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Wellmark Blue Cross Blue Shield is a mutual insurance in the United States with more than two million members in Iowa and South Dakota. It is the dominant health insurance in Iowa. It is an independent licensee of the Blue Cross Blue Shield Association. Founded in 1939, Wellmark offers dental and health insurance as well as life insurance. It has not participated in the health care exchange. ==History== In 1939, 'Hospital Service Incorporated of Iowa' (later known as Blue Cross of Iowa) began business in Des Moines, Iowa. That same year, 'Associated Hospital Services Incorporated' (later known as Blue Cross of Western Iowa and South Dakota) was established in Sioux City, Iowa. In 1945, Iowa Medical Service (later known as Blue Shield of Iowa) was formed. In 1948, Associated Hospital Services began doing business in South Dakota and marketing activities as Blue Cross. In 1956 'South Dakota Medical Service' began doing business in South Dakota as South Dakota Blue Shield.〔 In 1986, Blue Cross and Blue Shield of Iowa purchased Benefit Administrators of America, Inc., a third-party administrator, which was the plans' first for-profit venture. Benefit Administrators of America was renamed Wellmark Administrators, Inc. in 1997.〔 In 1989, Blue Cross of Iowa, Blue Shield of Iowa and Blue Cross of Western Iowa and South Dakota merged to form 'IASD Health Services Corporation'. In 1991, IASD Health Services Corporation became a mutual insurance. In 1994, Blue Cross Blue Shield (BCBS) allowed its licensees to be for-profit corporations,〔 (Coordinated Issue Paper – Blue Cross Blue Shield/Health Insurance; Life Insurance: Conversion of nonprofit corporations ). 4 June 2008)〕 and the joint service agreement of Blue Cross of South Dakota and South Dakota Blue Shield expired, putting the two plans in competition with one another.〔 In 1996, Blue Shield of South Dakota merged into IASD to form a single company. Blue Cross of South Dakota and South Dakota Blue Shield merged into 'South Dakota Health Services Company' doing business as Blue Cross Blue Shield of South Dakota. In 1997, the companies were branded as Wellmark Blue Cross and Blue Shield of Iowa and Wellmark Blue Cross and Blue Shield of South Dakota.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wellmark Blue Cross Blue Shield」の詳細全文を読む スポンサード リンク
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