NPPES file of Aug 9, 2026

Clinical Psychologist in California

12,647 NPPES records list clinical psychologist with a practice address in California, 32 per 100,000 residents, the 7th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 34 of 253.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103TC0700X · 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, 1,268

  1. Los Angeles1,268
  2. San Diego983
  3. San Francisco802
  4. Oakland354
  5. Pasadena293

Clinical Psychologist records in California

  1. Alexandra Carry, PSYDSan Diego, CA 921341477270072
  2. Ann Carson, PH.D.San Diego, CA 921231942251319
  3. Melissa Carson, PSY.D.Los Angeles, CA 900271942326509
  4. Christopher Carstens, PH.D.San Diego, CA 921211215924014
  5. Laura Carstensen, PH.D.Berkeley, CA 947021841467214
  6. Allison Carter, PSY.D.Calabasas, CA 913021902012891
  7. Amanda Carter, PSYDSanta Barbara, CA 931011043733678
  8. Brent Carter, PH.DModesto, CA 953501700945748
  9. Christian Carter, PH.D.San Diego, CA 921341649588724
  10. Deborah Carter, ED.DPlacerville, CA 956671518268036
  11. Frank Carter, PH.D.San Diego, CA 921221730761289
  12. Julia Carter, PH.D.San Francisco, CA 941021831478817
  13. Marybeth CarterLos Angeles, CA 900241174754378
  14. Nancy Carter, PSCYH INTERNSan Francisco, CA 941151306036710
  15. Nyiema Carter, PSYDCarson, CA 907461699960021
  16. Shaina CarterOceanside, CA 920561245717503
  17. Joy Carter-Chastain, PH.D.Los Angeles, CA 900251992740807
  18. Candace Cartmill-Nishimoto, PH.D.Orange, CA 928681821186537
  19. Carol Caruso, PHDTracy, CA 953761336202597
  20. Steven Caruso, PHD, LP, LMFT, MABlythe, CA 922251417157058
  21. Martin Cary, PH.DSan Diego, CA 921221972655603
  22. Pamela Casacuberta, PHDSonoma, CA 954761447606892
  23. Adrianne Casadaban, PH.D.Lafayette, CA 945491508082298
  24. Kaitlin Casaletto, PHDSan Francisco, CA 941431558845370
  25. Maegan Casanova, PSYDSan Diego, CA 921081982133377
  26. Joseph Casciani, PHDSan Diego, CA 921171316975717
  27. Samantha Case, PSY.D.Los Alamitos, CA 907201366605685
  28. James Casey, PHDMenlo Park, CA 940251700355898
  29. Adam Cash, PSY.D.Palm Springs, CA 922641881733681
  30. Nicholas Caskey, PH.D.Los Angeles, CA 900731114962305
  31. Jennifer Casper, PSYDBerkeley, CA 947091710303102
  32. Sherry Casper, PSY D /PHDSan Diego, CA 921261255668455
  33. Hen Caspi, PSYDBakersfield, CA 933091568844207
  34. Jeffrey Cass, PSY.D.Sacramento, CA 958231497815906
  35. Lucinda Cassady, PH.DSan Diego, CA 921021144359837
  36. Marissa Cassar, PHDSanta Clara, CA 950511528845831
  37. Jennifer Cassatly, PSYDTorrance, CA 905021144349739
  38. Damian Cassells-Jones, PSY.D.Richmond, CA 948011770792459
  39. James Cassidy, PH.DTorrance, CA 905051790791762
  40. Erin Cassidy Eagle, PH.D.Palo Alto, CA 943041396121653
  41. Amanda Cassil, PHDPasadena, CA 911011609275635
  42. Timothy Cassutt, PH.D.Pasadena, CA 911071881726867
  43. Mireille Castan, PSY.D.Patton, CA 923691710087770
  44. Susana Castellanos, PHDLoma Linda, CA 923571538259148
  45. Justin Castello, PH.D.Berkeley, CA 947201912364720
  46. Steven Castellon, PH.D.Los Angeles, CA 900731316030901
  47. Olga Castillo, PSY.D.Claremont, CA 917111801939731
  48. Sergio Castillo, PH.D.Los Angeles, CA 900031174602866
  49. Eleanor Castillo Sumi, PHD, BCBA-DCampbell, CA 950081285794602
  50. Natalie Castriotta, PH.D.San Diego, CA 921611891926515

Source: CMS NPPES, primary taxonomy 103TC0700X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 7 of 51 per resident

  1. Massachusetts45
  2. Hawaii45
  3. New York34
  4. California32
  5. Illinois31
  6. Connecticut31
  7. 50 states and D.C.20

Source: CMS NPPES, primary taxonomy 103TC0700X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

8.7% of these records appear in a Medicare file, against 12.2% 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. California8.7%
  2. United States12.2%

Clinical Psychologist records in California, measured

  • In a Medicare file1,104 of 12,647 · 8.7% here, 12.2% nationally
  • In the CMS Doctors and Clinicians file2,425 · 19.2% here, 22.4% nationally
  • Not updated in five years or more8,008 · 63.3% here, 65.3% nationally
  • Median graduation year2006 · the 2,424 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103TC0700X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

12,647 NPPES records list clinical psychologist (103TC0700X) as their primary taxonomy with a practice address in California: 32 per 100,000 residents against 20 nationally (50 states and D.C.). Los Angeles has 1,268 of them (10%).

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 York6,558
  2. Illinois3,947
  3. Massachusetts3,185
  4. Florida2,980

States with a similar rate per 100,000

  1. Connecticut30.8
  2. Michigan29.5
  3. Colorado28.1
  4. Oregon27.0

The largest states

  1. New York6,558
  2. Illinois3,947
  3. Massachusetts3,185
  4. Florida2,980
  5. Michigan2,965

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.