Dr. Mark Pimentel is a board-certified gastroenterologist who treats gastrointestinal motility disorders, irritable bowel syndrome (IBS), and small intestinal bacterial overgrowth (SIBO). He works at the Cedars-Sinai Medical Center in Los Angeles. His clinical practice includes the assessment and treatment of patients with chronic gastrointestinal diseases, and microbiome-related illnesses, with the use of specialized diagnostic testing and targeted therapy.
He is a director of the Gastrointestinal Motility Program and Laboratory. He is also the executive director of the Medically Associated Science and Technology (MAST) Program at Cedars-Sinai. Furthermore, he is an associate professor of medicine and actively contributes to clinical practice and academic research. Through his leadership, the organization has been able to build one of the most extensive GI motility programs in the United States. A great emphasis has been placed on translating research to patient care.
He has thirty years of experience in the field of gastroenterology and has contributed much to the field of research. He is known to have established the association between food poisoning and IBS and spearheaded the establishment of one of the earliest diagnostic blood tests for IBS, changing the perception of the disease to an organic disease and not a psychological one. His work interest is in gut microbiome interactions, bacterial overgrowth, and motility disorders.
Dr. Pimentel has published many peer-reviewed articles in reputable medical journals, like The New England Journal of Medicine and Annals of Internal Medicine. He has also written a book about the solution to IBS, ‘A New IBS Solution’. His contribution has significantly impacted the development of diagnostic and treatment measures of gastrointestinal disorders.
He has been awarded several research grants and is a member of the largest professional associations, like the American Gastroenterological Association and the American College of Gastroenterology. He is known for his contributions to research and leading gastrointestinal science. His professional life has been an amalgamation of specialty clinical practice and academic administration, as well as innovative research.