Lin Chang, MD
Accepting new patients

Lin Chang, MD

  • Gastroenterology
Average rating: 5.0
| 42 ratings
Westwood Digestive Diseases | 100 Medical Plaza, Suite 205, Los Angeles, CA 90024


  • Vice Chief, Vatche and Tamar Manoukian Division of Digestive Diseases
  • Program Director, UCLA GI Fellowship Program
  • Co-Director, G. Oppenheimer Center for Neurobiology of Stress and Resilience
  • Director, Clinical Studies and Database Core, Goodman-Luskin Microbiome Center

Dr. Chang earned her medical degree from the UCLA School of Medicine and completed her internship and residency in internal medicine at Harbor-UCLA Medical Center. She completed her gastroenterology fellowship training at the UCLA affiliated training program in gastroenterology. Dr. Chang’s clinical expertise is in disorders of gut-brain interactions which include irritable bowel syndrome (IBS), chronic constipation and functional dyspepsia. Her research is focused on the pathophysiology of IBS related to stress, sex differences, genetic and epigenetic factors, neuroendocrine alterations, and gut microbiome and the treatment of IBS. She is the vice-chief of the Vatche and Tamar Manoukian Division of Digestive Diseases at UCLA, co-director of the G. Oppenheimer Center for Neurobiology of Stress and Resilience, director of the Clinical Studies and Database Core of the Goodman-Luskin Microbiome Center, and program director of the UCLA Gastroenterology Fellowship Program. Dr. Chang is a recipient of the Janssen Award in Gastroenterology for Basic or Clinical Research, AGA Distinguished Clinician Award, and AGA Distinguished Educator Award. She has authored more than 160 original research articles, 70 review articles and 29 book chapters on her specialty interests and is a frequent speaker at national and international meetings. Active in professional organizations, she is a member of the Rome Foundation Board of Directors and previously served as clinical research councilor of the American Gastroenterological Association (AGA) Governing Board and president of the American Neurogastroenterology and Motility Society (ANMS). She also serves as associate editor of the journal, Gastroenterology. She is a fellow of the AGA and American College of Gastroenterology (ACG).




Medical Board Certifications

Gastroenterology, American Board of Internal Medicine, 1993
Internal Medicine, American Board of Internal Medicine, 1989


Gastroenterology, UCLA School of Medicine, 1992


Internal Medicine, Harbor - UCLA Medical Center, 1989


Internal Medicine, Harbor - UCLA Medical Center, 1987


MD, UCLA School of Medicine, 1986

Hospital Affiliations

Ronald Reagan UCLA Medical Center


Case presentation: Abdominal pain and constipation in a patient with fibromyalgia
Case presentation: Patient with IBS-D symptoms and POTS 2023
Case presentations: Managing a patient on prolonged restrictive diet with persistent symptoms and managing DGBI and coexistent psychological disorder 2023
Nausea and vomiting: CVS and CHS
A patient with chronic dyspepsia
Functional GI: Dietary management, ARFI disorder, chronic abdominal pain
Functional GI: Non-pharm treatment, diaphragmatic breathing, behavioral therapies
How is IBS diagnosed?
What is the cause of IBS?
What is irritable bowel syndrome or IBS?
How is IBS treated?
Defecation disorders



  • Irritable bowel syndrome (IBS)
  • Functional bowel disorders

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  • Super Doctors® Southern California, 2019-2024
  • Best Doctors in America, 2019-2021
  • Janssen Award in Gastroenterology for Basic or Clinical Research
  • AGA Distinguished Clinician Award
  • AGA Distinguished Educator Award