Peninsula Gastroenterology Medical Group, Gastroenterologists logo for print
Peninsula Gastroenterology Medical Group, Gastroenterologists
Redwood City: 2900 Whipple Ave | Suite 245 |Redwood City, CA 94062 • Phone: 650-365-3700
Mountain View: 2495 Hospital Drive | Suite 600 | Mountain View, CA 94040 • Phone: 650-964-3636

Due to COVID-19 concerns, PGI is providing telemedicine services.
Telemedicine Telemedicine Help


Telemedicine Help

Peninsula Gastroenterology Medical Group is dedicated to continuing your health care in a safe and convenient way using video visits with Zoom or Doximity. The information below can help guide you.

Our preferred method is Zoom. If you are registered on the UCSF MyChart portal you will automatically receive an invitation prior to your visit. You can use a computer, smartphone or tablet to access the zoom meeting. It is helpful if you have the zoom app as well, but not mandatory.

If you are not set up on MyChart you can still meet with our providers via Zoom! Each provider has a unique Zoom ID which you can plug in to enter the virtual waiting room prior to your visit.

  • Dr. James Torosis is 873 770 9413
  • Dr. Vicky Yang is 579 297 5674
  • Dr. Daniel Rengstorff is 619 478 3726
  • Dr. Cynthia Leung is 592 264 7183
  • Hoan B. Nguyen, PA is 455 635 2898

If you are using Doximity, you will receive a text message right at the time of your visit or just a few minutes prior to your visit with a link to join the meeting. Doximity requires that you use a smart phone and enable access to your microphone and camera.

For either Zoom or Doximity we ask that you be patient as sometimes your provider may be behind 5-10 minutes. Please refrain from calling the office during that period to keep the phone lines open.

Thank you for allowing us to be a part of your care team.

Related Links

Atherton Endoscopy Center photo

Atherton Endoscopy Center

While you are a patient at Atherton Endoscopy Center, our highly competent and professional staff will care for you. Everyone from the receptionist to the physician embraces our philosophy of patient-focused care. Above all, our staff is friendly and concerned for your comfort.