Blue Cross and Blue Shield of Texas (BCBSTX) – the only statewide, customer-owned health insurer in Texas – is the largest provider of health benefits in the state, working with nearly 80,000 physicians and health care practitioners, and 500 hospitals to serve nearly 7 million members in all 254 counties. BCBSTX is a Division of Health Care Service Corporation (HCSC), which operates Blue Cross and Blue Shield Plans in Texas, Illinois, Montana, Oklahoma and New Mexico.