Steven B. Cohen, Ph.D., is Director, Center for Financing, Access, and Cost Trends at the Agency for Healthcare Research and Quality (AHRQ). Dr. Cohen directs a staff of health economists, statisticians, social scientists, clinicians and support staff conducting intramural and supporting extramural research on behalf of the Agency. He also directs activities necessary to conduct and support a wide range of studies related to the cost and financing of personal health care services. Studies include analyses of health care use and expenditures by individuals and families for personal health care services, the sources of payment for health care, the availability and cost of health insurance, and health status, outcomes and satisfaction. Dr. Cohen also leads the Center's administration of surveys and development of large primary data sets, including the Medical Expenditure Panel Survey (MEPS), to support health care policy and behavioral research and analyses. Dr. Cohen has authored over 100 journal articles and publications in the areas of biostatistics, survey research methodology, estimation, survey design and health services research. He has also co-authored the text, Methodological Issues for Health Care Surveys. Dr. Cohen has served as an Associate Professor in the Department of Health Policy and Management at the Johns Hopkins University and the Department of Health Services Administration at the George Washington University. He received his Ph.D. in Biostatistics from the University of North Carolina at Chapel Hill, and is a Fellow of the American Statistical Association.