David Asher Leiman
David Asher Leiman

David Leiman

Associate Professor of Medicine


Dr. Leiman is an Associate Professor of Medicine and gastroenterologist specializing in esophageal diseases and swallowing disorders, such as eosinophilic esophagitis (EoE), motility disorders such as achalasia, and gastroesophageal reflux disease (GERD) as well as its associated complications including Barrett’s esophagus (BE). His busy clinical practice dovetails with his academic focus on health services research, including patient outcomes and clinical quality measurement. He is also a PI for several ongoing multicenter clinical trials investigating novel therapies for EoE and GERD.

Dr. Leiman has mentored numerous medical students, residents, and GI fellows on research and quality improvement projects resulting in research awards, presentations at national meetings, and peer-reviewed publications.


Associate Professor of Medicine in the School of Medicine

2023 School of Medicine

Member of the Duke Cancer Institute in the School of Medicine

2018 School of Medicine

Member in the Duke Clinical Research Institute in the School of Medicine

2017 School of Medicine


M.D. 2009

2009 Vanderbilt University, School of Medicine

Internal Medicine Residency, MEDICINE

2012 University of Pennsylvania, School of Medicine

Fellowship in Gastroenterology and Hepatology, MEDICINE

2015 University of Pennsylvania, School of Medicine

Publications, Grants & Awards