Dr. James J. Lee is accepting new patients!


Dr. James J. Lee has a private practice located in Orange, California and is a clinical assistant professor at the University of California, Irvine. In the last two decades, Dr. Lee has been involved in numerous endoscopic treatments of heartburn. Additionally, he has performed more than 75 radio-frequency ablation procedures for Barrett’s Esophagus with dysplasia, as well as EMRs. Dr. Lee contributes regularly to Becker’s ASC review and his most recent article was quoted in Men’s Health Journal in 2015. After receiving his medical training at St. Louis University School of Medicine, Dr. Lee completed his residency and fellowship training at the University of California, Irvine. He is married and has one child in college. On his days off, he enjoys tennis, hiking, and traveling. One of Dr. Lee’s future goals is to establish a heartburn center at St. Joseph Hospital and raise awareness for esophageal cancer.

Treatment Philosophy
I have always been fascinated with the world of medicine, particularly with how medical practitioners can truly make a big difference in the lives of people. Digestive system-related disorders are common, and I enjoy helping people overcome their ailments and enjoy life anew.
Specialties and Services
  • Capsule Endoscopy
  • Colonoscopy
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Motility/High Resolution Esophageal Manometry
  • Upper Endoscopy
  • HET (Hemorrhoid Electro Therapy)
  • Single Balloon Enteroscopy
  • Halo 90 and 360
  • PEG (Percutaneous Endoscopic Gastrostomy)
  • EMR (Endoscopic Mucosa Resection)
  • Stents (colonic or esophageal or biliary)– These help patients with blockage avoid surgery
  • Treatment of Hepatitis due to Hep A, B, as well as C, Autoimmune, PBC, PSC.
  • Management of Cirrhosis, Liver failure, Alcoholic Hepatitis.
  • Bravo pH Measurement
  • Online Video Visits
Online Video Visits
Dr. James J. Lee is able to offer online tele-health services for patients who want to see or speak to the provider from the comfort of their home. Please contact our office at 714.835.7700 to schedule an appointment.
  • English
  • Korean
Education & Training
  • Fellowship: Advanced Endoscopy, University of California, Irvine
  • Fellowship: Gastroenterology, University of California, Irvine
  • Residency: Internal Medicine, University of California, Irvine
  • Internship: Internal Medicine, University of California, Irvine
  • MD: St. Louis University School of Medicine, St. Louis, Missouri
Professional Affiliations
  • American Gastroenterological Association (AGA)
  • American College of Gastroenterology
  • Orange County Gastroenterological Society
  • American Medical Association
  • Fellow of American Gastroenterology Association
  • American College of Physicians
Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583