Theresa Shireman is the director of the Center for Gerontology and Health Care Research and vice-chair of the Department of Health Services, Policy & Practice, in the School of Public Health. She is a health services researcher who specializes in pharmacoepidemiology and health economic evaluations. Significant research achievements include contributions to understanding how medications are used and to what effect in people who are on chronic dialysis, development of a novel methodology to tracking medication exposure over time, development of a bleeding risk prediction model for warfarin in older adult patients with atrial fibrillation, and health economic evaluations of expensive therapeutic agents. In addition, she has managed numerous contracts with the State Medicaid agencies evaluating pharmaceutical use in children with disabilities and other vulnerable populations, examining the quality of diabetes care for people with disabilities, and creating a claims-based algorithm to distinguish between important subgroups of individuals with disabilities. She teaches graduate courses on pharmacoepidemiology, cost-effectiveness analysis, and economics of the pharmaceutical industry, and advises graduate students and clinician researchers.