John Markowitz
John C. Markowitz (born 1954 in New York City) is an American physician and psychiatrist. He is a Professor of Clinical Psychiatry at the Columbia University College of Physicians and Surgeons and a Research Psychiatrist at the New York State Psychiatric Institute.
For decades he has studied psychotherapies and medications to treat mood disorders (major depressive disorder and dysthymia), anxiety disorders, and personality disorders, and more recently PTSD. He is best known for his work on interpersonal psychotherapy (IPT), a manualized treatment he learned from Gerald L. Klerman.
Markowitz is a graduate of Columbia University and Columbia University College of Physicians and Surgeons, and he completed his psychiatric residency at the Payne Whitney Psychiatric Clinic of Cornell University Medical School/New York-Presbyterian Hospital.
This page was last edited on 2 February 2026, at 15:43 (CET).