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Dr. John Lee, UCI Health gastroenterologist

John G. Lee, MD



Clinical Interests

endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), enteral stenting, interventional endoscopy, removal of large polyps

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  • American Board of Internal Medicine, Gastroenterology [Internal Medicine]
  • American Board of Internal Medicine, Internal Medicine - General
  • English
Medical School
University of Miami School of Medicine
Jackson Memorial Hospital-MiamiGeneral Internship
Wadsworth VA Medical CenterInternal Medicine Residen
Duke University School of MedicineGastroenterology Fellowsh
Professional Positions
  • Associate Director — H.H. Chao Comprehensive Digestive Disease Center
  • Director of Pancreaticobiliary Services — UC Irvine Medical Center
  • Professor — Division of Gastroenterology & Hepatology, Department of Medicine
Awards and Recognition
  • America's Top Doctors (Colon Cancer, Endoscopy, Gastrointestinal Disorders, Pancreatic Disease), Castle Connolly Medical Ltd.
  • Best Doctors in America® — Gastroenterology, 2008-2013, 2015, 2016
  • Physicians of Excellence, Orange County Medical Association — 2013-2023
  • Best Teacher Award
  • Super Doctors™ of Los Angeles County
More Information

Dr. John G. Lee is a UCI Health gastroenterologist who specializes in the diagnosis and treatment of disorders of the pancreas and biliary tract using minimally invasive techniques, including interventional endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP).

Lee also is skilled in the treatment of gastrointestinal bleeding and the removal of difficult and large colonic polyps. He is involved in the research of outcomes of gastrointestinal endoscopy and is the author of numerous publications.

Lee earned his medical degree from the University of Miami’s Miller School of Medicine in Miami, Fla. He completed an internship in internal medicine at Jackson Memorial Hospital in Miami, followed by an internal medicine residency at Wadsworth VA Medical Center in Los Angeles. He completed a fellowship in gastroenterology at Duke University School of Medicine in Durham, N.C. Before coming to UC Irvine Medical Center, he was an associate professor at UC Davis School of Medicine.

Although Dr. Lee's primary patient base is adult, he performs endoscopic retrograde cholangiopancreatography (ECRP) on pediatric patients.

Speakers Bureau Topics

  • Colon Cancer
  • Endoscopy
  • Gastrointestinal (GI) Bleeding
  • Pancreatitis
  • Reflux, Treatment
  • Therapeutic Endoscopic Retrograde Cholangiopancreatography (ECRP)

UCI Health Chao Family Comprehensive Digestive Disease Center
101 The City Drive South, Building 22C
Orange, CA 92868
Fax: 855-813-0240