Our Providers Michael B. Stubbs, M.D. Michael B. Stubbs, M.D. is a longtime DeKalb Medical physician having served on many DeKalb Medical committees, and has been the chief of thoracic surgery since 1991 and practiced in the department of surgery since 1981. He has been a member of the American Board of General Surgery since 1980 and American Board of Thoracic Surgery since 1982. Dr. Stubbs earned his MD from Emory University School of Medicine as well as completed his training in the specialty of Thoracic and Cardiovascular surgery at the Medical College of Georgia in Augusta.