Trainee National Institutes of Health, 1973—1976. Director primary care education evaluation Johns Hopkins University School Medicine, Baltimore, 1976—1979. Director Johns Hopkins Center Pathol.
Gambling, 1979—1983; director research Washington Center Pathol. Gambling, College Park, Maryland, since 1983. Mathematics statistician Health Resources & Services Administration Bureau Health Professions, United States Public Health Service, Department of Health and Human Services, Rockville, Maryland, 1980—1986, statistician division medicine, 1988—1990, special assistant to director, 1990—1992, associate bureau director primary care policy, 1992—1994, chief workforce analysis & research, research planning, since 1994.
Program analyst Bureau Health Care Delivery Assistance, 1986—1988.