Mark Eisner, MD is board certified by the American Board of Internal Medicine in Gastroenterology and Internal Medicine. He attended George Washington School of Medicine in Washington DC and completed his fellowship at Georgetown University Medical Center. Dr. Eisner is the head of the Florida Medical Clinic Orlando Health Department of Gastroenterology and also serves on the Florida Medical Clinic Orlando Health Board of Directors. He serves as the Endoscopy Medical Director at the Zephyrhills Special Procedures Surgery Center. Dr. Eisner specializes in a variety of GI conditions, including Gastroesophageal Reflux Disease, Hepatology, Hepatitis C and Colorectal Cancer. His office is located in Zephyrhills and he is accepting new patients