UNIVERSITY OF CALIFORNIA SAN FRANCISCO
NPI 1164512851
Internal Medicine in San Francisco, CA
About University Of California San Francisco NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
UNIVERSITY OF CALIFORNIA SAN FRANCISCO (NPI 1164512851), doing business as Ucsf Medical Center, is a healthcare organization registered as an internal medicine in San Francisco, California and active in the NPI registry since October 2006. The organization lists Kosal Bo, Vice President, Medical Staff Gov, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 15
Other Names 1
Other Identifiers 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)
University Of California San Francisco is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
5,621Medicare enrollment records show 5,621 clinicians reassign Medicare billing to University Of California San Francisco, which bills Medicare for the services they deliver. Of these, 531 practice at this address and 3,458 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 81
Nearest to this location (20)
See all 5,621San Francisco, CA 94143
San Francisco, CA 94143
San 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 University Of California San Francisco's NPI number?
The NPI number for University Of California San Francisco is 1164512851. It was assigned to this organization in the NPPES registry on October 13, 2006. The provider is doing business as UCSF Medical Center.
Where is University Of California San Francisco located?
University Of California San Francisco is located at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.
What is University Of California San Francisco's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is University Of California San Francisco enrolled in Medicare?
Yes. University Of California San Francisco is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through University Of California San Francisco?
According to the CMS Revalidation Reassignment List (October 2026 release), 5,621 clinicians in 81 Medicare specialties reassign their Medicare billing to University Of California San Francisco. 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 (849), Pediatric Medicine (616) and Diagnostic Radiology (364). Of these, 531 practice at this address and 3,458 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 San Francisco was last updated on April 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# University Of California San Francisco · NPI 1164512851
Internal Medicine organization in San Francisco, California. Organization record, active in the CMS NPPES registry since October 13, 2006.
## Identity
- **NPI:** 1164512851 (Entity type: Organization)
- **Enumerated:** October 13, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Also known as:** UCSF Medical Center (Doing Business As)
- **Organization subpart:** Yes (part of University Of California San Francisco Medical Center)
- **Authorized official:** Kosal Bo, VICE PRESIDENT, MEDICAL STAFF GOV
## Practice location
- **Address:** 400 PARNASSUS AVE, San Francisco, CA 94143-2202
- **Phone:** (415) 476-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 5,621 clinicians in 81 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (849), Pediatric Medicine (616), Diagnostic Radiology (364); 531 practice at this address and 3,458 within 10 miles; [full list](https://npiprofile.com/npi/1164512851/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 30, 2025
- **Other identifiers:** Medicaid GR008429B (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1164512851) · Data from the CMS NPPES public registry.