Jack Chang-Chieh Feng, MD

Dr. Jack Feng is a gastroenterologist who specializes in digestive health and disorders of the gastrointestinal system. He earned his medical degree from Ohio State University and completed his internship and residency at U.C. Irvine Medical Center in 1997 and 1999, respectively. Dr. Feng furthered his expertise through a fellowship at UCLA in 2002, where he gained advanced training in gastroenterology. With three decades of experience in his field, he brings extensive knowledge to patient care. Dr. Feng speaks English and serves patients throughout the community.

He is affiliated with Providence Mission Hospital and practices at the Providence Center for Digestive Health in Mission Viejo, California. Dr. Feng treats patients with colon polyps, diverticular disease, and diverticulosis. His procedural expertise includes performing colonoscopies and lower gastrointestinal endoscopy procedures. He also conducts pathology tests to help diagnose digestive conditions. Patients have given …Dr. Feng an average rating of 4.4, reflecting their confidence in his care.