Colonoscopy Beverly Hills By Dr. Peyton Berookim Top GI in California | AB Newswire : So if you’re looking to undergo a colonoscopy procedure in Beverly Hills, trust an experienced GI doctor who will work with you to make sure you get the best care: trust Dr. Berookim. To find out more, or to schedule a colonoscopy in Beverly Hills, contact Dr. Berookim at the Beverly Hills Gastroenterology Institute of Southern California by calling him at 310-271-1122 or e-mailing him at info@gidoctor.com.