William Horton, PSY D
NPI 1215205547 · Psychologist · San Francisco, CA
William Horton, PSY D is a Psychologist provider in San Francisco, CA (NPI 1215205547).
Provider details
- NPI number
- 1215205547
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY D
- Sex
- Male
- Sole proprietor
- No
- License
- LPY11 (FL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
14 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
- 2011-12-01
- Last updated
- 2024-07-18
- Certified
- 2024-07-18
Frequently asked questions
- What is William Horton's NPI number?
- William Horton's National Provider Identifier (NPI) is 1215205547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Horton's specialty?
- William Horton is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is William Horton located?
- William Horton's practice location on file with NPPES is 580 California St Fl 12, San Francisco, CA 94104-1033.
- What is William Horton's phone number?
- The practice phone number listed in the NPPES registry for William Horton is (941) 408-8551.
- Is William Horton's NPI active?
- Yes — William Horton's NPI (1215205547) is active in the NPPES registry as of the last update on 2024-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.