William Horan, PH.D.
Clinical Psychologist · Los Angeles, CA
William Horan, PH.D. is a clinical psychologist with a practice address in Los Angeles, California, and NPI 1356450514, issued on Aug 30, 2006. Check the license (California PSY 19783, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Horan
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY 19783 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1375 Midvale Ave, Los Angeles, CA 90024
- Phone
- (310) 312-9977
- Enumerated
- Aug 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify William Horan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY 19783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Horan among 12,647 clinical psychologist records in California
William Horan, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,268 clinical psychologist records list a practice address in Los Angeles
They are 1,268 of the 69,537 NPPES records with a practice address in Los Angeles, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Los Angeles → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Debra Borys, PHDLos Angeles, CA 900241336157387
- Linda Ercoli, PH.DLos Angeles, CA 900241821104522
- Cheryl Feldmann, PH.D.Los Angeles, CA 900241295749901
- Susan Fisher, PSY.D.Los Angeles, CA 900241730117094
- Ali Ghassemi, PSY.D.Los Angeles, CA 900241942224381
- Charles Hinkin, PHDLos Angeles, CA 900241619900115
- Ruth Lerner, PH.D.Los Angeles, CA 900241225052723
- Bahman Rezaipour, PHDLos Angeles, CA 900241447231246
Common questions
What is William Horan, PH.D.'s NPI number?
William Horan, PH.D.'s National Provider Identifier (NPI) is 1356450514, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Horan, PH.D. located?
The NPPES record lists a practice address at 1375 Midvale Ave, Los Angeles, CA, 90024. Phone: (310) 312-9977. Providers update this record themselves, so call before visiting.
How can I verify William Horan, PH.D.'s license?
NPPES lists California license number PSY 19783, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.