Aaron Beck, emeritus professor in the department of psychiatry at the Perelman  School of Medicine at the University of Pennsylvania and the director of the Aaron T. Beck Psychopathology Research Center was named fourth in a list of the “25 Most Influential Physicians in the Past Century” by Medscape.

Dr. Beck is known as “the father of cognitive therapy.”

Other physicians with Penn connections who made the list include Stanley Dudrick, 20th on the list, who conducted pioneering research on the development of total parenteral nutrition in the laboratory of Jonathan Rhoads while working as a research fellow and surgical resident at the School of Medicine; and Stanley Prusiner, C’64, M’68, 21st on the list, who is winner of the 1997 Nobel prize in physiology or medicine.