He served as president of the American Neurologic Association in 1920, the New York Neurologic Society in 1929, the American Psychopathological Society in 1932, and the Association for Research in Nervous and Mental Disorders in 1934. He was also a founder of the American Society for Clinical Investigation, and a member of the Association of American Physicians, the American Psychiatric Association, the Association for the Study of Internal Secretions, and the American Medical Association.
