John B Winchester MD Inc
NPI 1477020949 · Anesthesiology Physician · San Francisco, CA
John B Winchester MD Inc is a Anesthesiology Physician organization in San Francisco, CA (NPI 1477020949).
Provider details
- NPI number
- 1477020949
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jessica Hamilton, Provider Enrollment(714) 347-1053
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
7 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
- 2018-11-01
- Last updated
- 2018-11-01
Frequently asked questions
- What is John B Winchester MD Inc's NPI number?
- John B Winchester MD Inc's National Provider Identifier (NPI) is 1477020949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John B Winchester MD Inc?
- John B Winchester MD Inc is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John B Winchester MD Inc located?
- John B Winchester MD Inc's practice location on file with NPPES is 450 Sutter St Rm 500, San Francisco, CA 94108-3907.
- What is John B Winchester MD Inc's phone number?
- The practice phone number listed in the NPPES registry for John B Winchester MD Inc is (415) 393-9600.
- Who is the authorized official for John B Winchester MD Inc?
- The authorized official listed on John B Winchester MD Inc's NPPES record is Jessica Hamilton, Provider Enrollment. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John B Winchester MD Inc's NPI active?
- Yes — John B Winchester MD Inc's NPI (1477020949) is active in the NPPES registry as of the last update on 2018-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.