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SAN FRANCISCO NEPHROLOGY PROFESSIONAL
NPI 1649952268
Internal Medicine - Nephrology in San Francisco, CA

Active since August 03, 2023
636 CLAY ST, SAN FRANCISCO, CA 94111(833) 370-2086(540) 235-5678 Get Directions Write a Review

NPPES record last updated: February 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 28, 2026, Nov 14, 2025 (2 updates tracked since 2025).

About San Francisco Nephrology Professional NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SAN FRANCISCO NEPHROLOGY PROFESSIONAL (NPI 1649952268) is a healthcare organization registered as a nephrology in San Francisco, California and active in the NPI registry since August 2023. The organization maintains 3 additional practice locations and lists Celeste S Chang, Md, as its authorized official.

NPPES Registry Identity

NPI1649952268
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameSAN FRANCISCO NEPHROLOGY PROFESSIONAL
Location Address636 CLAY STSan Francisco, CA 94111-2502
Mailing AddressPo Box 330172San Francisco, CA 94133-0172 · (650) 265-8755 · Fax (540) 235-5678
Phone(833) 370-2086
Fax(540) 235-5678
Organization SubpartNo
Authorized OfficialCeleste S ChangMd · (650) 265-8755
Enumeration DateAugust 3, 2023
Last NPPES UpdateFebruary 22, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 22, 2026
✔ NPI 1649952268 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
636 CLAY ST, San Francisco, CA 94111
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Secondary Practice Locations 3

Location 12765 16th StSan Francisco, CA 94103-4215 · Phone (833) 389-2155
Location 21499 Webster StSan Francisco, CA 94115-3705 · Phone (833) 370-2080
Location 31493 Webster StSan Francisco, CA 94115-3705 · Phone (833) 386-2394

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DVA HEALTHCARE RENAL CARE INC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
636 CLAY ST
SAN FRANCISCO, CA 94111
San Francisco County (415) 291-8992

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is San Francisco Nephrology Professional's NPI number?

The NPI number for San Francisco Nephrology Professional is 1649952268. It was assigned to this organization in the NPPES registry on August 3, 2023.

Where is San Francisco Nephrology Professional located?

San Francisco Nephrology Professional is located at 636 Clay St, San Francisco, CA 94111. The listed phone number is (833) 370-2086.

What is San Francisco Nephrology Professional's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for San Francisco Nephrology Professional was last updated on February 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.