A former Bloomingdale physician, George S. Amsden, was appointed the first psychiatrist-in-chief (1932–1935). In 1936, a protégé of Adolph Meyer, Oskar Diethelm, succeeded Amsden and ran the clinic for the next 26 years. Diethelm was followed by William Lhamon (1962–1974), Robert Michels (1974–1991), William A. Frosch (1991–1993), and Jack D. Barchas, who has been psychiatrist-in-chief since 1993. Under their leadership the Payne Whitney Psychiatric Clinic developed into one of the nation's leading academic psychiatric centers.