Joseph Ahn, MD, MS, MBA, FACG, is a hepatologist at Endeavor Health in Chicago, Illinois. He serves as the Division Chief of Gastroenterology and Hepatology. Dr. Ahn is Board Certified in Internal Medicine, Gastroenterology, and Transplant Hepatology. He received his medical degree from Northwestern University and completed his residency in internal medicine at the University of Chicago. He trained at Northwestern University as a fellow in hepatology and gastroenterology. As a hepatologist, he treats patients with chronic liver diseases. His research interest is focused on hepatitis B, hepatitis C, and MASLD.