Robert Singer is a retired information technology professional and an environmental activist living in southern California. In 1995 he and his cousin Adam D. Singer founded IPC The Hospitalist Company, Inc., where he served as chief technology officer. Today the company manages more than 130 practice groups, providing care in some 300 medical facilities in 18 states. Prior to that he was president of Useful Software, a developer and publisher of business and consumer software for the personal computing Industry.