UNIVERSITY OF CALIFORNIA SFGH MEDICAL GROUP
NPI 1265407381
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Francisco, CA

Active since February 22, 2006
2540 23RD ST, 2ND FLOOR, ROOM 2110, SAN FRANCISCO, CA 94143(415) 514-9031 Get Directions Write a Review

NPPES record last updated: December 23, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 23, 2025, May 20, 2025 (2 updates tracked since 2025).

About University Of California Sfgh Medical Group NPPES

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

UNIVERSITY OF CALIFORNIA SFGH MEDICAL GROUP (NPI 1265407381), doing business as Ucsf Sfgh Medical Group Dept Of Endocrinology, is a healthcare organization registered as an endocrinology, diabetes & metabolism in San Francisco, California and active in the NPI registry since February 2006. The organization lists Juanita Villanueva, Director, as its authorized official.

NPPES Registry Identity

NPI1265407381
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameUNIVERSITY OF CALIFORNIA SFGH MEDICAL GROUP
Location Address2540 23RD ST, 2ND FLOOR, ROOM 2110San Francisco, CA 94143
Mailing AddressPo Box 743749Los Angeles, CA 90074-3749 · (415) 514-3000 · Fax (415) 502-8175
Organization SubpartNo
Authorized OfficialJuanita VillanuevaDirector · (415) 514-2574
Enumeration DateFebruary 22, 2006
Last NPPES UpdateDecember 23, 20252 updates tracked since enumeration
NPPES CertifiedDecember 23, 2025
✔ NPI 1265407381 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
2540 23RD ST, San Francisco, CA 94143

Other Names 1

Doing Business AsUcsf Sfgh Medical Group Dept Of Endocrinology

Other Identifiers 1

MedicaidZZZP3857ZCA

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 SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

University Of California Sfgh Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

636

Medicare enrollment records show 636 clinicians reassign Medicare billing to University Of California Sfgh Medical Group, which bills Medicare for the services they deliver. Of these, 122 practice at this address and 429 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 33

Internal Medicine191
Pediatric Medicine135
Otolaryngology63
Infectious Disease33
Nephrology23
Pulmonary Disease19
Endocrinology18
Pathology16
25 other specialties138

Nearest to this location (20)

See all 636
Infectious Disease
NPI 1386986263
2540 23RD ST
San Francisco, CA 94143
(415) 206-8000
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1619335551
2550 23RD ST BLDG 92ND
San Francisco, CA 94110
(415) 206-8812
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1043470818
1001 POTRERO AVE RM 1M3 SFGH GENERAL MEDICINE CLINIC
San Francisco, CA 94110
(415) 206-4892
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1013300417
1001 POTRERO AVE # 6B
San Francisco, CA 94110
(628) 206-4444
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1114365699
1001 POTRERO AVENUE BLDG. 5, 3D
San Francisco, CA 94110
(628) 206-8823
✔ PECOS✔ Accepts MedicareSame address
Endocrinology
NPI 1205037629
1001 POTRERO AVENUE BLDG 30 RM 3501K
San Francisco, CA 94110
(415) 206-4615
✔ PECOSSame address
Pulmonary Disease
NPI 1407114044
1001 POTRERO AVE RM 5K1
San Francisco, CA 94110
(415) 206-8494
✔ PECOS✔ Accepts MedicareSame address
Otolaryngology
NPI 1487147377
1001 POTRERO AVENUE BLDG. 5, #4M
San Francisco, CA 94110
(628) 206-5476
✔ PECOS✔ Accepts MedicareSame address
Pediatric Medicine
NPI 1467488262
1001 POTRERO AVE
San Francisco, CA 94110
(415) 514-3000
✔ PECOS✔ Accepts MedicareSame address
Nephrology
NPI 1912387796
1001 POTRERO AVENUE BLDG 90 2ND FLOOR
San Francisco, CA 94110
(628) 206-4777
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1891140497
1001 POTRERO AVENUE, BLDG 80-83 SFGH FAMILY HEALTH CENTER
San Francisco, CA 94110
(415) 206-5252
✔ PECOS✔ Accepts MedicareSame address
Pathology
NPI 1558697946
1001 POTRERO AVENUE, BLDG 3, 1ST FLOOR
San Francisco, CA 94110
(415) 353-1613
✔ PECOS✔ Accepts MedicareSame address
Critical Care (Intensivists)
NPI 1447830518
1001 POTRERO AVE
San Francisco, CA 94110
(414) 502-2362
✔ PECOSSame address
Rheumatology
NPI 1487660635
1001 POTRERO AVE BLDG 30 RM 3300
San Francisco, CA 94110
(415) 206-8189
✔ PECOS✔ Accepts MedicareSame address
Cardiovascular Disease (Cardiology)
NPI 1124062013
1001 POTRERO AVENUE RM 5G1
San Francisco, CA 94110
(415) 206-3503
✔ PECOS✔ Accepts MedicareSame address
Hospice/Palliative Care
NPI 1063701266
1001 POTRERO AVE RM 5H22
San Francisco, CA 94110
(628) 206-4869
✔ PECOS✔ Accepts MedicareSame address
Hospitalist
NPI 1396130324
1001 POTRERO AVE
San Francisco, CA 94110
(628) 206-2356
✔ PECOS✔ Accepts MedicareSame address
Geriatric Medicine
NPI 1952377079
1001 POTRERO AVE BLDG 25
San Francisco, CA 94110
(628) 206-8000
✔ PECOS✔ Accepts MedicareSame address
Emergency Medicine
NPI 1871818096
1001 POTRERO AVE
San Francisco, CA 94110
(415) 206-5753
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1467786277
1001 POTRERO AVE
San Francisco, CA 94110
(415) 206-8000
✔ PECOSSame address
See all 636 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 University Of California Sfgh Medical Group's NPI number?

The NPI number for University Of California Sfgh Medical Group is 1265407381. It was assigned to this organization in the NPPES registry on February 22, 2006. The provider is doing business as UCSF SFGH Medical Group Dept of Endocrinology.

Where is University Of California Sfgh Medical Group located?

University Of California Sfgh Medical Group is located at 2540 23rd St 2nd Floor, Room 2110, San Francisco, CA 94143. The listed phone number is (415) 514-9031.

What is University Of California Sfgh Medical Group's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is University Of California Sfgh Medical Group enrolled in Medicare?

Yes. University Of California Sfgh Medical Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through University Of California Sfgh Medical Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 636 clinicians in 33 Medicare specialties reassign their Medicare billing to University Of California Sfgh Medical Group. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (191), Pediatric Medicine (135) and Otolaryngology (63). Of these, 122 practice at this address and 429 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for University Of California Sfgh Medical Group was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.