NPPES file of Aug 9, 2026

Psychologist in California

7,304 NPPES records list psychologist with a practice address in California, 19 per 100,000 residents, the 13th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 138 of 147.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103T00000X · 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, 671

  1. Los Angeles671
  2. San Francisco516
  3. San Diego431
  4. Oakland257
  5. Sacramento165

Psychologist records in California

  1. Sherry Warner, PH.D.Monterey, CA 939401386807279
  2. Amy Warren, PSY.D.Santa Clarita, CA 913501750630604
  3. Christine Warren, PSYDNewport Beach, CA 926601104374305
  4. Eileen Warren, PH.D.Paso Robles, CA 934461366606832
  5. Jeffry Warren, PHDLa Jolla, CA 920371700496080
  6. Kelly Warren, PSYDHermosa Beach, CA 902541891105193
  7. John Warrington, PH.D.Duarte, CA 910101639188535
  8. Elicia Wartman, PHDOrange, CA 928681114621745
  9. Anna Washington, PHDSacramento, CA 958201821439068
  10. Sarah WasnickBerkeley, CA 947031922450303
  11. Heather Wassarman, PH.D.San Francisco, CA 941141508257064
  12. David Wasserman, PH.D.Ventura, CA 930031912999806
  13. David Wasserman, PHDSan Francisco, CA 941071659470540
  14. Melissa Wasserman, PSYDTarzana, CA 913561275177180
  15. Connor WassonEncinitas, CA 920241285596494
  16. James Waterman, PH.D.Bakersfield, CA 933011275673857
  17. Laura WatersPasadena, CA 911071013322965
  18. Stacey Waters, MANorwalk, CA 906501861826596
  19. Allison Waterworth, PSY.D.San Francisco, CA 941151659431542
  20. Rachel Watkins, PSY.D.Oakland, CA 946011487171468
  21. Katey WatryIrvine, CA 926121558606749
  22. Paul WatskySan Francisco, CA 941231831460179
  23. Daniel Watson, PH. D.Palm Desert, CA 922601134234289
  24. Erin Watson, PSYDStanford, CA 943051265888739
  25. Katherine WatsonConcord, CA 945201295666105
  26. Limor Watson, PSY.DFolsom, CA 956301831794510
  27. Philip WatsonSan Diego, CA 921301619477767
  28. Sylvia Watson, PHDUnion City, CA 945871609943356
  29. James WattLos Angeles, CA 900101053252569
  30. Ann Watters, PHDSan Mateo, CA 944011326161068
  31. Mary Watts, PH.D.North Hollywood, CA 916061154580231
  32. Valerie Watts, PSY.DVentura, CA 930031790523025
  33. Deanna Waugh, PSY.D.Selma, CA 936621760648604
  34. Jacqlyn Wax, PSY.DMission Viejo, CA 926911063033611
  35. Renata Way, PSYDOakland, CA 946011588972293
  36. Tari Webber, PSY.DSanta Rosa, CA 954011205117876
  37. Erica WeberSan Diego, CA 921031811281371
  38. Frank Weber, PH.D.Sacramento, CA 958251922106178
  39. Justine Weber, PSY.DNewport Beach, CA 926601184267254
  40. Laure Weber, PSYDLos Angeles, CA 900241851473789
  41. Richard Weber, PHDFountain Valley, CA 927081841397734
  42. Sarah WeberOxnard, CA 930331730782020
  43. Alexandra Webster, PSY.D.Chino, CA 917101205559473
  44. Bruce Webster, PHDNewport Beach, CA 926601538130406
  45. Te'Arah Webster, PSYDCompton, CA 902211932862406
  46. Chelsea Weeks, PHDSan Diego, CA 921271346930237
  47. Benjamin WegnerCulver City, CA 902301275190761
  48. Helena Weil, PHDCastro Valley, CA 945461063525343
  49. Wendy Weil, PH.D.Albany, CA 947071285956375
  50. Katrina WeilbacherSanta Barbara, CA 931101215224811

Source: CMS NPPES, primary taxonomy 103T00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 13 of 51 per resident

  1. West Virginia20
  2. Nebraska19
  3. Maryland19
  4. California19
  5. Maine19
  6. North Dakota18
  7. 50 states and D.C.14

Source: CMS NPPES, primary taxonomy 103T00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

6.2% of these records appear in a Medicare file, against 10.1% 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. California6.2%
  2. United States10.1%

Psychologist records in California, measured

  • In a Medicare file453 of 7,304 · 6.2% here, 10.1% nationally
  • In the CMS Doctors and Clinicians file1,058 · 14.5% here, 18.0% nationally
  • Not updated in five years or more4,318 · 59.1% here, 63.9% nationally
  • Median graduation year2005 · the 1,058 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103T00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,304 NPPES records list psychologist (103T00000X) as their primary taxonomy with a practice address in California: 19 per 100,000 residents against 14 nationally (50 states and D.C.). Los Angeles has 671 of them (9%).

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 York5,045
  2. Pennsylvania2,687
  3. Michigan2,549
  4. Massachusetts2,367

States with a similar rate per 100,000

  1. Maine18.6
  2. Maryland19.1
  3. North Dakota18.2
  4. Nebraska19.3

The largest states

  1. New York5,045
  2. Pennsylvania2,687
  3. Michigan2,549
  4. Massachusetts2,367
  5. Florida2,202

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.