RISK ASSESSMENT
500 Superior Avenue, Suite 100
Newport Beach, CA 92663
(949) 764-8379
Digestive Health Institute
As a national leader in digestive care and the top-ranked Gastroenterology and GI Surgery center in OC, Hoag provides expert care across the full spectrum of digestive disease. Patients have access to a host of groundbreaking technologies, world-class specialists, clinical trials, diagnostics & imaging, and advanced interventional therapeutics.
Explore our programs
Advanced Endoscopy
Delivering precise diagnosis and treatment for complex digestive diseases and cancers using advanced imaging and interventional techniques.
Bariatric Surgery and Weight Loss
A nationally accredited program offering personalized weight loss and metabolic care with support in nutrition, exercise, and mental health.
Colorectal
Comprehensive prevention and treatment for colorectal and bowel conditions, including cancer, from a team of expert specialists.
Foregut (Esophagus & Stomach)
Integrated medical and surgical expertise for advanced care of esophageal and stomach disorders.
Liver Program
Coordinated, innovative care for every stage of liver disease, from diagnosis through treatment and recovery.
Inflammatory Bowel Disease (IBD)
Multidisciplinary care to help patients with Crohn’s, colitis, and related conditions restore health and quality of life.
When you need unparalleled expertise.
Top Hospital in OC for Gastroenterology & GI Surgery
Hoag has been ranked high performing nationally by U.S. News and World Report for Gastroenterology & GI Surgery for 2025-2026. In addition, Hoag was ranked the #4 hospital in the Los Angeles Metro Area and the #9 hospital in California, and is the only Orange County hospital in the top 10.
Our team is made up of nationally renowned physicians specializing in digestive care.
Jennifer Phan, MD
Medical Director, Hoag Irvine Advanced Endoscopy, Director of Bariatric Endoscopy, Gastroenterologist
Kenneth J. Chang, MD
Executive Medical Director, Hoag Digestive Health Institute
Phuong T. Nguyen, MD
Medical Director of Hoag Advanced Endoscopy Center, Gastroenterologist
Patient Testimonial Carousel
“My life has been extended. I don’t know what would have happened had I not gone to Dr. Chang at the Digestive Health Institute. My life changed because of him. For sure.”
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