Marshall H. Chin, MD, MPH, FACP, Director of the DRTC Prevention and Control Core, Associate Director of the Robert Wood Johnson Clinical Scholars Program, and Associate Professor of Medicine, is a general internist who seeks to improve the care of vulnerable patients with diabetes. Dr. Chin and his colleagues from a consortium of 70 community health centers in the Midwest are currently funded by the Agency for Healthcare Research and Quality (AHRQ) and Robert Wood Johnson Foundation to improve the quality of diabetes care in health centers that serve the indigent. This multifactorial, community-based intervention includes rapid quality improvement, chronic disease management, provider training in behavioral change, and patient empowerment interventions. For his work with community health centers, Dr. Chin received the 2001 National Association of Community Health Centers Innovative Research in Primary Care Award. Dr. Chin also focuses on geriatric diabetes issues, and he is funded by the National Institute on Aging to assess the treatment preferences of older patients with diabetes. He uses chart review, survey, Medicare claims analysis, utility assessment, and qualitative methods in his research. He is a member of the AHRQ Health Care Quality and Effectiveness Research Study Section. Dr. Chin is currently Associate Editor for an upcoming issue of the Journal of General Internal Medicine devoted to community-based participatory research.