From 2003 to 2019, Ralph Muller served as chief executive officer of the University of Pennsylvania Health System (UPHS)‚ a world-renowned academic medical center-based health system with 38,000 staff caring for more than 5 million patients annually. Prior to joining UPHS, he was, from 1985 to 2001, the president of the University of Chicago Hospitals and Health System. In 2001-02, he was a visiting fellow at the Kings Fund in London, UK. Mr. Muller has served on the boards of several national health care organizations. He is a director of the National Committee for Quality Assurance (NCQA),Vizient and ECRI. He has served as commissioner on the Medicare Payment Advisory Commission (MedPAC), commissioner of The Joint Commission (TJC), chairman of the Association of American Medical Colleges (AAMC), chairman of the Council of Teaching Hospitals and Health Systems (COTH), chairman of the University HealthSystem Consortium (UHC) and chairman of the National Opinion Research Center at the University of Chicago (NORC). Mr. Muller received his bachelor's degree in economics from Syracuse University and a master's degree in government from Harvard University.