Emeran A. Mayer, MD

Emeran A. Mayer, MD

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  • Director, G. Oppenheimer Center for Neurobiology of Stress and Resilience (CNSR)

Dr. Mayer received his MD degree from the Ludwig Maximilian’s University in Munich, Germany, in 1976, completed his residency at the Vancouver General Hospital in Vancouver, Canada, and his GI fellowship training at the UCLA/VA Wadsworth Training Program. Dr. Mayer has a career long interest in clinical and research aspects of brain body interactions, with a longstanding focus on the bidirectional communication between the brain and the gut in health and disease. He is recognized as one of the leading investigators in the world of brain gut microbiome interactions in GI disorders, including functional and inflammatory bowel disorders, ingestive behavior/obesity. He has been continuously funded by the National Institutes of Health since 1989.

He has been PI of a NIH Center grant on sex differences in functional GI disorders for the past 15 years, is PI on a NIDDK funded consortium grant of brain bladder interactions, Co-PI on a grant by the Department of Defense on brain gut microbiome interactions in autism spectrum disorders, and PI on a RO1 grant on brain gut interactions in IBS.  He has published 344 peer-reviewed articles in the leading GI and Neuroscience journals, including 100 reviews and book chapters and has co-edited three books. His articles have been cited 44, 350 times and his h-factor is 105. He has recently published a book for the general public on brain gut microbiome interactions (The Mind Gut Connection) which has been translated into 14 languages.

Dr. Mayer is the director of the G. Oppenheimer Center for Neurobiology of Stress and Resilience, and co-director of the CURE: Digestive Diseases Research Center. He has received numerous awards, most recently the Distinguished Mentor Award from the American Gastroenterological Association and the Ismar Boas Medal of the German Gastroenterological Association. He has been a regular member of the NIDDK CIMG study section from 2010-2015, has been president of the Functional Brain Gut Group, and associate editor of Gastroenterology.

Mailing address: 10833 Le Conte Ave, CHS 42-210 MC737818, Los Angeles, CA 90095

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Medical Board Certifications

Gastroenterology, American Board of Internal Medicine, 1987
Internal Medicine, American Board of Internal Medicine, 1983


VA Greater Los Angeles Healthcare System, 1982


Vancouver General Hospital, 1980
Klinikum Grosshadern, 1979


Kreiskrankenhaus Traunstein, 1977


Ludwig-Maximilians Universitat Muenchen, MD, 1977


Hospital Affiliations

Ronald Reagan UCLA Medical Center

UCLA Resnick Neuropsychiatric Hospital


The mind-gut connection: Conversation within our bodies
Microbiome and gut health
The microbiome and the brain-gut connection
Functional bowel disease
Brain-gut microbiome axis



  • Brain-gut-microbiome
  • Irritable bowel syndrome (IBS)
  • Cyclical vomiting syndrome
  • Functional dyspepsia
  • Gastroparesis
  • Functional gastrointestinal disorders
  • Brain-gut disorders


  • Super Doctors® Southern California - 2022, 2021, 2020, 2019, 2018, 2017
  • Top Doctors, Los Angeles Magazine - 2018
  • Distinguished Mentor Award - American Gastroenterological Association
  • Ismar Boas Medal - German Gastroenterological Association