San Mateo, CA Gastroenterologists | Sutter Health Doctors
Gastroenterology • San Mateo, CA
Clinic Type
Gastroenterology
Address
—
Phone
855-398-1633
S3ContactCenterCBO@sutterhealth.org
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
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Insurance & Payment
—
Languages Spoken
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Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- WebMD Care: 4.0/5 (5 ratings)
- Healthgrades: 3.9/5 (7 reviews)
Patients praise
- Professional and attentive patient care by individual physicians
- Effective communication and kindness from medical staff
- Prompt and well-organized office visits reported by some patients
Common complaints
- Difficulties with bureaucratic processes and scheduling appointments
- Concerns regarding billing practices and insurance authorization communication
- Reports of long wait times for appointments and responses
"Dr. Onuma and Nancy are professional, kind, patient, supportive, and caring. My office visits are always such a wonderful experience."
— WebMD Care"The frequent ineptitude by their clinicians and support staff is shocking. And there is no accountability... Our second issue is that now they can't seem to keep our appointments."
— Better Business BureauSynthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Dr. Vino Verghese, MD - Gastroenterologist in Burlingame, CA — May 14, 2026
- Dr. Hema Shah | Internal Medicine Doctor in San Mateo, CA | Sutter Health — Jun 12, 2026
- Dr. Cecilia Wan | Internal Medicine Doctor in San Mateo, CA | Sutter Health — Jun 12, 2026
- Dr. Sharon Chen Lee | Internal Medicine Doctor in San Mateo, CA | Sutter Health — Jun 27, 2026
- Dr. Bina Lu | Internal Medicine Doctor in San Mateo, CA | Sutter Health — Jun 12, 2026
Information sourced from the clinic's website as of July 10, 2026.
More gastroenterology clinics in San Mateo
Peninsula Gastrointestinal Specialists, Inc. is a San Mateo-based private medical practice offering gastroenterology services to treat digestive conditions such as stomach pain, acid reflux, and constipation. The group operates four offices in the U.S. (headquartered at 100 S. Ellsworth Ave, San Mateo, CA 94401) and has an annual revenue of about $4.24 million. Current workforce is small (2 employees noted). Website: mygidoctors.com. Notable metrics: monthly site visits ~4,122, low bounce rate (0.3%), and top country is the United States. Contact: contactus@mygidoctors.net; phone: (650) 342-7432.
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