Fremont, CA Nephrologists | Sutter Health Doctors

Nephrology • Fremont, CA

Home/Fremont/Nephrology/Fremont, CA Nephrologists | Sutter Health Doctors

About

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Clinic Type

Nephrology

Address

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Phone

855-398-1633

Email

S3ContactCenterCBO@sutterhealth.org

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.sutterhealth.org/find-doctor/city/Fremont/nephrologists-1042269228

Services Offered

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Insurance & Payment

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Languages Spoken

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Social Media

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Photos

What Patients Say

Overall sentiment across review platforms: mixed

Sutter Health Profile (Dr. Shalini Sundar): 4.9/5 (75 reviews)
Healthgrades (Dr. Peter Lunny): 4.5/5 (2 reviews)
WebMD (Dr. Jeanie Ahn): 3.0/5 (17 ratings)

Patients praise

Professional and knowledgeable medical care
Attentive and clear explanations
Efficient staff and scheduling experiences
Effective monitoring of chronic conditions

Common complaints

Difficult scheduling and cancellations
Perceived lack of care or urgency from some providers
Communication issues (rude bedside manner, not listening)
Financial concerns regarding unnecessary testing or billing practices

"He listens extremely well to all your concerns and problems. He explains things to you well and makes sure you understand what he is saying before you leave."

— Healthgrades (Dr. Peter Lunny)

"Dr. Ahn didn’t care to review my info for the whole month, until the very last moment. She was not sorry. Now I don’t want to see her at all."

— WebMD (Dr. Jeanie Ahn)

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

In the News

Sutter Health Brings Advanced Kidney Care to Fremont | Vitals — Nov 19, 2025
Dr. Eric J Lai | Nephrologist in Castro Valley, CA | Sutter Health — Apr 7, 2026
Dr. Johan Winoto | Nephrologist in Elk Grove, CA | Sutter Health — Jun 12, 2026
Dr. Gladys Balderama | Internal Medicine Doctor in Fremont, CA | Sutter Health — Jun 12, 2026
Dr. Nancy Serpa | Family Doctor in Fremont, CA | Sutter Health — Jun 24, 2026

Information sourced from the clinic's website as of July 10, 2026. Own this clinic? Claim or correct this listing.