Dr. Siamak Tabib is a gastroenterologist in Los Angeles, California and is affiliated with Cedars-Sinai Medical Center. He received his medical degree from David Geffen School of Medicine at UCLA and has been in practice for more than 20 years. Dr. Siamak Tabib has expertise in treating upper gi endoscopy, colonoscopy, chronic inflammatory bowel disease (IBD), among other conditions - see all areas of expertise. Dr. Siamak Tabib accepts Medicare, Blue Cross - see other insurance plans accepted.