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 229 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. Darlene Townes, PSYDSan Diego, CA 921301376985473
  2. Benjamin Towns, PH.D.San Marcos, CA 920961780876516
  3. Mark Towns, PH.DGardena, CA 902471114224680
  4. Laura Townsend, PSY.D.Los Angeles, CA 900271851708689
  5. Richard Townsend, PH.D.National City, CA 919501972526812
  6. Leighko Toyoshima, PSY.D.Oakland, CA 946181629295696
  7. Tom Trabin, PH.F.El Cerrito, CA 945301598980765
  8. Kendra Tracy, PH.D.Loma Linda, CA 923571548543382
  9. Lynn Tracy, PHDOakland, CA 946181083320055
  10. Sarah Trafican, PSY.D.Oakland, CA 946021457549511
  11. Zaccario Tramontana, P.H.DLa Jolla, CA 920371356658223
  12. Joey Trampush, PH.D.Los Angeles, CA 900331467868786
  13. Ann TranSan Francisco, CA 941141205091287
  14. Carolee Tran, PH.DSacramento, CA 958141992730865
  15. Hung TranLos Angeles, CA 900891528932175
  16. Janet Tran, PSY.D.Long Beach, CA 908071972767259
  17. Jenny Tran, PHDLos Angeles, CA 900951245902857
  18. Lily Tran, PH.D.Poway, CA 920641497778062
  19. Marenda Tran, PH.D.Los Angeles, CA 900201902053424
  20. Shannon Tran, PHDUnion City, CA 945871609938877
  21. Frank Trankina, PH.D.Montclair, CA 917631528283785
  22. Bayla TravisOakland, CA 946091700179553
  23. Michael Treanor, PH.D.Los Angeles, CA 900241689172173
  24. Michael Tredinnick, PH.D.Culver City, CA 902301619007648
  25. Elizabeth Treitel, PSYDCupertino, CA 950141245045624
  26. Julia Treland, PH.D.Gold River, CA 956701720241250
  27. Lindsay Trent, PHDRedwood City, CA 940631326350729
  28. Amelia Treto, PSYD.Santa Ana, CA 927051457403123
  29. Linda Trettin, PH.D.Folsom, CA 956301356669287
  30. Marne Trevisano, EDD PHD LICENSED PSYAtascadero, CA 934221770677700
  31. Eric Trevizu, PSYDSusanville, CA 961301093701419
  32. Rosalba Trias-Ruiz, PH.D.Whittier, CA 906021376663179
  33. Stephen Trichter, PSY.D.San Francisco, CA 941021285832410
  34. Audrey Tricou, PHDLos Angeles, CA 900951265034870
  35. Julie Trim, PH.D.San Diego, CA 921211851697205
  36. Ryan Trim, PH.D.San Diego, CA 921611023255015
  37. Vanessa Trine, LPCC #11351Irvine, CA 926121356084156
  38. Aaron Trinh, PSY.D.San Francisco, CA 941021609196310
  39. Jordyn Trockman, PSY.D.Santa Clarita, CA 913501124351267
  40. John Trojanowski, PSYDBerkeley, CA 947091073804910
  41. Christy Trombley, PSYDVacaville, CA 956961669668257
  42. Lorena Tron Aguinaco, AMFTEncino, CA 914361528921962
  43. Shirley Trosino, PH.D.Mission Viejo, CA 926911306969027
  44. Kathleen Trotta, PSY.D.Atascadero, CA 934221699385294
  45. Todd Troutman, PSYDSan Francisco, CA 941031104053537
  46. Katie Troxell, PHDLos Angeles, CA 900241730940586
  47. Stephen Trudeau, PSY.DWestlake Village, CA 913611508980921
  48. Lynda Truesdell, PSYDMission Viejo, CA 926911679982649
  49. Ruth Truglio, PH.D.Torrance, CA 905011265504872
  50. Jennifer Trujillo, PHDIrvine, CA 926041821372020

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.