 Naval Hospital in Newport, Rhode Island.Two years later Oldendorf left the Navy to complete a fellowship in neurology at the University of Minnesota Hospitals in Minneapolis, Minnesota; for this reason, he was subsequently certified by the American Board of Psychiatry and Neurology as a diplomate in both specialties.In 1956, Oldendorf joined the faculty of the new medical school at the University of California, Los Angeles and the staff of the nearby UCLA-affiliated West Los Angeles Veterans Administration Medical Center.