://web.archive.org/web/20170421070406/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2011.pdf . April 21, 2017.
  107. Web site: 2012 Annual Report . live . https://web.archive.org/web/20170421064337/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2012.pdf . April 21, 2017.
  108. Web site: 2013 Annual Report . live . https://web.archive.org/web/20170421064718/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2013.pdf . April 21, 2017.
  109. Web site: 2014 Annual Report . live . https://web.archive.org/web/20170421065843/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2014.pdf . April 21, 2017.
  110. Web site: 2015 Annual Report . live . https://web.archive.org/web/20181118164733/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2015.pdf . November 18, 2018.
  111. Web site: 2016 Annual Report . live . https://web.archive.org/web/20181118164826/https://www.annualreports.com/HostedData/AnnualReportArchive/u/NYSE_UNH_2016.pdf . November 18, 2018.
  112. Web site: Document . live . https://web.archive.org/web/20181118164730/https://www.sec.gov/Archives/edgar/data/731766/000073176618000005/unh2017123110-k.htm . November 18, 2018 . June 2, 2019 . Sec.gov.
  113. Web site: UnitedHealth Group Incorporated 2018 Form 10-K Annual Report. United States Securities and Exchange Commission. U.S. Securities and Exchange Commission. January 31, 2026. July 12, 2022. https://web.archive.org/web/20220712111453/https://www.sec.gov/Archives/edgar/data/731766/000073176619000005/unh2018123110-k.htm. live.
  114. Web site: Financial & Earnings Reports . July 30, 2021 . unitedhealthgroup.com . en . July 30, 2021 . https://web.archive.org/web/20210730233633/https://www.unitedhealthgroup.com/investors/financial-reports.html . live .
  115. Web site: OpenSecrets Lobbying Activity-UnitedHealth Group . October 8, 2025 . OpenSecrets . August 27, 2025 . https://web.archive.org/web/20250827113450/https://www.opensecrets.org/orgs/unitedhealth-group/lobbying?id=D000000348 . live .
  116. Web site: UnitedHealth Group Hired Firms . October 7, 2025 . OpenSecrets . en.
  117. Web site: December 26, 2011 . UnitedHealth Group . https://web.archive.org/web/20111226155942/http://www.opensecrets.org/pacs/lookup2.php?strID=C00274431&cycle=2010 . December 26, 2011 . February 4, 2011 . OpenSecrets..
  118. News: Hilzenrah . David S. . July 23, 2009 . Insurer-Owned Consulting Firm Often Cited in Health Debate . live . https://web.archive.org/web/20171020174034/http://www.washingtonpost.com/wp-dyn/content/article/2009/07/22/AR2009072203696.html . October 20, 2017 . .
  119. Independent Health Reform Analysis: Middle Class Wins Under Healthy Americans Act . September 17, 2008 . . June 23, 2019 . live . https://web.archive.org/web/20190623021139/https://www.wyden.senate.gov/news/press-releases/independent-health-reform-analysis-middle-class-wins-under-healthy-americans-act . June 23, 2019.
  120. Web site: The Path to a High Performance U.S. Health System: A 2020 Vision and the Policies to Pave the Way - The Commonwealth Fund . https://web.archive.org/web/20090830041528/http://www.commonwealthfund.org/Content/Publications/Fund-Reports/2009/Feb/The-Path-to-a-High-Performance-US-Health-System.aspx . August 30, 2009 . October 7, 2025 . commonwealthfund.org.
  121. News: Hoover . Kent . July 22, 2009 . Small-biz divided on health-care reform . live . https://web.archive.org/web/20161011102914/http://www.bizjournals.com/buffalo/stories/2009/05/04/story14.html?b=1241409600%5E1820494 . October 11, 2016 . .
  122. News: Hilzenrath . David S. . July 22, 2009 . Research Firm Cited by GOP Is Owned by Health Insurer . live . https://web.archive.org/web/20161119144604/http://www.washingtonpost.com/wp-dyn/content/article/2009/07/22/AR2009072202216.html?sub=AR . November 19, 2016 . The Washington Post.
  123. News: Conason . Joe . September 15, 2006 . Jersey hustler . live . https://web.archive.org/web/20190623161747/https://www.salon.com/2006/09/15/kean_3/ . June 23, 2019 . June 23, 2019 . Salon.
  124. News: December 6, 2007 . Ex-UnitedHealth CEO To Pay $800M In Settlements . subscription . live . https://web.archive.org/web/20190623161744/https://www.law360.com/articles/41799/ex-unitedhealth-ceo-to-pay-800m-in-settlements . June 23, 2019 . June 23, 2019 . Law360.
  125. FORMER UNITED HEALTH GROUP CEO/CHAIRMAN SETTLES STOCK OPTIONS BACKDATING CASE FOR $468 MILLION . December 6, 2007 . . September 17, 2017 . live . https://web.archive.org/web/20170711152829/https://www.sec.gov/litigation/litreleases/2007/lr20387.htm . July 11, 2017.
  126. News: FREED . JOSHUA . December 7, 2007 . UnitedHealth's ex-CEO to forfeit millions to settle suit . live . https://web.archive.org/web/20190623161744/https://www.post-gazette.com/business/businessnews/2007/12/07/UnitedHealth-s-ex-CEO-to-forfeit-millions-to-settle-suit/stories/200712070141 . June 23, 2019 . June 23, 2019 . . Associated Press.
  127. https://www.sec.gov/litigation/litreleases/2007/lr20387.htm Securities and Exchange Commission v. William W. McGuire, M.D., Civil Action No. 07-CV-4779-JMR/FLN (D. Minn. 2007)
  128. Web site: Press Release: Former UnitedHealth Group CEO/Chairman Settles Stock Options Backdating Case for $468 Million; 2007-255; Dec. 6, 2007 . https://web.archive.org/web/20140820011823/http://www.sec.gov/news/press/2007/2007-255.htm . August 20, 2014 . October 7, 2025 . sec.gov.
  129. Web site: Dr. William McGuire Settles with the SEC and the UnitedHealth Group Special Litigation Committee on Stock Opti... (Former CEO Agrees to Forego $420 ...) . https://web.archive.org/web/20090518044010/http://www.bio-medicine.org/medicine-news-1/Dr--William-McGuire-Settles-with-the-SEC-and-the-UnitedHealth-Group-Special-Litigation-Committee-on-Stock-Options-Matter-7798-1/ . May 18, 2009 . October 7, 2025 . bio-medicine.org . en.
  130. Web site: Press Release: SEC Files Settled Enforcement Actions Against UnitedHealth Group and Former General Counsel in Stock Options Backdating Case (Dec. 22, 2008) . live . https://web.archive.org/web/20170711152059/https://www.sec.gov/news/press/2008/2008-302.htm . July 11, 2017.
  131. Web site: American Chiropractic Association . https://web.archive.org/web/20070817194126/http://acatoday.com/press_css.cfm?CID=1381 . August 17, 2007 . October 7, 2025 . acatoday.com.
  132. Web site: UHC Fined $536,000, Reopens 50,000 Claims Dynamic Chiropractic . December 5, 2024 . dynamicchiropractic.com . en . December 7, 2024 . https://web.archive.org/web/20241207082506/https://dynamicchiropractic.com/article/54265-uhc-fined-536-000-reopens-50-000-claims . live .
  133. http://www.oag.state.ny.us/press/2008/feb/feb13a_08.html "Cuomo Announces Industry-Wide Investigation into Health Insurer's Fraudulent Reimbursement Scheme"
  134. News: UPDATE 2-UnitedHealth settles New York reimbursement probe . https://web.archive.org/web/20190623161749/https://www.reuters.com/article/unitedhealth/update-2-unitedhealth-settles-new-york-reimbursement-probe-idUSN1338639920090113 . June 23, 2019 . October 7, 2025 . U.S. . en-US.
  135. Web site: Associated Press . UnitedHealth settles lawsuit . Los Angeles Times . January 16, 2009 . December 4, 2024 . December 9, 2024 . https://web.archive.org/web/20241209011313/https://www.latimes.com/archives/la-xpm-2009-jan-16-fi-unitedhealth16-story.html . live .
  136. News: Krauskopf . Lewis . January 15, 2009 . UPDATE 2-UnitedHealth settles payment suits for $350 million . live . https://web.archive.org/web/20090220052804/http://www.reuters.com/article/rbssHealthcareNews/idUSN1531133620090115 . February 20, 2009 . Reuters.
  137. News: Stempel . Jonathan . October 27, 2009 . Cuomo sets healthcare reimbursement reform . live . https://web.archive.org/web/20091031200023/http://www.reuters.com/article/topNews/idUSTRE59Q3D320091027 . October 31, 2009 . Reuters.
  138. News: January 14, 2019 . California high court won't review $91M fine against UnitedHealthcare . live . https://web.archive.org/web/20190404092452/http://www.startribune.com/california-high-court-won-t-review-91m-fine-against-unitedhealthcare/503907322/ . April 4, 2019 . June 13, 2019 . Star Tribune.
  139. News: Williams Walsh . Mary . February 17, 2017 . UnitedHealth Group accused of overbilling Medicare . live . https://web.archive.org/web/20170217181015/http://www.tampabay.com/news/business/unitedhealth-group-accused-of-overbilling-medicare/2313611 . February 17, 2017 . . en-us.
  140. News: Snowbeck . Christopher . February 17, 2017 . UnitedHealth Group targeted by whistleblower lawsuit . live . https://web.archive.org/web/20170217173422/http://www.startribune.com/unitedhealth-group-targeted-by-whistleblower-lawsuit/414083943/ . February 17, 2017 . Star Tribune.
  141. Web site: March 7, 2017 . CMS fines UnitedHealthcare $2.5M over improper Medicare denials, delays . live . https://web.archive.org/web/20171215005039/https://www.beckershospitalreview.com/payer-issues/cms-fines-unitedhealthcare-2-5m-over-improper-medicare-denials-delays.html . December 15, 2017 . June 14, 2019 . beckershospitalreview.com.
  142. Web site: July 31, 2018 . UnitedHealthcare is fined $2.5 million by New Jersey regulators . live . https://web.archive.org/web/20180802010544/http://www.startribune.com/unitedhealthcare-paying-2-5-million-fine-to-new-jersey-regulators/489675671/ . August 2, 2018 . June 14, 2019 . Star Tribune.
  143. News: Flynn . Megan . May 1, 2019 . 'Immoral and barbaric': Cancer-surviving judge blasts insurer for denying treatment . live . https://web.archive.org/web/20190503152242/https://www.washingtonpost.com/nation/2019/05/01/immoral-barbaric-cancer-surviving-judge-blasts-insurer-denying-therapy-before-recusing-himself/ . May 3, 2019 . May 4, 2019 . The Washington Post.
  144. Web site: Order of Recusal.pdf . live . https://web.archive.org/web/20190504012425/https://drive.google.com/file/d/1vTSIyp5a-zC5B_CHnwfB_ydCvxYvubcf/view?usp=embed_facebook . May 4, 2019 . June 2, 2019 . Google Docs.
  145. News: Snowbeck . Christopher . November 4, 2019 . UnitedHealthcare assessed $1 million penalty for claims payment violations . March 26, 2024 . Star Tribune . December 4, 2023 . https://web.archive.org/web/20231204043940/https://www.startribune.com/unitedhealthcare-faces-1-million-penalty-for-claims-payment-violations/564370152/ . live .
  146. Web site: UnitedHealthcare to appeal after jury awards TeamHealth $60M in damages . December 21, 2021 . Healthcare Dive . en-US . December 20, 2021 . https://web.archive.org/web/20211220202317/https://www.healthcaredive.com/news/nevada-jury-unitedhealthcare-guilty-teamhealth-reimbursement-surprise-billing/610681/ . live .
  147. Web site: December 8, 2021 . Nevada jury: Health insurers owe ER doctors $60M in damages . December 21, 2021 . AP NEWS . en . December 21, 2021 . https://web.archive.org/web/20211221214029/https://apnews.com/article/science-health-business-state-courts-las-vegas-mass-shooting-ab6efae567be8dc77e53d24dc4c4f0b1 . live .
  148. Reed Abelson and Margot Sanger-Katz, "'The Cash Monster Was Insatiable': How Insurers Exploited Medicare for Billions", The New York Times, October 8, 2021.
  149. News: Abelson . Reed . Sanger-Katz . Margot . March 31, 2023 . Medicare Delays a Full Crackdown on Private Health Plans . . After intense lobbying by insurers, U.S. health officials say changes to reduce overbilling in Medicare Advantage will be phased in over three years . April 1, 2023 . April 1, 2023 . https://web.archive.org/web/20230401003634/https://www.nytimes.com/2023/03/31/health/medicare-overbilling-insurance.html . live .
  150. Web site: Ortaliza . Jared . Fuglesten Biniek . Jeannie . Hinton . Elizabeth . Neuman . Tricia . Rudowitz . Robin . Cox . Cynthia . February 28, 2023 . Health Insurer Financial Performance in 2021 . . April 1, 2023 . April 1, 2023 . https://web.archive.org/web/20230401003622/https://www.kff.org/medicare/issue-brief/health-insurer-financial-performance/ . live .
  151. Web site: July 8, 2024. Insurers Pocketed $50 Billion From Medicare for Diseases No Doctor Treated. The Wall Street Journal. Christopher. Weaver. Tom. McGinty. Anna Wilde. Mathews. Mark. Maremont. Andrew. Mollica. July 8, 2024. July 8, 2024. https://web.archive.org/web/20240708151856/https://www.wsj.com/health/healthcare/medicare-health-insurance-diagnosis-payments-b4d99a5d. live.
  152. Web site: Mathews . Christopher Weaver and Anna Wilde . Exclusive Prosecutors Question Doctors About UnitedHealth's Medicare Billing Practices . July 10, 2025 . The Wall Street Journal . July 9, 2025 . en-US . July 10, 2025 . https://web.archive.org/web/20250710015508/https://www.wsj.com/business/unitedhealth-doj-medicare-billing-investigation-8d56800d . live .
  153. Web site: Luhby . Tami . July 24, 2025 . UnitedHealth confirms federal investigation into its Medicare practices CNN Business . July 25, 2025 . CNN . en . July 25, 2025 . https://web.archive.org/web/20250725032157/https://www.cnn.com/2025/07/24/business/unitedhealth-investigation-doj . live .
  154. News: Diane Bartz . February 24, 2022 . U.S. sues to block UnitedHealth's $8bln deal for Change Healthcare . Reuters . March 19, 2022 . March 30, 2022 . https://web.archive.org/web/20220319215856/https://www.reuters.com/business/healthcare-pharmaceuticals/us-justice-department-block-13-bln-deal-by-unitedhealth-source-2022-02-24/ . live .
  155. Web site: March 21, 2023 . US drops appeal of UnitedHealth acquisition of Change Healthcare . Reuters . en . August 27, 2023 . August 12, 2023 . https://web.archive.org/web/20230812171854/https://www.reuters.com/legal/us-drops-appeal-unitedhealth-acquisition-change-healthcare-2023-03-21/ . live .
  156. News: Roy . Sriparna . May 21, 2025 . UnitedHealth falls on report it secretly paid nursing homes to reduce hospital transfers . May 24, 2025 . Reuters . en.
  157. News: Joseph . George . May 21, 2025 . Revealed: UnitedHealth secretly paid nursing homes to reduce hospital transfers . May 21, 2025 . The Guardian . en-GB . 0261-3077.
  158. News: Enrich . David . July 12, 2025 . UnitedHealth's Campaign to Quiet Critics . July 20, 2025 . The New York Times . en-US . 0362-4331 . July 19, 2025 . https://web.archive.org/web/20250719133137/https://www.nytimes.com/2025/07/12/business/unitedhealth-insurance-criticism.html . live .
  159. Web site: Constantino . Annika Kim . July 24, 2025 . UnitedHealth says it is cooperating with DOJ investigations into Medicare billing practices . January 29, 2026 . CNBC . en . January 28, 2026 . https://web.archive.org/web/20260128211253/https://www.cnbc.com/2025/07/24/unitedhealthcare-doj-investigation-medicare-billing.html . live .
  160. News: Nguyen . Tina . March 10, 2022 . United Health Foundation to Donate $1M to Ukraine . Twin Cities Business . July 27, 2023 . July 27, 2023 . https://web.archive.org/web/20230727002232/https://tcbmag.com/united-health-foundation-to-donate-1m-to-ukraine/ . live .
  161. Web site: Snowbeck . Christopher . July 14, 2022 . United Health Foundation pledges $100 million to help diversify health care workforce . live . https://web.archive.org/web/20220717030555/https://www.startribune.com/united-health-foundation-pledges-100-million-to-help-diversify-health-care-workforce/600190100/ . July 17, 2022 . August 1, 2023 . Star Tribune.
  162. Web site: UnitedHealth to invest $100M in diversifying healthcare workforce . https://web.archive.org/web/20231114115045/https://www.fiercehealthcare.com/payers/unitedhealth-invest-100m-diversifying-healthcare-workforce . November 14, 2023 . February 7, 2024 . Fierce Healthcare . June 8, 2022 . en.
  163. News: Kortwright . Amalia . December 20, 2017 . Alabaster family spreading awareness about UHCCF grants . Shelby County Reporter . July 31, 2023 . July 31, 2023 . https://web.archive.org/web/20230731191630/https://www.shelbycountyreporter.com/2017/12/20/alabaster-family-spreading-awareness-about-uchhf-grants/ . live .

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