Public Health Consultant
United States Postal Service
2009
Present
Former Science Advisor to the Secretary
U.S. Department of Health and Human Services
1996
2009
Principal Deputy Assistant Secretary for Public Health Emergency Preparedness
U.S. Department of Health and Human Services
1986
1991
Principal Deputy Assistant Secretary for Planning and Evaluation
U.S. Department of Health and Human Services
Science Advisor
Office of the Secretary
U.S. Department of Health and Human Services
Assistant Secretary for Planning Policy and Evaluation
U.S. Department of Health and Human Services
Science Advisor to the Administrator
U.S. Environmental Protection Agency
Special Assistant for Health Affairs
Office of Science and Technology Policy
The White House
Acting Director
National Institutes of Health
Deputy Director for Extramural Research
National Institutes of Health
Associate Director for Extramural Research and Training
National Institutes of Health