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 244 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. Michele Wilkens, PSY.D.Pasadena, CA 911011942324314
  2. Erik Wilkerson, PSYDMountain View, CA 940401609576172
  3. Ashley WilkinsPasadena, CA 911061174807804
  4. Beth Wilkins, PSY.D.Fresno, CA 937281033146360
  5. Stacy Wilkins, PH.D.Los Angeles, CA 900731629175583
  6. Erin Wilkinson, PSY.DFt Irwin, CA 923101760431183
  7. Asha Wilkus-Stone, PSY.D.Santa Barbara, CA 931011861826612
  8. Sandra Willard, PH.D.San Francisco, CA 941101760591499
  9. Alisa Willens-Davis, PH.D.Oceanside, CA 920541376637926
  10. Matthew Willerick, PH.D.Travis Afb, CA 945351497082390
  11. Angela Williams, PSY.DEncino, CA 913161831382696
  12. Ashley Williams, PSYDHelendale, CA 923421437921764
  13. Aya Williams, PHDSan Mateo, CA 944011568254829
  14. Camila Williams, PH.D.Torrance, CA 905011790040418
  15. Carol Williams, PH.D.Los Altos, CA 940241609806553
  16. Carolyn Williams, PHDEncino, CA 914361326149527
  17. Christian Williams, PHDMenlo Park, CA 940251386254100
  18. Elizabeth Williams, PSYCHOLOGISTBonita, CA 919021669935136
  19. Emily Williams, PSY.D.Long Beach, CA 908031477009348
  20. Eshawn Williams, PSY.D.Carson, CA 907461447537303
  21. Halie Williams, PSYDRepresa, CA 956711922351832
  22. Heather Williams, PSYDBerkeley, CA 947101659561652
  23. Jacqueline Williams, PSY.D.Woodland Hills, CA 913641134153216
  24. Jessica Williams, PSY.D.Moreno Valley, CA 925531063790483
  25. Jessica Williams, PSY.D.Sacramento, CA 958251144555343
  26. John Williams, PHDLong Beach, CA 908071316280696
  27. John Williams, PSY.D.Livermore, CA 945501265600662
  28. Jonathan Williams, PHDSan Diego, CA 921031700458056
  29. Joshua Williams, PSY.D.Westlake Village, CA 913621285863613
  30. Julie Williams, PSY.D.Walnut Creek, CA 945961265748636
  31. Karen Williams, PH.D.Los Angeles, CA 900641821176751
  32. Karen Williams, PH.D.Rancho Cucamonga, CA 917301619004173
  33. Kathryn Williams, PH.D.San Diego, CA 921031023249679
  34. Linda Williams, PHDSan Diego, CA 921301336405117
  35. Lori Williams, PH.DFresno, CA 937041255632535
  36. Marian Williams, PH.D.Los Angeles, CA 900271689711202
  37. Martin Williams, PH.D.Cupertino, CA 950141235200957
  38. Melanie Williams, PSYDAtascadero, CA 934221053154161
  39. Nona Williams, PSY.D.Los Angeles, CA 900251427094135
  40. Rebecca Williams, PH.D.San Diego, CA 921791891100939
  41. Susan Williams, PH.D.Beverly Hills, CA 902101811264880
  42. Travis Williams, PSYDElk Grove, CA 957581417045923
  43. Bennett Williamson, PHDLos Angeles, CA 900391326181025
  44. Phyllis Williamson, PH.D.Sacramento, CA 958161477634087
  45. Rickey Williamson, PHDLos Angeles, CA 900451578619417
  46. Tracy WilliamsonIrvine, CA 926181285834424
  47. Kendra Williby, PSYDSherman Oaks, CA 914031306654090
  48. Michele Willingham, PSY.D.Fullerton, CA 928311225103609
  49. Clare Willis, PSYDSan Francisco, CA 941141043888647
  50. James Willis, PH.DSacramento, CA 958211760785455

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.