Regents of the University of California
NPI 1558431122 · Hematology & Oncology Physician · San Francisco, CA
Regents of the University of California is a Hematology & Oncology Physician organization in San Francisco, CA (NPI 1558431122).
Provider details
- NPI number
- 1558431122
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Ucsf Medical Center
- Organization subpart
- Yes
- Authorized official
- David Rein, Interim Vice Dean, Administration(415) 476-4003
- License
- 220000091 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Ucsf Department of Medicine Hematology Oncology
Registry dates
- Enumerated
- 2006-11-09
- Last updated
- 2025-04-16
- Certified
- 2025-04-16
Frequently asked questions
- What is Regents of the University of California's NPI number?
- Regents of the University of California's National Provider Identifier (NPI) is 1558431122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Regents of the University of California?
- Regents of the University of California is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Regents of the University of California located?
- Regents of the University of California's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-0120.
- What is Regents of the University of California's phone number?
- The practice phone number listed in the NPPES registry for Regents of the University of California is (415) 353-2421.
- Who is the authorized official for Regents of the University of California?
- The authorized official listed on Regents of the University of California's NPPES record is David Rein, Interim Vice Dean, Administration. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Regents of the University of California's NPI active?
- Yes — Regents of the University of California's NPI (1558431122) is active in the NPPES registry as of the last update on 2025-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.