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Welcome to David S. Shields Dr Shields medical practice over 20 years Advanced Techniques Personalized and Professional Top Doctors

Welcome to the Medical Offices of David S. Shields, MD in Palo Alto, California

David S. Shields, MD is a Board Certified Gastroenterologist with his private consultative office located directly across from Stanford Hospital in Palo Alto, California. He has provided quality medical care to the Bay Area community at this location for 20 years. We welcome both patients that seek our care directly and patients that are referred by other physicians.

Latest News - Introducing a New Treatment for Hemorrhoids

Treatment for Hemorrhoids New Procedure - Treatment for Hemorrhoids CRH O’Regan System™

Dr. David Shields offers the patented, CRH O’Regan System™, considered the “gold standard” treatment. This highly effective (99.1%), minimally invasive procedure is performed in our offices in less than a minute. If there are multiple hemorrhoids, we treat them one at a time in separate visits. >> CRH O’Regan System™

Featured Procedures & Treatments

Colonoscopy Upper Endoscopy ERCP PillCam Bravo 48 PH Monitor


Colonoscopy is a procedure used to see inside the colon and rectum. Colonoscopy can detect inflamed tissue, ulcers, and abnormal growths. The procedure is used to look for early signs of colorectal cancer and can help doctors diagnose unexplained changes in bowel habits, abdominal pain, bleeding from the anus, and weight loss. Learn more on colonoscopy in Palo Alto.

Upper Endoscopy

Upper endoscopy enables the physician to look inside the esophagus, stomach, and duodenum (first part of the small intestine). The procedure might be used to discover the reason for swallowing difficulties, nausea, vomiting, reflux, bleeding, indigestion, abdominal pain, or chest pain.

ERCP - Endoscopic Retrograde Cholangio-pancreatography

Endoscopic retrograde cholangio-pancreatography (ERCP) enables the physician to diagnose problems in the liver, gallbladder, bile ducts, and pancreas. The liver is a large organ that, among other things, makes a liquid called bile that helps with digestion.


Capsule Endoscopy

Capsule endoscopy is a procedure designed to help your physician see what is happening inside parts of your gastrointestinal (GI) tract. The patient swallows a vitamin-sized pill with a camera inside.

Bravo 48 hour pH Monitor

Bravo pH capsule attached to delivery system. The catheter-free test measures pH levels in your esophagus. These measurements allow your doctor to evaluate your heartburn and acid reflux symptoms and plan the best treatment for your diagnosis.