Elmer Chang, MD, Gastroenterology, Mission Viejo, CA, Mission Hospital Mission Viejo


Gastroenterology Mission Viejo, CA

Esophagus Disease, Gastrointestinal Cancer, Inflammatory Bowel Disease


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Education & Training

  • UCSF
  • UCLA
  • UCLA Medical Center
    UCLA Medical CenterFELLOWSHIP
  • Baylor College of Medicine
    Baylor College of MedicineRESIDENCY
  • Northwestern University Feinberg School of Medicine
    Northwestern University Feinberg School of MedicineMEDICAL_SCHOOL

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 2001 - 2022
  • American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification NextGen Ambulatory EHR, NextGen Healthcare, 2013
  • CCFA research fellowship award Crohn's and Colitis Foundation of America, 2004-2007
  • Wyeth fellow in digestive diseases UCLA Medical Center, 2002-2004
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Publications & Presentations


  • Serial stricture dilation without pancreatic stenting is a safe and effective therapeutic strategy for the management of chronic pancreatitis-associated pancreatic duc...
    Chang EY, Begatelos KC, Buxbaum J, Niho H, Ostroff JW, Gastroenterology, 2008
  • Inoperable pancreatic cancer patients receiving contemporary chemotherapeutic regimens who have prolonged survival exhibit an increased risk of metal stent occlusion a...
    Buxbaum J, Bagatelos KC, Chang EY, Niho H, Ostroff JW, Gastroenterology, 2008
  • Mechanism of induction of inflammatory bowel disease associated gene TL1A (TNFSF15) by microbes in antigen presenting cells.
    Shin DQ, Kwan LY, Chang EY, Chang C, Saruta M, Cohavy O, Elson CO, Targan SR, Gastroenterology, 2008
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Other Languages

  • Chinese (Mandarin), Taiwanese

Hospital Affiliations