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  2. Blue Cross Blue Shield Association - Wikipedia

    en.wikipedia.org/wiki/Blue_Cross_Blue_Shield...

    Founded in 1948, [26] Arkansas Blue Cross Blue Shield (ABCBS) [27] is an independent licensee of the Blue Cross Blue Shield Association, and the largest healthcare provider in the state. [28] It donated $1.98 million to The Walton College of Business toward founding its Robert L. Shoptaw Master of Healthcare Business Analytics Program. [ 29 ]

  3. Health Care Service Corporation - Wikipedia

    en.wikipedia.org/wiki/Health_Care_Service...

    The company was founded in 1936 and is based in Chicago, Illinois with a network of offices in the United States. Health Care Service Corporation is the licensee of the Blue Cross and Blue Shield Association for five states. It concentrates its operations in Illinois, Montana, New Mexico, Oklahoma, and Texas.

  4. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

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

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

    Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888.Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future.

  6. From PPO to HMO, what's the difference between the 5 most ...

    www.aol.com/news/ppo-hmo-whats-difference...

    From PPO to HMO, what's the difference between the 5 most common types of health insurance plans? MB Boucai, Data Work By Dom DiFurio October 23, 2024 at 11:45 AM

  7. 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 ...

  8. 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 ...

  9. Wellmark Blue Cross Blue Shield - Wikipedia

    en.wikipedia.org/wiki/Wellmark_Blue_Cross_Blue...

    Wellmark is headquartered in downtown Des Moines and Sioux Falls. It has 1707 employees in Iowa and 171 in South Dakota. [5] It consists of Wellmark Blue Cross and Blue Shield of Iowa, Wellmark of South Dakota, Inc. (doing business as Wellmark Blue Cross and Blue Shield of South Dakota) and Wellmark Health Plan of Iowa, Inc. [5] The Wellmark Foundation is a private foundation to support health ...

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