Dr. David R. Lichtenstein has 31 years of experience in the fields of Internal Medicine and Gastroenterology. He earned his BA from the University of Pennsylvania and his MD from Perelman School of Medicine at the University of Pennsylvania. After completing an internship and resideny in Internal Medicine at Duke University Medical Center, he went on to complete fellowships in Gastroenterology and Interventional Endoscopy at Beth Israel Deaconess Medical Center and Duke University Medical Center, respectively. Today, this expert is board-certified in Internal Medicine and Gastroenterology by the American Board of Internal Medicine. Formerly, he served as an Assistant Professor of Medicine at the Boston University School of Medicine and as a Gastroenterologist at Jamaica Plain VA Medical Center and Quincy Medical Center. He currently serves as the Director of the Endoscopy Program and as an Attending Physician in the Gastroenterology Section at Boston Medical Center. He also serves as an Clinical Professor of Medicine at the Boston University School of Medicine.