NPPES file of Aug 9, 2026

Intellectual & Developmental Disabilities Psychologist in California

71 NPPES records list intellectual & developmental disabilities psychologist with a practice address in California, 0.2 per 100,000 residents, the 24th highest rate of 45. San Diego and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103TM1800X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Diego has the most, 5

  1. San Diego5
  2. Los Angeles4
  3. Pomona4
  4. Westminster3
  5. Atascadero2

Intellectual & Developmental Disabilities Psychologist records in California

  1. Samira Raji, M.AMarina Del Rey, CA 902921821877879
  2. Debbie RiezaOakland, CA 946091013377621
  3. Cassandra Sanchez, PSYDMenlo Park, CA 940251285003665
  4. Haleigh Scott, PH.D.Sacramento, CA 958251477921450
  5. Kellen ScriffinyMonterey, CA 939401952695405
  6. Christy Suh, LEPLa Canada, CA 910111265381693
  7. Suzanne Swezea, M.S, L.E.P. #4559Huntington Beach, CA 926471659172427
  8. Jeffrey Teuber, PHDAtascadero, CA 934231003868555
  9. Scott Thompson, ED.S, PPSSan Clemente, CA 926731740066869
  10. Patrick TonWestminster, CA 926831356590483
  11. Sarah Vakharia, M.ED., ED.S., LEPSan Diego, CA 921211477383610
  12. Kevin Van Laeken, BCBA, LEPSanta Clara, CA 950541104299734
  13. Litzi Villarruel ValdovinosCorona, CA 928791659093904
  14. Rita WalkerColton, CA 923241386371383
  15. Geri Wexler, PSYCHOLOGISTLos Angeles, CA 900341174755540
  16. Alice Wiedenhoff, PHDCarlsbad, CA 920091053524082
  17. James Wilkes, PH.D.San Diego, CA 921231386787091
  18. Bruce Williams, PH.D.Pasadena, CA 911061841492675
  19. Dyan Yacovelli, PSYDAtascadero, CA 934221497787972
  20. Ying Zheng, LFMTNorwalk, CA 906501376086306
  21. Isabela Zolhof PanissetCampbell, CA 950081558192187

Source: CMS NPPES, primary taxonomy 103TM1800X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 24 of 45 per resident

  1. Oregon0.2
  2. Nevada0.2
  3. Pennsylvania0.2
  4. California0.2
  5. Georgia0.2
  6. Missouri0.2
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 103TM1800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.8% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California0.0%
  2. United States0.8%

Intellectual & Developmental Disabilities Psychologist records in California, measured

  • In a Medicare file0 of 71 · 0.0% here, 0.8% nationally
  • In the CMS Doctors and Clinicians file2 · 2.8% here, 1.7% nationally
  • Not updated in five years or more31 · 43.7% here, 58.7% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103TM1800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

71 NPPES records list intellectual & developmental disabilities psychologist (103TM1800X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.3 nationally (50 states and D.C.). San Diego has 5 of them (7%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New York66
  2. Florida56
  3. Ohio91
  4. Texas49

States with a similar rate per 100,000

  1. Georgia0.2
  2. Pennsylvania0.2
  3. Missouri0.2
  4. Indiana0.2

The largest states

  1. Delaware159
  2. Ohio91
  3. New York66
  4. Florida56
  5. Texas49

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.