Dr. Martin Klahr is a gastroenterologist in Staten Island, New York and is affiliated with multiple hospitals in the area, including JFK Medical Center and Robert Wood Johnson University Hospital. He received his medical degree from State University of New York Downstate Medical Center College of Medicine and has been in practice for 30 years. He is one of 27 doctors at JFK Medical Center and one of 31 at Robert Wood Johnson University Hospital who specialize in Gastroenterology.