Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Covenant Children’s NICU Caregivers Assist with Hurricane Harvey Evacuation

Covenant Children’s NICU Caregivers Assist with Hurricane Harvey Evacuation

| Contributor: kcbd Read More
Systems Embark on Making Health Care 'Friendly' for the Elderly

Systems Embark on Making Health Care 'Friendly' for the Elderly

| Contributor: Catholic Health World Read More
St. Joseph Hoag Health Hospitals Rank Among California's Best in Latest U.S. News & World Report's Listings of Best Hospitals

St. Joseph Hoag Health Hospitals Rank Among California's Best in Latest U.S. News & World Report's Listings of Best Hospitals

| Contributor: U.S. News & World Report Read More

Here you can find news articles and press releases from St. Joseph Health and it's locations.

About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Giving back to the community. St. Joseph Health System Office

Elmer Y. Chang, MD

4.8 out of 5
Specialty
  • Gastroenterology
Additional Language Spoken
Mandarin Chinese, Taiwanese
Address
27871 Medical Center Dr.
Suite 200
Mission Viejo, CA 92691

Primary Office

Address
27871 Medical Center Dr.
Suite 200
Mission Viejo, CA 92691
Get Directions
Phone
(949) 364-5090
Fax
(949) 364-5427

Secondary Office

Address
St. Joseph Health Medical Group
1476 Professional Dr.
Suite 504
,

More Information

Medical Groups & Affiliations
  • Mission Heritage Medical Group
  • Mission Hospital Affiliated Physicians
  • Specialties & Education

    Specialties & Education

    Primary Specialties
    • Gastroenterology
    Education
    • Medical School
      Northwestern University School of Medicine
    • Internship
      Baylor College of Medicine - Houston, TX
    • Residency
      Baylor College of Medicine - Houston, TX
    • Fellowship
      UCSF Medical Center at Parnassus - 2008
    • Fellowship
      UCLA Medical Center - 2007
  • Biography

    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.

  • 24-Jul-2017
    Dr Chang is excellent in all aspects of the care he provides.
    23-Jul-2017
    *Dr. Elmer Chang is an exceptional doctor who really seems to care.
    28-May-2017
    Good.
    26-May-2017
    Dr. Chang is exceptional in his detective like approach to the medical problem and will spend the time needed and not rush. As one RN who works in procedures area said about him, "Can be late but worth the wait." Highest marks for Dr. Chang.
    23-May-2017
    *Dr. Chang is precise, efficient, caring.
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