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John Gunn Lee, MD, Gastroenterology, Orange, CA, UCI Health

John GunnGLeeMD

Gastroenterology Orange, CA

Advanced Endoscopic Interventional, Biliary Tract Disease, Gastrointestinal Cancer, Pancreas Disease

Professor of Medicine, UC Irvine

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Education & Training

  • Duke University Hospital
    Duke University HospitalFellowship, Gastroenterology, 1991 - 1994
  • UCLA-VA Greater Los Angeles
    UCLA-VA Greater Los AngelesResidency, Internal Medicine, 1987 - 1991
  • University of Miami Leonard M. Miller School of Medicine
    University of Miami Leonard M. Miller School of MedicineClass of 1987, MD
  • University of Miami
    University of MiamiB.S., Cum Laude, 1983

Certifications & Licensure

  • OR State Medical License
    OR State Medical License 1994 - Present
  • CA State Medical License
    CA State Medical License 1988 - 2025
  • American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

  • America’s Most Honored Professional, Top 1% Award 2016
  • Top Doctor Los Angeles Magazine, 2016
  • Top Doctor US News and World Report, 2012
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Clinical Trials

Publications & Presentations

PubMed

Journal Articles

  • Altered anatomy ERCP with spiral overtube-assisted stent placement  
    Samarasena JB, Huang JY, Chin M, Chang KJ, Lee JG, Gastrointest Endosc, 1/29/2016
  • The "PEG-Pedi-PEG" technique: a novel method for percutaneous endoscopic gastrojejunostomy tube placement (with video)  
    Samarasena J, Kwak NH, Chang K, Lee JG, Gastrointest Endosc, 1/18/2016
  • Role of serial EUS-guided FNA on pancreatic cystic neoplasms: a retrospective analysis of repeat carcinoembryonic antigen measurements  
    Nakai Y, Iwashita T, Shinoura S, Park DH, Samarasena JB, Lee JG, et al, Gastrointest Endosc, 1/6/2016
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Books/Book Chapters

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Abstracts/Posters

  • Fiducial Marker Seeds to Quantitate Interfraction Target Movement in Pancreatic Cancer Radiation Therapy
    Bahari-Kashani JN, Lee JG, Roa DE, Chang K, et al, American Society for Radiation Oncology Annual Meeting, San Diego, CA, 1/1/2010
  • Predictive value of pancreatic ductal dilation on endoscopic ultrasound diagnosis of pancreatic cancer
    Nguyen WT, Chen AM, Chen WP, Lee J et al, Gastrointest Endosc, 1/1/2007
  • Endoscopic ultrasound-guided paracentesis of the ascitic fluid
    Rooba W, Lee J, Gu M, 54th Annual Scientific Meeting of American Society of Cytopathology, Toronto, Canada, 1/8/2006
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Lectures

  • Primary Sclerosing Cholangitis 
    Orange, CA - 1/1/2016
  • CRE infection 
    Orange, CA - 1/1/2015
  • CRE and ERCP 
    Anaheim, CA - 1/1/2015
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Other

  • Treatment of GIST 
    Lee JG, Webcast
    Chicago, IL - 1/1/2011
  • Colon cancer and polyps 
    Lee JG, ACP-ASIM
    1/1/2000
  • Selective cannulation 
    Lee JG, Leung JWC, 13th Annual ACG postgraduate course
    Miami, FL - 1/1/1994
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Professional Memberships

Hospital Affiliations