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Spencer Williams, B.A.
NPI 1790806362 · Research Study Specialist · San Francisco, CA
Spencer Williams, B.A. is a Research Study Specialist provider in San Francisco, CA (NPI 1790806362).
Provider details
- NPI number
- 1790806362
- Entity type
- Individual
- Primary specialty
- Research Study SpecialistOther Service Providers
- Credential
- B.A.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(83/100 index)
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
83% 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
755 S Van Ness Ave
San Francisco, CA 94110-1908
Phone: (415) 642-4517
Fax: (415) 695-6961
Street-level locationGet directions
Mailing address
1708 Filbert St Apt 4
San Francisco, CA 94123-3629
Registry dates
- Enumerated
- 2007-04-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Spencer Williams's NPI number?
- Spencer Williams's National Provider Identifier (NPI) is 1790806362, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Williams's specialty?
- Spencer Williams is listed in the NPPES registry with a primary specialty of Research Study Specialist (Other Service Providers).
- Where is Spencer Williams located?
- Spencer Williams's practice location on file with NPPES is 755 S Van Ness Ave, San Francisco, CA 94110-1908.
- What is Spencer Williams's phone number?
- The practice phone number listed in the NPPES registry for Spencer Williams is (415) 642-4517.
- Is Spencer Williams's NPI active?
- Yes — Spencer Williams's NPI (1790806362) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.