Dr. Raj Dasgupta is an ABIM Quadruple board-certified physician specializing in internal medicine, pulmonology, critical care, and sleep medicine. He practices at the University of Southern California, where he is an associate professor of clinical medicine, assistant program director of the Internal Medicine Residency Program, and the associate program director of the Sleep Medicine Fellowship. Dr. Dasgupta is an active clinical researcher and has been teaching around the world for more than 20 years.