Dr. Kessler completed both residency and fellowship at Indiana University School of Medicine. He has been part of the faculty since 2006. Dr. Kessler is active in performing and teaching endoscopy. While general endoscopy makes up a substantial part of his practice, specialty aspects of his practice include esophageal motility and reflux testing as well as endoscopic therapy for Barrett's esophagus and early esophageal cancer. Dr. Kessler sees patients at 3 office locations as well as by virtual/phone visits. Dr. Kessler also has a clinical interest in diagnosis and management of Celiac Disease.