NPPES file of Aug 9, 2026

Health Psychologist in California

73 NPPES records list health psychologist with a practice address in California, 0.2 per 100,000 residents, the 13th highest rate of 47. Los Angeles and San Diego 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 103TH0004X · method

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

Los Angeles has the most, 9

  1. Los Angeles9
  2. San Diego9
  3. Santa Barbara4
  4. Martinez3
  5. Oakland3

Health Psychologist records in California

  1. Sarah Parnow, PSYDSanta Clara, CA 950511295378040
  2. Anthony Piccione, PH.D.Martinez, CA 945531487847042
  3. Katja Pohl, PSY.D.Santa Monica, CA 904031013147727
  4. William Polonsky, PHDSan Diego, CA 921211720414014
  5. Amir Ramezani, PHDSacramento, CA 958231194911982
  6. David Rapkin, PH.D.Los Angeles, CA 900771730191784
  7. Veronica Regueiro, PSY.D.San Bernardino, CA 924081003319104
  8. Jade Rijsketic, PHDRedwood City, CA 940631578104378
  9. Katharine RownyBerkeley, CA 947041073918553
  10. Connie Schuler, PH.D.San Rafael, CA 949031528265410
  11. Spencer Sherman, PH.D.Santa Barbara, CA 931031679799753
  12. Sarah Silverman, PSY.D.Redwood City, CA 940631124560354
  13. Simone Smith, PSYCHOLOGISTLos Angeles, CA 900341033474994
  14. Michael SurbanLong Beach, CA 908061619420858
  15. Tiffany Thompson, LMFT, PHD, REEGT,Santa Barbara, CA 931011700242070
  16. Lauren Warner Simmons, PH.D.Los Angeles, CA 900731235338930
  17. Alexandra Wike, PHD, LPManhattan Beach, CA 902661891158937
  18. Danielle Wischenka, PHDCampbell, CA 950081386282762
  19. Amanda Withrow, PH.D.Palo Alto, CA 943061316266968
  20. Sean Woodland, PHDStockton, CA 952101679013890
  21. Jennalee Wooldridge, PHDSan Diego, CA 921301528694601
  22. Genny Zapata, PSY.D.Los Angeles, CA 900331417155367
  23. Elizabeth ZelinskiLos Angeles, CA 900891114201308

Source: CMS NPPES, primary taxonomy 103TH0004X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 13 of 47 per resident

  1. Washington0.2
  2. Michigan0.2
  3. Ohio0.2
  4. California0.2
  5. Arizona0.2
  6. Connecticut0.2
  7. 50 states and D.C.0.1

Source: CMS NPPES, primary taxonomy 103TH0004X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

11.0% of these records appear in a Medicare file, against 14.9% 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. California11.0%
  2. United States14.9%

Health Psychologist records in California, measured

  • In a Medicare file8 of 73 · 11.0% here, 14.9% nationally
  • In the CMS Doctors and Clinicians file12 · 16.4% here, 18.5% nationally
  • Not updated in five years or more41 · 56.2% here, 51.4% nationally
  • Median graduation year2011 · the 12 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103TH0004X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

73 NPPES records list health psychologist (103TH0004X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.1 nationally (50 states and D.C.). Los Angeles has 9 of them (12%).

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. Florida29
  2. New York26
  3. Massachusetts23
  4. Ohio23

States with a similar rate per 100,000

  1. Michigan0.2
  2. Arizona0.2
  3. Washington0.2
  4. Illinois0.1

The largest states

  1. Florida29
  2. New York26
  3. Massachusetts23
  4. Ohio23
  5. Texas22

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.