Oren Zaidel, M.D.

Dr Oren Zaidel | Gastroenterologist Torrance CA | Long Beach CA


A native southern Californian, Dr. Oren Zaidel received his Bachelor of Arts from the University of California at Berkeley. He then returned to southern California and received his medical degree from the Keck School of Medicine at USC. Dr. Zaidel trained in Internal Medicine and completed his residency at Cedars-Sinai Medical Center.  Dr. Zaidel is a board certified gastroenterologist who specializes in all aspects of gastrointestinal and liver disorders.  He has a special interest in irritable bowel syndrome and motility and has dedicated his practice toward advanced diagnostic and therapeutic endoscopy.

Education And Training

He then went on to complete his subspecialty training in Gastroenterology and Hepatology in the UCLA Fellowship Program in Digestive Disease and Cedars-Sinai Medical Center.Dr. Zaidel has published research on intestinal motility, and specifically on irritable bowel syndrome (IBS) and the bacterial microbiota in the animal and human intestinal tract. Along with a busy general gastroenterology practice encompassing all areas of bowel disease and screening for colon cancer, Dr. Zaidel’s areas of specialized practice include irritable bowel syndrome, stool transplant, and motility disorders.


Dr. Zaidel is the current managing partner of South Bay Gastroenterology and is an active member of the medical staff at both Little Company of Mary Hospital and Torrance Memorial Medical Center. He also currently serves as the Chair of the Credentialing Committee at Torrance Memorial Medical Center and is an active member of the South Bay medical community. Dr. Zaidel loves getting to know his patients, traveling and spending time with his wife and three children.

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