William Thomas, PH.D.
NPI 1396895124 · Clinical Psychologist · San Francisco, CA
William Thomas, PH.D. is a Clinical Psychologist provider in San Francisco, CA (NPI 1396895124).
Provider details
- NPI number
- 1396895124
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY8611 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2007-01-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Thomas's NPI number?
- William Thomas's National Provider Identifier (NPI) is 1396895124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thomas's specialty?
- William Thomas is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Thomas located?
- William Thomas's practice location on file with NPPES is 450 Winston Dr, San Francisco, CA 94132-1729.
- What is William Thomas's phone number?
- The practice phone number listed in the NPPES registry for William Thomas is (415) 566-2621.
- Is William Thomas's NPI active?
- Yes — William Thomas's NPI (1396895124) 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.