Peninsula Gastrointestinal Specialists

Gastroenterology • 1 Provider

100 S Ellsworth Ave Ste 507, San Mateo CA, 94401

Make an Appointment

Peninsula Gastrointestinal Specialists is a medical group practice located in San Mateo, CA that specializes in Gastroenterology.


Insurance Check

Language services

  • Japanese

Medical Services

Help Improve Healthgrades

Does Peninsula Gastrointestinal Specialists...

Does this practice have an onsite pharmacy?

Does this practice offer weekend appointments?

Is this practice physically located within a hospital?

Does this practice offer onsite parking?

Does this practice offer appointments outside of business hours?


Peninsula Gastrointestinal Specialists

100 S Ellsworth Ave Ste 507, San Mateo, CA 94401

Provider Reviews

Overall rating for providers


Based on 5 Reviews

Sonia Mar 16 2018

Review for Dr. Onuma

Dr. Onuma is a fantastic doctor! He takes the time to listen to you and your concerns. He also takes the time to get to know you. He is great at returning calls if you have a concern or need anything. I am so grateful that I found him!

Jul 03 2017

Review for Dr. Onuma

Frequently Asked Questions

Where is Peninsula Gastrointestinal Specialists located?

What are the top specialties practiced at Peninsula Gastrointestinal Specialists?

How many providers practice at Peninsula Gastrointestinal Specialists?