Matt Stiefel, M.S., M.P.A., directs the Center for Population Health in Kaiser Permanente’s (KP) Care Management Institute (CMI). He was a 2008-09 fellow with the Institute for Healthcare Improvement (IHI), and continues as a faculty member for various IHI initiatives, including 100 Million Healthier Lives. Mr. Stiefel joined KP in 1981 as a medical economist, and later held management positions in KP Northwest, directing planning, marketing, and medical economics. He joined the Care Management Institute as the director of measurement in 1998 and became the associate director of CMI in 2000. Prior to KP, he served as a policy analyst on the Carter Administration Domestic Policy Staff and in the U.S. Department of Health, Education and Welfare, and as a local health planner in the San Francisco Bay Area. Mr. Stiefel completed an M.S. in epidemiology from the Harvard School of Public Health in 2013, holds an M.P.A. from the Wharton School of the University of Pennslyvania, and a B.A. in psychology from Stanford University.