REGENTS OF THE UNIVERSITY OF CALIFORNIA
NPI 1467522037
Internal Medicine - Gastroenterology in San Francisco, CA

Active since November 09, 2006
505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-2318(415) 353-2407 Get Directions Write a Review

NPPES record last updated: April 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Regents Of The University Of California NPPES

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

REGENTS OF THE UNIVERSITY OF CALIFORNIA (NPI 1467522037), doing business as Ucsf Department Of Medicine Gastroenterology, is a healthcare organization registered as a gastroenterology in San Francisco, California and active in the NPI registry since November 2006. The organization lists David Rein, Interim Vice Dean, Administration, as its authorized official.

NPPES Registry Identity

NPI1467522037
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameREGENTS OF THE UNIVERSITY OF CALIFORNIA
Location Address505 PARNASSUS AVESan Francisco, CA 94143-0120
Mailing Address1635 Divisadero St, Suite 625, Box 1821San Francisco, CA 94143-0001 · (415) 476-4029 · Fax (415) 476-4150
Fax(415) 353-2407
Organization SubpartYesParent: Ucsf Medical Center
Authorized OfficialDavid ReinInterim Vice Dean, Administration · (415) 476-4003
Enumeration DateNovember 9, 2006
Last NPPES UpdateApril 16, 2025
NPPES CertifiedApril 16, 2025
✔ NPI 1467522037 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · 220000091
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X · License 220000091 (CA)
505 PARNASSUS AVE, San Francisco, CA 94143

Other Names 1

Doing Business AsUcsf Department Of Medicine Gastroenterology

Other Identifiers 1

MedicaidGR0084563CA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Regents Of The University Of California is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2,103

Medicare enrollment records show 2,103 clinicians reassign Medicare billing to Regents Of The University Of California, which bills Medicare for the services they deliver. Of these, 372 practice at this address and 1,364 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 54

Nurse Practitioner558
Internal Medicine330
Hospitalist234
Cardiovascular Disease (Cardiology)88
Hematology/Oncology83
Ophthalmology78
Pulmonary Disease74
Infectious Disease66
46 other specialties592

Nearest to this location (20)

See all 2,103
Cardiovascular Disease (Cardiology)
NPI 1467427096
505 PARNASSUS AVE FL 3
San Francisco, CA 94143
(410) 502-7974
✔ PECOS✔ Accepts MedicareSame address
Pulmonary Disease
NPI 1851106223
505 PARNASSUS AVENUE BOX 0111
San Francisco, CA 94143
(326) 641-5476
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1518615277
505 PARNASSUS AVE # M-896
San Francisco, CA 94143
(415) 353-1898
✔ PECOS✔ Accepts MedicareSame address
Anesthesiology
NPI 1326578527
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-1000
✔ PECOS✔ Accepts MedicareSame address
Hematology/Oncology
NPI 1063754448
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-9000
✔ PECOS✔ Accepts MedicareSame address
Critical Care (Intensivists)
NPI 1356632632
505 PARNASSUS AVE RM M987 UCSF DEPARTMENT OF MEDICINE
San Francisco, CA 94143
(415) 476-1528
✔ PECOS✔ Accepts MedicareSame address
Medical Oncology
NPI 1245657311
505 PARNASSUS AVE RM 987
San Francisco, CA 94143
(510) 386-5155
✔ PECOS✔ Accepts MedicareSame address
Adult Congenital Heart Disease (ACHD)
NPI 1699207217
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-9000
✔ PECOS✔ Accepts MedicareSame address
Hospitalist
NPI 1114487139
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-1529
✔ PECOS✔ Accepts MedicareSame address
Infectious Disease
NPI 1770110991
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-1528
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1275929077
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-1000
✔ PECOS✔ Accepts MedicareSame address
Neurology
NPI 1477181378
505 PARNASSUS AVE
San Francisco, CA 94143
(559) 260-6520
✔ PECOS✔ Accepts MedicareSame address
Interventional Cardiology
NPI 1063495166
505 PARNASSUS AVE # M-1777A
San Francisco, CA 94143
(415) 476-1325
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1912351180
505 PARNASSUS AVE ROOM 987
San Francisco, CA 94143
(415) 476-1528
✔ PECOS✔ Accepts MedicareSame address
Hospice/Palliative Care
NPI 1952989337
505 PARNASSUS AVE # 14L
San Francisco, CA 94143
(415) 476-4838
✔ PECOS✔ Accepts MedicareSame address
Cardiac Electrophysiology
NPI 1821590514
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-5706
✔ PECOSSame address
Geriatric Medicine
NPI 1003348830
505 PARNASSUS AVE 15 LONG
San Francisco, CA 94143
(415) 406-1417
✔ PECOS✔ Accepts MedicareSame address
Rheumatology
NPI 1518499763
505 PARNASSUS AVE M987
San Francisco, CA 94143
(415) 476-1528
✔ PECOS✔ Accepts MedicareSame address
Emergency Medicine
NPI 1417906447
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 353-1634
✔ PECOSSame address
General Surgery
NPI 1639150915
505 PARNASSUS AVE
San Francisco, CA 94143
(415) 476-1000
✔ PECOS✔ Accepts MedicareSame address
See all 2,103 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 Regents Of The University Of California's NPI number?

The NPI number for Regents Of The University Of California is 1467522037. It was assigned to this organization in the NPPES registry on November 9, 2006. The provider is doing business as UCSF Department of Medicine Gastroenterology.

Where is Regents Of The University Of California located?

Regents Of The University Of California is located at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2318.

What is Regents Of The University Of California's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Regents Of The University Of California enrolled in Medicare?

Yes. Regents Of The University Of California is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Regents Of The University Of California?

According to the CMS Revalidation Reassignment List (October 2026 release), 2,103 clinicians in 54 Medicare specialties reassign their Medicare billing to Regents Of The University Of California. 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 Nurse Practitioner (558), Internal Medicine (330) and Hospitalist (234). Of these, 372 practice at this address and 1,364 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 Regents Of The University Of California was last updated on April 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.