Instructor, Department of Surgery
David Chang PhD, MPH, MBA, is a faculty member in the Department of Surgery Johns Hopkins School of Medicine, with joint appointment in Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health. He was trained in health services and outcomes research at the Johns Hopkins Bloomberg School of Public Health, completing his doctoral dissertation in 2004 under the guidance of Ellen J. MacKenzie, PhD, and Edward E. Cornwell, MD, and with the support of a National Research Service Award (NRSA) individual training grant. His dissertation was entitled: “Age-related variations in trauma care and implications for health care systems: Do we discriminate against the elderly?” A graduate of Cornell University with Phi Beta Kappa, Dr. Chang received his MPH and his MBA concurrently also at the Johns Hopkins University.
Following the completion of his doctoral training in the Division of Adult Trauma, Dr. Chang served as the Director for the Johns Hopkins Center for Surgical Trials and Outcomes Research (CSTOR) for the Department of Surgery from 2004 to 2006, leading the effort to establish new research centers to support clinical research activities in the Department. Dr. Chang directed the establishment of database infrastructure, and led the training of residents and the creation of a resident research team that span multiple subspecialties, to support outcomes research endeavors across multiple Divisions in the Department of Surgery. This effort led to the creation of the Center for Outcomes Research and the Center for Clinical Trials in the summer of 2006.
Dr. Chang’s main research interest is in the structure, process, outcomes, and quality of trauma care, at the hospital level as well as at the supra-hospital systems level, with particular interests in disparity in access to health care. Dr. Chang also has methodological interest in developing risk-stratification indices and outcomes prediction models, and has so far personally developed or led the development of 5 new patient risk indices in trauma surgery, vascular surgery, cardiac surgery, transplant surgery, and pediatric surgery.