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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. 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 ...

  4. United Health Services - Wikipedia

    en.wikipedia.org/wiki/United_Health_Services

    United Health Services (UHS) (United Health Services Hospitals, Inc.) is the largest and most comprehensive provider of healthcare services in upstate New York's Southern Tier. [ 3 ] A locally owned, not-for-profit system, it is governed by a volunteer board of directors composed of residents from around the region. [ 4 ]

  5. HealthCare.gov - Wikipedia

    en.wikipedia.org/wiki/HealthCare.gov

    President Barack Obama signed the Affordable Care Act (ACA) into law on March 23, 2010, in the East Room before a select audience of nearly 300 people. He stated that the health reform effort, designed after a long and acrimonious debate facing fierce opposition in the Congress to expand health insurance coverage, was based on "the core principle that everybody should have some basic security ...

  6. Healthcare in the United States - Wikipedia

    en.wikipedia.org/wiki/Healthcare_in_the_United...

    Affordable Health Care for America (H.R. 3962) America's Affordable Health Choices (H.R. 3200) Baucus Health Bill (S. 1796) Proposed. American Health Care Act (2017) Medicare for All Act (2021, H.R. 1976) Healthy Americans Act (2007, 2009) Health Security Act (H.R. 3600) Latest enacted. Affordable Care Act (H.R. 3590) Health Care and Education ...

  7. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    The format of the toll-free number is called a non-geographic number, in contrast to telephone numbers associated with households that are geographic. (Since the advent of cell phones and voice over IP, households can have any area code in the U.S., but it is still geographic in the sense that calls from that area code are considered local, but ...

  8. Unique physician identification number - Wikipedia

    en.wikipedia.org/wiki/Unique_physician...

    A unique physician identification number (UPIN) was a six-character alpha-numeric identifier used by Medicare to identify doctors in the United States.They were discontinued in June 2007 [1] and replaced by National Provider Identifier, or NPI numbers.

  9. Preferred provider organization - Wikipedia

    en.wikipedia.org/wiki/Preferred_provider...

    In U.S. health insurance, a preferred provider organization (PPO), sometimes referred to as a participating provider organization or preferred provider option, is a managed care organization of medical doctors, hospitals, and other health care providers who have agreed with an insurer or a third-party administrator to provide health care at ...