Harold Fong, M.D.
NPI 1427262203 · Anesthesiology Physician · South San Francisco, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Fong, M.D. is a Anesthesiology Physician provider in South San Francisco, CA (NPI 1427262203).
Provider details
- NPI number
- 1427262203
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A99628 (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
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
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2021-12-15
Frequently asked questions
- What is Harold Fong's NPI number?
- Harold Fong's National Provider Identifier (NPI) is 1427262203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Fong's specialty?
- Harold Fong is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Fong located?
- Harold Fong's practice location on file with NPPES is 1200 El Camino Real, South San Francisco, CA 94080-3208.
- What is Harold Fong's phone number?
- The practice phone number listed in the NPPES registry for Harold Fong is (650) 742-2030.
- Does Harold Fong accept Medicare?
- Harold Fong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Fong's NPI active?
- Yes — Harold Fong's NPI (1427262203) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.