UnitedHealth Group Incorporated was founded under the name Charter Med Incorporated in 1974 in Minnesota.
UnitedHealthCare Corporation was created in 1977 to reorganize the company and became the parent company of Charter Med.
In 1995 the company acquired The MetraHealth Companies Inc, which was a group health care provider, for $1.65 billion.
UnitedHealth Group began to acquire more companies and add more segments to their health coverage. For example, Oxford Health Plans was acquired in 2004 and became UnitedHealth’s New York-based small group contract product.
In 2005 UnitedHealth acquired PacifiCare health Systems for $9.2 billion.
By the company’s 2011 reorganization, it had 13 different operating segments and brand names. In 2011 the company reorganized to retire the brands adopted following acquisitions and adopt the unified UnitedHealthcare brand.
Today UnitedHealth Group is the largest single health carrier in the United States. Through all of its subsidiaries and divisions, the company serves about 70 million people nationwide.
UnitedHealth trades publicly on the New York Stock Exchange under the symbol UNH, is a member of the S&P 500, has 133,000 employees, and had $101.862 billion in revenue in 2011.