Scheduling Appointments  

We can be reached at 650-988-7530 between 9:00 am and 4:30 pm, Monday through Friday. 

When calling to schedule an appointment, inform us of your insurance carrier to avoid a lack of payment due to authorization issues.

If a physician has referred you to us, our staff will request that you bring any pertinent medical records or recent laboratory studies with you. You may have the physician's office forward these documents to our office. This enables us to review your medical history, and it may prevent duplication of tests.

If you must cancel an appointment, please provide us with as much advance notice as possible. A cancellation fee may be applied. 

To schedule an appointment with Dr. Roorda, please click the following button:

About Us

Silicon Valley Gastroenterology's mission is to provide personalized, high-quality care. We have created a practice that we believe in and choose for our own family members. We also believe in educating our patients as we work with them to achieve the best gastrointestinal health possible. 

​We are certified by the American Board of Internal Medicine and have years of experience. Silicon Valley Gastroenterology and Mountain View Endoscopy Center are both conveniently located in the Melchor Pavilion building behind El Camino Hospital.   To schedule an appointment, please call: 650-988-7530.

Our Physicians

Dr. George Triadafilopoulos, MD, DSc

Dr. George Triadafilopoulos is Clinical Professor of Medicine at the Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA. He is certified in Internal Medicine and Gastroenterology by the American Board of Internal Medicine. Dr. Triadafilopoulos’s research activity ranges from gastroesophageal reflux disease and Barrett’s esophagus, to NSAID-induced gastropathy, colon polyps, C.difficile infection, motility disorders and irritable bowel syndrome.​

For more details of Dr. Triadafilopoulos' career highlights, please click here.

Dr. Andrew Roorda, MD

Dr. Andrew Roorda is Board Certified in Internal Medicine and Gastroenterology by the American Board of Internal Medicine and a Clinical Assistant Professor at the Division of Gastroenterology and Hepatology, Stanford University School of Medicine. He has published 21 articles in various scientific journals, including the New England Journal of Medicine, Digestive Diseases and Sciences, Diseases of the Esophagus and Practical Gastroenterology.

For more details of Dr. Roorda’s career highlights, please click here.

Call Us:  650-988-7530