Jonathan David Horowitz, PH.D.
Clinical Psychologist · San Francisco, CA
Jonathan David Horowitz, PH.D. is a clinical psychologist with a practice address in San Francisco, California, and NPI 1083947469, issued on Sep 16, 2009. Check the license (California PSY24198, 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
- Jonathan David Horowitz
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY24198 CA
Self-reported in NPPES; status is on the state search - Practice location
- 55 New Montgomery St, San Francisco, CA 94105
- Phone
- (415) 799-3688
- Enumerated
- Sep 16, 2009
- Record last updated
- Sep 29, 2014 (not updated in 12 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 →
Also registered at 55 New Montgomery St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adam Blum, PSY.D.Clinical Psychologist1205115185
- Mark Claycomb, LCSWPsychologist1790791796
- Catherine Corcoran, PSY.D.Clinical Psychologist1134420409
- Katherine Czesak, PH.D.Clinical Psychologist1073636783
- Milam Freitag, PH.D.Psychologist1225106628
- Dwight Grisham, M.A.,ED.S., ED.D.Cognitive & Behavioral Psychologist1689897068
Verify Jonathan David Horowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY24198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jonathan David Horowitz among 12,647 clinical psychologist records in California
Jonathan David Horowitz, 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 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 46% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2014 · 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).
802 clinical psychologist records list a practice address in San Francisco
They are 802 of the 38,143 NPPES records with a practice address in San Francisco, 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 San Francisco → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Cortney Beasley, PSYDSan Francisco, CA 941051548546203
- Adam Blum, PSY.D.San Francisco, CA 941051205115185
- Sand Chang, PHDSan Francisco, CA 941051578712105
- Catherine Corcoran, PSY.D.San Francisco, CA 941051134420409
- Katherine Czesak, PH.D.San Francisco, CA 941051073636783
- Jessica Garibaldi, PSY.D.San Francisco, CA 941051861039208
- Leigh LyndonSan Francisco, CA 941051982834115
- Saara Muscat, PSYDSan Francisco, CA 941051114431426
Common questions
What is Jonathan David Horowitz, PH.D.'s NPI number?
Jonathan David Horowitz, PH.D.'s National Provider Identifier (NPI) is 1083947469, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan David Horowitz, PH.D. located?
The NPPES record lists a practice address at 55 New Montgomery St, San Francisco, CA, 94105. Phone: (415) 799-3688. Providers update this record themselves, so call before visiting.
How can I verify Jonathan David Horowitz, PH.D.'s license?
NPPES lists California license number PSY24198, 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.