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 130 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. Karan Thinda, PH.DSan Jose, CA 951311265740617
  2. Laura ThodeTemecula, CA 925921083025639
  3. John Tholen, PH.D.Seal Beach, CA 907401063491363
  4. Jennifer Thom, PH.D.Stockton, CA 952101528450459
  5. Angelica Thomas, PSYDRiverside, CA 925071740983576
  6. Courtney Thomas, PSYDOakland, CA 946101194913327
  7. Jennifer Thomas, PSY.D.Sherman Oaks, CA 914231093930406
  8. John Thomas, PH.D.Sacramento, CA 958251427171024
  9. Kristopher Thomas, PH.D.Napa, CA 945581023410867
  10. Lauren Thomas, PSY.D.Encinitas, CA 920241144624743
  11. Paul Thomas, PH.D.San Francisco, CA 941091780997031
  12. Shannon Thomas, PSYDPasadena, CA 911011851120034
  13. William Thomas, PHDSan Diego, CA 921091306065222
  14. Allison Thompson, PHDStanford, CA 943051871815829
  15. Anne Thompson, PH.D.Beverly Hills, CA 902101588824338
  16. Diego Thompson, MALos Angeles, CA 900271962345264
  17. Elham Thompson, PSY.D.Studio City, CA 916041992913867
  18. Ellen Thompson, PH.D.Mammoth Lakes, CA 935461962591818
  19. Kim Thompson, PHDBerkeley, CA 947071023762010
  20. Larry Thompson, PH.D.Los Altos, CA 940241588846901
  21. Linda Thompson, PH.D.Redondo Beach, CA 902771184757957
  22. Megan Thompson, EDDRiverside, CA 925071497215354
  23. Rebecca Thompson, PH.D.Sacramento, CA 958641962880948
  24. Sara Thompson, MALos Angeles, CA 900341194849885
  25. Terri Thompson, PSY.D.Campbell, CA 950081063610566
  26. Victoria Thompson, PHDNewport Beach, CA 926601174129316
  27. Mary Beth Thomsen, PH.D.Berkeley, CA 947101770761538
  28. Douglas Thomson, PH.D.San Diego, CA 921031346557501
  29. Gregory Thomson, PHDSan Jose, CA 951241750366902
  30. Helga Thordarson, PH.D.Patton, CA 923691174575955
  31. Charlise ThornEncinitas, CA 920241538819412
  32. Zoe ThorneSanta Monica, CA 904041164108924
  33. Andrea Thornton, PHDDuarte, CA 910101033295613
  34. Steven Thorp, PH.D.San Diego, CA 921081699883173
  35. Shelby Thorpe, PH.D.Poway, CA 920641063518264
  36. Mara Thorsen, PH.D.Los Angeles, CA 900341346529328
  37. Susan Thrasher, PH.D.Covina, CA 917221033342407
  38. Brandie ThurmanRiverside, CA 925061568268324
  39. Cheryl TienSan Francisco, CA 941041639576143
  40. Brian Tierney, PHD, LP, RCST, CMTSaratoga, CA 950701093856098
  41. Natalie Tierney, MSSherman Oaks, CA 914011841790300
  42. Joseph Tietz, PH.D.Oakland, CA 946181033444542
  43. Kei Tiggs, PHDHemet, CA 925431033252887
  44. Shushan TigranyanLos Angeles, CA 900271649626433
  45. Kimberely Tilley, PSYDSan Diego, CA 921031568597185
  46. Drew TillotsonSan Francisco, CA 941151255098430
  47. Charlotte Tilson, PSY.D.San Francisco, CA 941181023432770
  48. Ben Tilton, PSY.D.Huntington Beach, CA 926471831296722
  49. Susan Timmer, PHDSacramento, CA 958201326218355
  50. Connor Tindall, PSYDBerkeley, CA 947091033697156

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.