Top 25 Minority Executives in Healthcare – 2006

Williams, 56, is president and chief executive officer of Aetna, the nation's third-largest health insurer. He served as executive vice president, chief of health operations and president of the Hartford, Conn.-based company before taking over as CEO. Under Williams' supervision, Aetna was the first national health insurer to launch health reimbursement arrangement and health savings account plans.