Contact Info | History & Mission | Physician Profiles | Career Opportunities Greg D. Smith, M.D. Dr. Smith graduated from Vanderbilt University in Nashville, Tennessee with a B.S. degree in physics/math and then earned his medical degree at Vanderbilt University School of Medicine. After completing a residency in radiology and a fellowship in neuroradiology at Vanderbilt University Hospital, he remained at Vanderbilt as an Assistant Professor in the neuroradiology section. Board certified by the American Board of Radiology, Dr. Smith has authored/coauthored numerous publications. Dr. Smith is a member of the Radiological Society of North America and a senior member of the American Society of Neuroradiology.