Dr. Tabib

Meet Gastroenterologist & Hepatolgist Siamak Tabib, M.D.

Dr. Siamak Tabib is a prominent gastroenterology and hepatology doctor in Los Angeles. Commonly referred to as a “stomach doctor,” Dr. Tabib incorporates prevention, diagnosis and treatment for all his patients. These two specialty fields of medicine deal primarily with conditions of the digestive tract, which is made up of the esophagus, stomach, small and large intestines, liver, gallbladder, and pancreas. Our goal is to maintain health primarily through disease prevention and when necessary, to provide treatment with appropriate leading-edge procedures. We incorporate diagnostic and therapeutic procedures such as upper and lower endoscopy (EGD and colonoscopy) in your pathway to wellness.

Heartburn and abdominal pain are common symptoms, which may be early warning signs of more serious conditions such as gastroesophageal reflux (GERD) and peptic ulcers. Today, these conditions can be treated effectively. Colon cancer and esophageal cancer are also on the rise. Fortunately, measures exist for prevention of these malignancies. If diagnosed early, these cancers can be cured with excellent outcomes.

We provide everyone a personalized treatment plan to meet your unique needs and improve your quality of life. Thousands of loyal patients have experienced Dr. Tabib’s attention to detail, his compassion and realized his paramount goal of improving his patient’s quality of life. Contact our Gastroenterology and Hepatology Center in Los Angeles to schedule a private consultation with Dr. Tabib.

man and woman running on beach

Current Practice

  • Gastroenterology and Hepatology
  • Private Practice
  • Diagnostic and Therapeutic Endoscopy
  • Metabolic Support and Nutrition
  • Attending-Metabolic Support Team and Nutrition
  • Attending-Liver Transplant/Hepatology Teaching Rounds
  • Expert Reviewer, Medical Board of California

Postgraduate Training

  • University of California Los Angeles/Cedars-Sinai Medical Center Fellowship-Gastroenterology & Hepatology July 2000-June 2003
  • Cedars-Sinai Medical Center/University of California Los Angeles Residency-Internal Medicine Solomon Scholars Resident Research Award, 2000 July 1998-June 2000
  • Cedars-Sinai Medical Center/University of California Los Angeles Internship-Internal Medicine July 1997-June 1998

Professional Organizations

  • American College of Gastroenterology
  • American College of Physicians
  • American Gastroenterological Association
  • American Society for Gastrointestinal Endoscopy
  • Southern California Society of Gastroenterology
  • American Medical Association
  • California Medical Association
  • Los Angeles County Medical Association
  • Crohn’s and Colitis Foundation of America
  • Golden Key National Honor Society
  • Healing Spirits Medical Chapter-Hadassah Organization
  • Federated Ambulatory Surgery Association

Hospital Affiliation

  • Cedars-Sinai Medical Center
  • Faculty Staff Attending, Department of General Internal Medicine,
  • Division of Gastroenterology
  • David Geffen School of Medicine at UCLA
  • Assistant Clinical Professor in Medicine
  • Division of Internal Medicine

Board Certification

  • Diplomate, American Board of Internal Medicine No. 200142
  • Diplomate, American Board of Gastroenterology & Hepatology


Medical Presentations

  • Nutritional Disorders in the Post-Surgical Patients – Metabolic Support Team Weakly Conference, Cedars-Sinai Medical Center, 2004.
  • Management of Postoperative Ileus – Liver Transplantation Weekly Conference, Cedars-Sinai Medical Center, 2003.
  • Therapeutic Options for Treating IBD – Salix Pharmaceuticals, Los Angeles, 2003.
  • Pathogenesis and Management of Gallstones – Department of Gastroenterology Grand Rounds, Cedars-Sinai Medical Center, 2002.
  • Intestinal Transplantation – Department of Gastroenterology Grand Rounds, Cedars-Sinai Medical Center, 2002
  • Pancreatic Cancer – Department of Gastroenterology Grand Rounds, Cedars-Sinai Medical Center, 2001. Celiac Disease – Department of Gastroenterology Grand Rounds, Cedars-Sinai Medical Center, 2001.
  • Gastrointestinal Manifestations of Systemic Disorders – Department of Gastroenterology Grand Rounds, Cedars-Sinai Medical Center, 2000.