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Elmer Chang, MD

4.9 out of 5 (98 Ratings)
Specialty
  • Gastroenterology
    (Board Certified)
Languages
Hokkien, Chinese - Mandarin, English
Primary Address | Office Details
27799 Medical Center Road
Suite 310

Mission Viejo, CA 92691

Phone: (949) 364-5090

Fax: (949) 364-5427

Networks of Participation
  • Mission Heritage Medical Group
  • Mission Hospital Affiliated Physicians
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to Your Provider
(949) 364-5090
  • Great doctor responsive resowctive and he make me feel important and he cars fir my health
    Dr. Chang is kind and friendly and very knowledgeable. The office is a well oiled machine.
    Everyone in the office is very friendly and professional and Dr. Chang is the BEST!
    Everyone from the doctors to the office staff at Mission Heritage have been extremely professional and pleasant to deal with. Very glad I signed on with this group.
    Dr. Chang is always very attentive to my problems and tries the best way he can to solve them.
    31 Total Comments Page 1 2 3 4 5 6 7   Next
  • Meet The Provider
    Biography

    Dr. Chang is a Board Certified Gastroenterologist who specializes in the evaluation and management of disorders of the gastrointestinal tract, pancreas, bile duct, and liver.

    He performs upper endoscopy and colonoscopy to screen for, diagnose, and treat a variety of gastrointestinal diseases and cancers.

    He also has expertise in several advanced endoscopic techniques including endoscopic retrograde cholangiopancreatography (ERCP), a procedure that is used to manage stones, strictures, and malignant obstruction of the bile duct. He is fluent in English, Mandarin, and Taiwanese.

    Dr. Chang graduated with degrees in molecular biology and economics from the Northwestern University, and received his medical degree from the Northwestern University Medical School. After finishing residency training in Internal Medicine from the Baylor College of Medicine, he completed a fellowship in gastroenterology and hepatology at the UCLA School of Medicine.

    During his fellowship, Dr. Chang was recruited into the Specialty Training and Advanced Research program at UCLA, where he conducted research in gut immunity and inflammatory bowel disease. In recognition of this research, he was granted a philosophical doctorate degree from the Department of Microbiology, Immunology, and Molecular Genetics at UCLA.

    He also received several awards for this work, including grants from the National Institute of Health and the Crohn's and Colitis Foundation of America.

    Following his fellowship training at UCLA, Dr. Chang pursued another year of advanced endoscopic fellowship at the UCSF School of Medicine, where he developed expertise in therapeutic ERCP, endoscopic ultrasound, gastrointestinal stricture remediation, and other advanced endoscopic procedures.

    Dr. Chang has published numerous abstracts and articles in the field of gut immunity, inflammatory bowel disease, and pancreaticobiliary disorders in peer-reviewed journals such as Gastroenterology, Journal of Clinical Investigation, and Journal of Immunology.

    He is a member of the American Gastroenterology Association, American Society of Gastrointestinal Endoscopy, American College of Gastroenterology, and American Medical Association.

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    Primary Specialties
    Primary Specialties
    • Gastroenterology
      (Board Certified)
    Other Specialties Associations Awards
    Awards
    National Institute of Health Grant Crohn's and Colitis Foundation of America Grant
    Areas of Interest
    Areas of Interest

    Colon cancer screening
    Heartburn or acid reflux
    Peptic ulcer disease
    Inflammatory bowel disease

    Certifications
    Board Certifications

    American Board of Internal Medicine, Gastroenterology

    Education
    Education & Training
    • Medical School
      Northwestern University School of Medicine
    • Internship
      Baylor College of Medicine
    • Residency
      Baylor College of Medicine
    • Fellowship
      UCSF Medical Center at Parnassus - 2008
    • Fellowship
      UCLA Medical Center - 2007
  • Insurance Accepted

    Insurance Accepted

    Insurance Plan

    • Aetna HMO
    • Aetna Medicare Advantage PPO
    • Aetna PPO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross Medicare Advantage
    • Anthem Blue Cross PPO
    • Blue Shield of CA HMO
    • Blue Shield of CA HMO – Trio
    • Blue Shield of CA Medicare Advantage
    • Choice /Humana PPO
    • Cigna HMO
    • Cigna HMO – Select
    • Cigna PPO
    • Clever Care Health Plan
    • First Health/Coventry PPO
    • Health Net - TriCare
    • Health Net Medicare Advantage
    • Health Net PPO
    • Health Smart PPO
    • Multiplan PPO
    • Oscar EPO
    • SCAN Medicare Advantage
    • United Healthcare Medicare Advantage
    • Vivity by Anthem Blue Cross
 
  • Primary Location

Mission Heritage Mission Viejo - Gastroenterology