Jay W Marks M.D

Dr. Jay W. Marks is a Board Certified Internist and Gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and Gastroenterology at UCLA/Cedar-Sinai Medical Center in Los Angeles.

For 20 years he was the Associate Director of the Division of Gastroenterology at Cedar-Sinai Medical Center and an Associate Professor of Medicine in residence at UCLA. At Cedar-Sinai he co-directed the Gastrointestinal Endoscopy Unit, taught physicians during their graduate and postgraduate training, and performed specialized, non-endoscopic gastrointestinal testing.

He carried out Public Health Service sponsored (National Institutes of Health) clinical and basic research into mechanisms of the formation of gallstone and methods for the non-surgical treatment of gallstones. He is the author of 36 original research manuscripts and 24 book chapters.

Dr. Marks presently directs the Gastrointestinal Diagnostic Unit, where he continues to perform specialized tests for the diagnosis of gastrointestinal diseases.