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
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.