Mark Pimentel

Mark Pimentel, MD, is an Associate Professor of Medicine and of Gastroenterology at Cedars-Sinai. Dr. Pimentel is also the Executive Director of the Medically Associated Science and Technology (MAST) program at Cedars-Sinai, a collective of physicians and researchers dedicated to the study of the gut microbiome in order to develop effective diagnostic tools and therapies to improve patient care. Dr. Pimentel is also a Professor of Medicine at the Geffen School of Medicine, University of California, Los Angeles (UCLA.).

As a physician and researcher, Dr. Pimentel has served as a principal investigator or co-investigator for numerous translational and clinical investigations of irritable bowel syndrome (IBS). This research led to the first ever blood tests for IBS, ibs-smartTM, the only licensed and patented serologic diagnostic for irritable bowel syndrome. The test measures the levels of two validated IBS biomarkers, anti-CdtB and anti-vinculin.

A pioneering expert in IBS, Dr. Pimentel’s work has been published in the New England Journal of Medicine, Annals of Internal Medicine, American Journal of Physiology, American Journal of Medicine, American Journal of Gastroenterology and Digestive Diseases and Sciences, among others. Dr. Pimentel has presented at national and international medical conferences and advisory boards. He is a diplomate of the American Board of Internal Medicine (Gastroenterology), a fellow of the Royal College of Physicians and Surgeons of Canada and a member of the American Gastroenterological Association, the American College of Gastroenterology, and the American Neurogastroenterology and Motility Society.