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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Dear South Bay Gastroenterology patients,

Our thoughts are with our patients, their loved ones, and our entire South Bay community during this unprecedented time. We would like to share our support as well as updates on SBGI’s response to the Coronavirus (COVID-19) pandemic. The safety and well-being of the community are of the utmost importance to us, and we are vigilantly monitoring and evaluating this evolving situation. In light of concerns around COVID-19 and the recommendations and guidance of numerous agencies, we have elected to pre-emptively suspend all non-urgent office consultations and outpatient procedures. The office will remain open for urgent consultations only, and all non-urgent follow-ups will be served via Telehealth or be rescheduled. We will continue to provide hospital coverage for our inpatient population at both Torrance Memorial Medical Center and Providence Little Company of Mary Medical Center. SBGI has been in daily communications with both hospital leadership teams in our unified effort to curtail the spread of this virus. We will provide additional updates in the coming weeks to inform you about any changes to public and practice policies. As COVID-19 continues to spread throughout our country, the health and safety of our patients, healthcare providers, and employees is a top priority for South Bay Gastroenterology. We regret any inconvenience this may cause to your schedule and look forward to continuing to serve your healthcare needs.

Please submit any questions via our website and we will get back to you as soon as possible.

Kim Georgian
South Bay Gastroenterology