Health Care Service Corporation

Health Care Service Corporation (HCSC), is the largest customer-owned health insurance company in the United States. HCSC offers a wide variety of health and life insurance products and related services, through its operating divisions and subsidiaries; including Blue Cross and Blue Shield of Illinois , Blue Cross and Blue Shield of New Mexico , Blue Cross and Blue Shield of Oklahoma , Blue Cross and Blue Shield of Texas , and Dearborn National. The company employs more than 18,000 people and serves more than 13 million members.

History [edit]

Founded in 1936, HCSC operated as Blue Cross and Blue Shield of Illinois until 1998, when it merged with Blue Cross and Blue Shield of Texas. In 2001, HCSC acquired Blue Cross and Blue Shield of New Mexico; and in 2005, it merged with Blue Cross and Blue Shield of Oklahoma. In September 2012, it was announced that Blue Cross and Blue Shield of Montana would join HCSC as its 5th member plan contingent on approval from the Department of Insurance.