WellPoint, Inc. NYSE: WLP is America's largest health insurer. WellPoint, Inc. was formed in late 2004 from the merger of Anthem and WellPoint Health Systems. The company owns the Blue Cross Blue Shield companies in 14 states.

In 11 states, the company uses the Anthem Blue Cross and Blue Shield brand (Maine, New Hampshire, Connecticut, Virginia, Wisconsin, Indiana, Ohio, Kentucky, Missouri, Colorado, Nevada). Other WellPoint "Blues" are Blue Cross Blue Shield of Georgia, Empire Blue Cross Blue Shield (southern New York) and Blue Cross of California. WellPoint also operates non-Blue insurance companies Unicare and HealthLink; Lumenos, a consumer-driven healthcare company; and Medicare services companies AdminaStar Federal and United Government Services. The company is headquartered at Monument Circle in Indianapolis, IN, which was Anthem's pre-merger headquarters. WellPoint's pre-merger headquarters were in Thousand Oaks, CA. William Henry Trotter Bush, uncle of President George W. Bush, serves on the board of directors of WellPoint.