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 102 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. Martin Perez, PHDDuarte, CA 910101851462469
  2. Simone Perez, PHDSan Francisco, CA 941151295887768
  3. Yaritza PerezNorthridge, CA 913251710713615
  4. Luis Perez Ramirez, PSY.D.San Francisco, CA 941041770670200
  5. Karla Perez-Pussman, PH.D.Brea, CA 928211780701847
  6. Aaron Perkins, PH.D.Visalia, CA 932921083382709
  7. Kristen Perkins, PSYDNapa, CA 945581760804959
  8. Gabrielle PeroSan Diego, CA 921011639776636
  9. Lea Perry, LMFTVenice, CA 902911649992694
  10. Kaleigh PerselBakersfield, CA 933071922979426
  11. Laura Pescione, PH.DEncino, CA 914361306962311
  12. Jayme Peta, PHDSan Rafael, CA 949011205278413
  13. Douglas Peter-Frank, PSY.D.San Rafael, CA 949011659633923
  14. Jeremy PetermanCorte Madera, CA 949251841683257
  15. Daniel Peters, PH.D.Walnut Creek, CA 945961548312275
  16. David Peters, PSY.D.Atascadero, CA 934221942441969
  17. Katherine Peters, PHDLos Angeles, CA 900251588775886
  18. Robin Peters, PSY.D.Sacramento, CA 958151871656892
  19. Angela Petersen, PH.D.La Jolla, CA 920371831547496
  20. Laura PetersenSan Jose, CA 951121063870806
  21. Lisa Petersen, PH.D.Sacramento, CA 958251699813923
  22. Timothy Petersen, PSY.D.Encino, CA 914361104070119
  23. Carolyn Peterson, PH.D.Auburn, CA 956021548442874
  24. Christine Peterson, PH.D.Santa Barbara, CA 931081366522419
  25. Craig Peterson, PSY. D.Glendale, CA 912031588698641
  26. Denae Peterson, PSYDElk Grove, CA 957581750684148
  27. George Peterson, PH.D.Forest Knolls, CA 949331669917399
  28. Grace Peterson, PHDSan Diego, CA 921611518657154
  29. Jeanne Peterson, PH.D.San Diego, CA 921021114075397
  30. Veronique Peterson, PH.D.Yuba City, CA 959931508114190
  31. Laura Petracek, PH.D.San Francisco, CA 941231265569362
  32. Yasmin Petree, PSYD.San Diego, CA 921031154574598
  33. Lori Petrie, PHDTorrance, CA 905031922151927
  34. Rachel PetrieSan Diego, CA 921031538001151
  35. Edgar PetrosyanLos Angeles, CA 900101306146287
  36. Anne Petrovich, PHDFresno, CA 937041831310457
  37. Michael Petrovich, PH.D.Fresno, CA 937261104985928
  38. Gina Petrus, PHDCommerce, CA 900401336410596
  39. Patricia Petterson, PH.D.San Diego, CA 921011558707398
  40. Regina Petterson, PSY.D.Los Angeles, CA 900491417059965
  41. Patrick Petti, PH.D.Pleasanton, CA 945881306042114
  42. Eric Pevney, PHDSan Marcos, CA 920781689920902
  43. Jillian Pexa, PSY.D.Torrance, CA 905051528492618
  44. Elena Pezzini, PHDSan Jose, CA 951261669155701
  45. Linda Pfiffner, PHDSan Francisco, CA 941431528125770
  46. Edward Pflaumer, PH.DRedlands, CA 923731801084561
  47. Aurora Pham, PH.D.Los Angeles, CA 900731679329056
  48. Shaelyn Pham, PH.D.Los Angeles, CA 900171902073711
  49. Thu Pham, PH.D.Stockton, CA 952101114131737
  50. Tuyen Pham, PHDPort Hueneme, CA 930431871746834

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.