Matthew H. Liang is a physician specializing in social rheumatology, Professor of Medicine at Harvard Medical School, Professor of Health Policy and Management at Harvard School of Public Health, and the Director of Special Projects of the Robert B. Brigham Arthritis and Musculoskeletal Diseases Clinical Research Center which he founded. At the Brigham and Women's Hospital he is Medical Director of Rehabilitation Services. He is a founding faculty of the Division of General Internal Medicine and Primary Care at the Brigham and Women's Hospital and a founding faculty of the Clinical Effectiveness Program at the Harvard School of Public Health and is a Study Director in the Veterans Administration Cooperative Studies Program.