David A. Lieberman MD

Dr. David Lieberman, MD, is a nationally recognized gastroenterologist, physician-scientist, and Professor of Medicine in the Division of Gastroenterology and Hepatology at Oregon Health & Science University (OHSU). With decades of experience in clinical care, research, and academic leadership, he has made transformative contributions to the prevention, early detection, and management of colorectal cancer through pioneering work in gastrointestinal endoscopy and evidence-based screening strategies.

Throughout his career, Dr. Lieberman has led groundbreaking multicenter clinical research, shaped national colorectal cancer screening and surveillance guidelines, and held prominent leadership roles within leading gastroenterology organizations. His work has significantly influenced clinical practice worldwide, improving patient outcomes and advancing quality standards in digestive health. A dedicated educator and mentor, he remains committed to advancing gastroenterology through innovative research, medical education, and the translation of scientific evidence into exceptional patient care.