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 126 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. Pamela Stevenson, PH.D.Fremont, CA 945381760548580
  2. Ryan Stevenson, PHD, MSWSan Marcos, CA 920781083021232
  3. Amber StewartPalo Alto, CA 943061164054193
  4. Daniel StewartSanta Monica, CA 904041518542083
  5. David Stewart, PH.D.Cameron Park, CA 956821699881201
  6. Devin Stewart, PPS, SCHOOL PSYCHHuntington Beach, CA 926461780542340
  7. Dylan StewartOakland, CA 946011215482484
  8. Edith Stewart, PH.D.Santa Monica, CA 904031720370398
  9. Jennifer StewartLarkspur, CA 949391407404049
  10. Judith Stewart, PHDRedondo Beach, CA 902771477883460
  11. Lindsey StewartPalo Alto, CA 943041699668228
  12. Michael Stewart, PH.D.Calipatria, CA 922331063634392
  13. Stephen Stickler, ED.S, PPS, LEPGarden Grove, CA 928411528332665
  14. Richard Stiens, PH DLemoore, CA 932461144386814
  15. Ona Stiles, PH.D.Sacramento, CA 958251487928297
  16. Lisa Stiller, PH.D.Santa Monica, CA 904041134499247
  17. Sierra StillwaterBakersfield, CA 933081134719784
  18. Matthew Stimmel, PHDMenlo Park, CA 940251700139201
  19. Katy StimpsonPalo Alto, CA 943041679167332
  20. Lisa Stockdale, PH.D.Newport Beach, CA 926601801933437
  21. Adam Stoker, PHDSanta Monica, CA 904041588064158
  22. Tami Stokes, PH.D.Laguna Niguel, CA 926771740895325
  23. Ashley Stokke, PSYDSan Jose, CA 951191548655194
  24. Shelly Stolesen, PH.D.Mill Valley, CA 949411760784284
  25. Grant Stoll, PSY.DAtascadero, CA 934221720308075
  26. Carolyn Stoltzfus, PH.D.Oakland, CA 946111689721094
  27. Donald Stoltzfus, PH. D.Glendale, CA 912081528157658
  28. Gary Stolzoff, PHDSan Rafael, CA 949011477578516
  29. Marsha Stolzoff, PHDMission Viejo, CA 926911477658979
  30. Charlotte Stone, PSY.D.Santa Monica, CA 904031801175609
  31. Brandi Stoops, PH.D.Newbury Park, CA 913201134664162
  32. Lisel Storck, M.AWoodland Hills, CA 913641356616999
  33. Erik Storholm, PH.D.West Hollywood, CA 900461528519931
  34. Randy Stotland, PHDSan Diego, CA 921221457688327
  35. Frances Stott, PHDSan Francisco, CA 941051033399712
  36. Shannon Stovall, LPC, PSYDFremont, CA 945381861705188
  37. Darin Stowell, PSY.D.Pleasanton, CA 945661437320280
  38. Donald Strangio, ED.D.Modesto, CA 953541245394667
  39. Alisa Stratton, PH.D.Santa Rosa, CA 954011396019741
  40. Laura Straus, PHDSan Francisco, CA 941211427686831
  41. Katherine Straznickas, PH.D.San Francisco, CA 941171386856938
  42. Emily Streeter, PSY.D.Hemet, CA 925441538496948
  43. Susan Streeter, PH.D.Fresno, CA 937201528105608
  44. Laura StricklandTracy, CA 953041538354543
  45. Savanah StricklandSanta Ana, CA 927011184357857
  46. Katie Stritzel, LEPLong Beach, CA 908081730986373
  47. Carolyn Stroebe, LICENSEDPSYCHOLOGISTSan Rafael, CA 949031457564494
  48. Wibecke StromsnesOakland, CA 946091376019984
  49. Kristen Strong, PHDIsla Vista, CA 931171023459435
  50. Robert StrongLos Angeles, CA 900411649397688

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.