REGENTS UNIV OF CALIFORNIA UCSF
NPI 1124439807
Internal Medicine in San Francisco, CA
About Regents Univ Of California Ucsf NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REGENTS UNIV OF CALIFORNIA UCSF (NPI 1124439807), doing business as Ucsf Physician Group, is a healthcare organization registered as an internal medicine in San Francisco, California and active in the NPI registry since May 2014. The organization lists Kosal Bo, Vp Medical Staff Governance, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 15
Other Names 1
Group Practice 1
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 Univ Of California Ucsf is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
337Medicare enrollment records show 337 clinicians reassign Medicare billing to Regents Univ Of California Ucsf, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 49 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 43
Nearest to this location (20)
See all 337San Francisco, CA 94143
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 Univ Of California Ucsf's NPI number?
The NPI number for Regents Univ Of California Ucsf is 1124439807. It was assigned to this organization in the NPPES registry on May 15, 2014. The provider is doing business as UCSF Physician Group.
Where is Regents Univ Of California Ucsf located?
Regents Univ Of California Ucsf is located at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.
What is Regents Univ Of California Ucsf's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Regents Univ Of California Ucsf enrolled in Medicare?
Yes. Regents Univ Of California Ucsf is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Regents Univ Of California Ucsf?
According to the CMS Revalidation Reassignment List (October 2026 release), 337 clinicians in 43 Medicare specialties reassign their Medicare billing to Regents Univ Of California Ucsf. 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 Obstetrics/Gynecology (41), Nurse Practitioner (32) and Pediatric Medicine (28). Of these, 5 practice at this address and 49 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 Univ Of California Ucsf 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.
# Regents Univ Of California Ucsf · NPI 1124439807
Internal Medicine organization in San Francisco, California. Organization record, active in the CMS NPPES registry since May 15, 2014.
## Identity
- **NPI:** 1124439807 (Entity type: Organization)
- **Enumerated:** May 15, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Also known as:** UCSF Physician Group (Doing Business As)
- **Organization subpart:** Yes (part of Ucsf Medical Center)
- **Authorized official:** Kosal Bo, VP MEDICAL STAFF GOVERNANCE
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-1821
- **Phone:** (415) 476-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 337 clinicians in 43 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Obstetrics/Gynecology (41), Nurse Practitioner (32), Pediatric Medicine (28); 5 practice at this address and 49 within 10 miles; [full list](https://npiprofile.com/npi/1124439807/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1124439807) · Data from the CMS NPPES public registry.