- Visiting Senior Fellow, Health Policy Studies and AEI-Brookings Joint Center for Regulatory Studies, 2006-2008
- Associate Professor of Economics and of Medicine, Stanford University, 1995-present
- Administrator, Centers for Medicare and Medicaid Services, 2004-2006
- Commissioner, Food and Drug Administration, 2002-2004
- Member, President’s Council of Economic Advisers and Senior Director for Health Care, White House, 2001-2002
- Member, Institute of Medicine, 2003-present
- Research Associate, National Bureau of Economic Research, 1995-2001, 2006-present
- National Fellow, Hoover Institution, Stanford University, 2000-2001
- Director, Program on Health Outcomes Research, Center for Health Policy and Center for Primary Care and Outcomes Research, Stanford University, 1999-2001
- Associate Editor, Journal of Health Economics, 1998-2001
- Deputy Assistant Secretary for Economic Policy, U.S. Department of the Treasury, 1998-1999
Ph.D., Economics, Massachusetts Institute of Technology
M.D., Harvard University-Massachusetts Institute of Technology Division of Health Sciences and Technology
M.P.A., Harvard University
B.A., University of Texas at Austin