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11370 Anderson St# 3625Loma Linda, CA 92354
Phone+1 909-558-2850
Fax+1 909-558-2424
Dr. Chang is on Doximity
As a Doximity member, you’ll join more than three million U.S. healthcare professionals—including 85+% of physicians, and 2/3 of all NPs and PAs—in a private, secure network.
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- Read the latest clinical news, personalized to your specialty.
Education & Training
Loma Linda University Health Education ConsortiumFellowship, Gastroenterology, 1993 - 1996
Loma Linda University Health Education ConsortiumResidency, Internal Medicine, 1990 - 1993
Loma Linda University School of MedicineClass of 1990
Certifications & Licensure
CA State Medical License 1991 - 2027
American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification MedInformatix Complete EHR, MedInformatix, 2011, 2015
- CMS Meaningful Use Stage 1 Certification MedInformatix, MedInformatix, 2011, 2015
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011
Publications & Presentations
PubMed
- A Pilot Feasibility Study of PAL-CHW-PDAC, a Digitally Enhanced Community Health Worker-Led Intervention to Facilitate Stepped Palliative Care in Patients with Pancrea...Nikhil R Thiruvengadam, Maud Celestin-Joachim, Lizbeth Rivas, Nishita Matangi, Arman Bahmani
Journal of Palliative Medicine. 2026-09-01 - Prevalence and Clinical Correlates of Psychiatric Disorders in a Hispanic-Majority Inflammatory Bowel Disease Cohort.Matthew Orosa, Mindy Xu, Andrew Chang
Cureus. 2026-05-01 - Emergency Department Utilization and Outpatient Care Continuity Among White and Hispanic Patients With Inflammatory Bowel Disease at a County Health System.Matthew Orosa, Andrew Chang
Cureus. 2026-01-01
Press Mentions
American College of Gastroenterology, Oct. 21-26November 2nd, 2022
New Tools in Battle Against Deadly DiseaseSeptember 23rd, 2019
Scholars Receive Clinical Research Training AwardsOctober 9th, 2017
Professional Memberships
- Member
- Fellow
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