NPI
Nephrologists in Fairfield, CA
7 nephrologists in Fairfield, CA in the October 12, 2026 NPPES file, by primary taxonomy (Internal Medicine, Nephrology). Each row shows the credential, practice address, phone, and NPI.
This search stays in California.
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Every provider listed as Internal Medicine, Nephrology near your ZIP
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Nephrologists in Fairfield
1 to 7 of 7
- 1336773571Madison Calder, MD · 101 Bodin Cir, Fairfield CA 94535 · Phone (707) 816-5930
- 1306806740Davita Nephrology Medical Associates of Ca, Inc. · 650 Empire St, Suite A, Fairfield CA 94533 · Phone (707) 426-5407 · Fax (707) 426-6376
- 1851920854Jack Luo, MD · 1411 Oliver Rd Ste 250, Fairfield CA 94534 · Phone (707) 426-5407 · Fax (707) 426-6376
- 1992000152Ong Rubin Shahmir A Medical Corporation · 1411 Oliver Rd Ste 250, Fairfield CA 94534 · Phone (707) 446-4379 · Fax (707) 446-4417
- 1225006349Steven Ong, MD · 1411 Oliver Rd Ste 250, Fairfield CA 94534 · Phone (707) 426-5407 · Fax (707) 426-6376
- 1790762763Oleg Rubin, MD · 1411 Oliver Rd Ste 250, Fairfield CA 94534 · Phone (707) 426-5407 · Fax (707) 426-6376
- 1871554766Steven Tolkan, MD · 1525 Webster St Ste A, Fairfield CA 94533 · Phone (707) 423-2506 · Fax (707) 429-1158
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Questions
How many nephrologists are in Fairfield, CA?
7 active NPI records in the October 12, 2026 NPPES file list Internal Medicine, Nephrology as their primary taxonomy and a practice location in Fairfield, CA.
How do I check a provider's NPI number?
Open the NPI number on a row. The record page shows the NPI, status, practice address, phone, specialties, and licenses as NPPES lists them.
Does this list show insurance or network status?
No. NPPES does not publish insurance or network status. This page lists public registry records only.
Source: NPPES NPI Registry, data as of October 12, 2026. Last updated October 12, 2026. How we source data. Corrections: hello@rivvi.ai.