NPPES file of Aug 9, 2026

Mark Katz, PH.D.

Clinical Psychologist · San Diego, CA

Mark Katz, PH.D. is a clinical psychologist with a practice address in San Diego, California, and NPI 1457559494, issued on Jul 10, 2007. Check the license (California PSY4866, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457559494
Name
Mark Katz
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY4866 CA
Self-reported in NPPES; status is on the state search
Practice location
3754 Clairemont Dr, San Diego, CA 92117
Phone
(619) 276-6912
Enumerated
Jul 10, 2007
Record last updated
Jul 10, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(858) 483-3567
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3754 Clairemont Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amy Ellis, PSYDClinical Psychologist1912038696
  2. Terri Fong, LCSWClinical Social Worker1720245350
  3. Gretchen Gillingham, PHDClinical Neuropsychologist1841179017
  4. Meg Lawrence, M.D.Child & Adolescent Psychiatry Physician1427148733
  5. Danielle Miller, PH.D.Clinical Psychologist1720283971

Verify Mark Katz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY4866
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Mark Katz among 12,647 clinical psychologist records in California

Mark Katz, 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 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 57% 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).

983 clinical psychologist records list a practice address in San Diego

They are 983 of the 52,937 NPPES records with a practice address in San Diego, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Joseph Casciani, PHDSan Diego, CA 921171316975717
  2. Cynthia Dolzonek, PH.D.San Diego, CA 921171598833501
  3. Amy Ellis, PSYDSan Diego, CA 921171912038696
  4. Megan Houseknecht, PSY.D.San Diego, CA 921171801089032
  5. Neda Khodaparast, PSYDSan Diego, CA 921171255594677
  6. Gordon Maclean, PH.D.San Diego, CA 921171033184999
  7. Danielle Miller, PH.D.San Diego, CA 921171720283971
  8. Sara Patterson, PHD.San Diego, CA 921171538329768

Common questions

What is Mark Katz, PH.D.'s NPI number?

Mark Katz, PH.D.'s National Provider Identifier (NPI) is 1457559494, issued on Jul 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Katz, PH.D. located?

The NPPES record lists a practice address at 3754 Clairemont Dr, San Diego, CA, 92117. Phone: (619) 276-6912. Providers update this record themselves, so call before visiting.

How can I verify Mark Katz, PH.D.'s license?

NPPES lists California license number PSY4866, 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.