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2. UnitedHealth Group - Wikipedia

   en.wikipedia.org/wiki/UnitedHealth_Group

   Selling insurance products under UnitedHealthcare, and health care services under the Optum brand, it is the world's ninth-largest company by revenue and the largest health care company by revenue. The company is ranked 8th on the 2024 Fortune Global 500. [4] UnitedHealth Group had a market capitalization of $460.3 billion as of December 20, 2024.

3. Health care provider - Wikipedia

   en.wikipedia.org/wiki/Health_care_provider

   Health care providers often receive payments for their services rendered from health insurance providers. In the United States, the Department of Health and Human Services defines a health care provider as any "person or organization who furnishes, bills, or is paid for health care in the normal course of business." [1] [2]

4. Optum - Wikipedia

   en.wikipedia.org/wiki/Optum

   Optum serves employers, government agencies, health plans, life science companies, care providers and individuals and families offering products in data and analytics, pharmacy care services, health care operations and delivery, population health management and advisory services. [7]

5. Healthgrades - Wikipedia

   en.wikipedia.org/wiki/Healthgrades

   Healthgrades has amassed information on over three million U.S. health care providers. [7] The company was founded by Kerry Hicks, David Hicks, Peter Fatianow, John Neal, and Sarah Lochran, and is based in Denver, Colorado. [3] Jeff Hallock serves as RVO Health's CEO. [3]

6. National Provider Identifier - Wikipedia

   en.wikipedia.org/wiki/National_Provider_Identifier

   A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI has replaced the Unique Physician Identification Number (UPIN) as the required identifier for Medicare services, and is used by other payers ...

7. Managed care - Wikipedia

   en.wikipedia.org/wiki/Managed_care

   Critics of managed care argue that "for-profit" managed care has been an unsuccessful health policy, as it has contributed to higher health care costs (25–33% higher overhead at some of the largest HMOs), increased the number of uninsured citizens, driven away health care providers, and applied downward pressure on quality (worse scores on 14 ...