Attending Physician to Inpatients, The New York Hospital-Cornell Medical Center, 1984-present.

Associate Attending Physician to Inpatients, New York Hospital, 1977-1984.

Assistant Attending Physician to Inpatients, New York Hospital, 1971-1977.

Attending Physician, The French Hospital, 1965-1974.

Assistant Attending Physician (for Special Service), The Mount Sinai Hospital, 1966-1971.

Associate Attending Physician in Community Medicine, The Mount Sinai Hospital, 1966-1971.

Associate Director of Ambulatory Care, The Mount Sinai Hospital, 1966-1968.

Associate Attending Physician, University Hospital, 1965-1966.

Assistant Visiting Physician, Bellevue Hospital, 1965-l966.

Associate Attending Physician, The French Hospital, 1963-1965.

Physician to Outpatients, New York Hospital, 1961-1965.

Assistant Attending Physician, The French Hospital, 1961-1963.

Trainee, United States Public Health Service, Infectious Disease, Cornell University Medical College, 1959-1963.

Assistant Resident, Medicine, Bellevue Hospital, 3rd Medical Division, 1958-1959.

Captain, United States Army Medical Corps, Chief of Medical Service, 60th Station Hospital, France, 1956­1958.

Assistant Resident, Medicine, Bellevue Hospital, 3rd Medical Division,1955-1956.

Intern, Medicine, Bellevue Hospital, 3rd Medical Division, 1954-1955.