William Horan, PH.D.
NPI 1356450514 · Clinical Psychologist · Los Angeles, CA
William Horan, PH.D. is a Clinical Psychologist provider in Los Angeles, CA (NPI 1356450514).
Provider details
- NPI number
- 1356450514
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PSY 19783 (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
- 2006-08-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Horan's NPI number?
- William Horan's National Provider Identifier (NPI) is 1356450514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Horan's specialty?
- William Horan is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Horan located?
- William Horan's practice location on file with NPPES is 1375 Midvale Ave, Los Angeles, CA 90024-5495.
- What is William Horan's phone number?
- The practice phone number listed in the NPPES registry for William Horan is (310) 312-9977.
- Is William Horan's NPI active?
- Yes — William Horan's NPI (1356450514) 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.