George Gregory, M.D.
NPI 1558310722 · Anesthesiology Physician · San Francisco, CA
George Gregory, M.D. is a Anesthesiology Physician provider in San Francisco, CA (NPI 1558310722).
Provider details
- NPI number
- 1558310722
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- A21077 (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
20 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
- 2006-05-08
- Last updated
- 2007-07-09
Frequently asked questions
- What is George Gregory's NPI number?
- George Gregory's National Provider Identifier (NPI) is 1558310722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Gregory's specialty?
- George Gregory is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is George Gregory located?
- George Gregory's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is George Gregory's phone number?
- The practice phone number listed in the NPPES registry for George Gregory is (415) 476-2131.
- Is George Gregory's NPI active?
- Yes — George Gregory's NPI (1558310722) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.