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 231 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. Elizabeth Twamley, PHDSan Diego, CA 921031700089141
  2. Donald TweedieLancaster, CA 935361952744401
  3. Stefanie Tweedly, PSY.D.Newport Beach, CA 926601033348230
  4. David Tweedy, PH.D.Carlsbad, CA 920081336295500
  5. Lisa Twilling, PH.D.San Francisco, CA 941181043369085
  6. Geoff Twitchell, PH.D.Fresno, CA 937031386658482
  7. Katherine Twohy, PH DNorwalk, CA 906501316993439
  8. Lori Tyler, PHDWhittier, CA 906021841388055
  9. Nancy Tylim, PSYDCalabasas, CA 913021669488987
  10. Robert Tyminski, PSYCHOLOGISTSan Francisco, CA 941181902895410
  11. Linda Tyrrell, PSY.D.Pasadena, CA 911061194962159
  12. Seanne Tyson, PH.D.Hawthorne, CA 902501992964787
  13. Pauline UbaniCerritos, CA 907031265076715
  14. Christopher Udell, PHDSan Diego, CA 921341477880425
  15. Toshiaki Udo, PH.D.Pasadena, CA 911051063524700
  16. Heather Udy, PSYDOakland, CA 946091497918718
  17. Gale Uhl, PH.D.Campbell, CA 950081871845594
  18. Stephanie Uhl, PSYDOrinda, CA 945631073945523
  19. Brian Uhlin, PH.D.Oakland, CA 946111669715785
  20. Soo Uhm, PHDSan Mateo, CA 944021265962146
  21. Chantel Ulfig, PH.D.Palo Alto, CA 943041124789029
  22. Meera Ullal, PHDSacramento, CA 958171104345743
  23. Gordon Ulrey, PH.D.Davis, CA 956161700033040
  24. Gillian Ulrich, PHDNorth Hills, CA 913431275366379
  25. Ivone Umar GhazalehThousand Oaks, CA 913621265738645
  26. Justin Underwood, PSY.D.Los Angeles, CA 900101669806162
  27. Arlene Unger, PHDDana Point, CA 926291508961863
  28. Alexandra Union, PHDSonora, CA 953701003245895
  29. Dennis Unruh, PHDMadera, CA 936381003033721
  30. Donald Unruh, PHDGlendora, CA 917401154365435
  31. Frank Upshaw, PH.D.Red Bluff, CA 960801861801979
  32. Eugene Urbain, PH.D.Los Altos, CA 940241215051735
  33. Alison Urbank, PH.D.Laguna Niguel, CA 926771902145584
  34. Alison Urdan, M.A.Oakland, CA 946111487783791
  35. Oscar Ureno, B.A.Oakland, CA 946031376722793
  36. Cesar Ureta, PSY.D.Palm Springs, CA 922621356498992
  37. Janet Urquizu, LCS21386West Hills, CA 913071114043783
  38. Michael Uthoff, PSYDGlendora, CA 917411639683295
  39. Jim UticSolana Beach, CA 920751538249313
  40. Joni Utley, PSYDSan Francisco, CA 941211679902274
  41. Jennifer Utley Buensuceso, PSY.D.Patton, CA 923691720361926
  42. Brenda Vaccaro, MA, PSYDSacramento, CA 958111184934911
  43. Jennifer Vacovsky, PSYDAtascadero, CA 934221891965950
  44. Samira Vafadar, PSYDNewport Beach, CA 926601689963514
  45. Raymond Vagas, PH.D.Costa Mesa, CA 926261316330459
  46. Shadi Vahedifar, PSY.DBeverly Hills, CA 902121265273502
  47. Tabasom Vahidi, PH.D.Los Angeles, CA 900241801027594
  48. Amy Vail, PSY.D.Olympic Valley, CA 961461689802928
  49. Anthony Vail, PH.D.Escondido, CA 920251659648533
  50. Ashley Vaillancourt, PHDLong Beach, CA 908221518633148

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.