Bruce Flagg, D.O.
NPI 1457627853 · General Practice Physician · San Francisco, CA
Bruce Flagg, D.O. is a General Practice Physician provider in San Francisco, CA (NPI 1457627853).
Provider details
- NPI number
- 1457627853
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- R20A5309 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
Registry dates
- Enumerated
- 2012-03-29
- Last updated
- 2013-03-27
Frequently asked questions
- What is Bruce Flagg's NPI number?
- Bruce Flagg's National Provider Identifier (NPI) is 1457627853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bruce Flagg's specialty?
- Bruce Flagg is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Bruce Flagg located?
- Bruce Flagg's practice location on file with NPPES is 2041 Polk St, San Francisco, CA 94109-2525.
- What is Bruce Flagg's phone number?
- The practice phone number listed in the NPPES registry for Bruce Flagg is (650) 898-7604.
- Is Bruce Flagg's NPI active?
- Yes — Bruce Flagg's NPI (1457627853) is active in the NPPES registry as of the last update on 2013-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.