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 122 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. Cary Sinnott, PSYDLos Angeles, CA 900491972733855
  2. Maureen Sinnott, PH.D.Redwood City, CA 940621740519412
  3. Michael Sipiora, PH.D.Santa Barbara, CA 931011417961087
  4. Danielle Sires, PSY.D.San Francisco, CA 941031942546866
  5. Brian Sirois, PH.D.San Jose, CA 951191730248121
  6. Karen Siscoe, PH.D.Los Angeles, CA 900121003069444
  7. Marisa Sisk, PSY.D.Beverly Hills, CA 902101538453576
  8. Paula Sitelman, PSY.D.San Francisco, CA 941181326247842
  9. David Sitzer, PH.D.Palo Alto, CA 943011619091253
  10. Jordyn SkaggsSan Diego, CA 921091205485018
  11. Erin Skiffer, PSY.D.Corte Madera, CA 949251295083368
  12. Matthew Skinta, PH.D.San Francisco, CA 941141922287101
  13. Berta Sklansky, MSW LCSWCulver City, CA 902301093848871
  14. Susan Skolek, PSYDGuerneville, CA 954461114923745
  15. Pamela Skorstad, PSY.D.San Clemente, CA 926731568604288
  16. Jane Skoyen, PHDSan Francisco, CA 941051376061382
  17. Andris Skuja, PHDOakland, CA 946111104901651
  18. Austin Slade, PSY.D.San Diego, CA 921171447685177
  19. Douglas Slakey, PHDRedwood City, CA 940631033595681
  20. Gabrielle Slater, MASanta Monica, CA 904041942937602
  21. Alexandra SlickFullerton, CA 928311306417001
  22. Lisa Sloan, PH.D.Topanga, CA 902901851822837
  23. Phillip Sloan, PSY DDelano, CA 932161225306616
  24. Michael SloneLos Gatos, CA 950321063894079
  25. John (jay) Slosar, PH.D.Irvine, CA 926061538225123
  26. Trevor Small, PSY.D.Beverly Hills, CA 902101336236181
  27. Patricia Smiley, PHDClaremont, CA 917111861255770
  28. Aaron Smith, PH.D.Sacramento, CA 958251245641331
  29. Amy Smith, PSY.DNewbury Park, CA 913201073309753
  30. Andrew SmithStockton, CA 952191225144967
  31. Anna SmithEncino, CA 913161386511491
  32. April Smith, M.S.San Diego, CA 921031376837039
  33. Danielle SmithSanta Cruz, CA 950641649804196
  34. Elisa SmithPasadena, CA 911011760157689
  35. Emily Smith, PHDLos Angeles, CA 900191598401739
  36. Gwynneth Smith, M.S., J.D.Palo Alto, CA 943041982899845
  37. Jason SmithSacramento, CA 958221235989872
  38. Jennifer SmithPasadena, CA 911011073399077
  39. Jennifer Smith, PSY.D.Fresno, CA 937111487972238
  40. Joyce SmithWinterhaven, CA 922831154361822
  41. Kelly SmithRedding, CA 960011700192481
  42. Kelsey SmithAnaheim, CA 928011790336857
  43. Kimberly Smith, LEPAliso Viejo, CA 926561912751702
  44. Klayton Smith, PSY.D.Chowchilla, CA 936101609184340
  45. Kristen Smith, PH DWatsonville, CA 950761861747446
  46. Lezlie SmithMurrieta, CA 925621184800070
  47. Ma'Sha Smith, PSYD, PPSCovina, CA 917241033999198
  48. Mardi Smith, PH.D.San Diego, CA 921161154601862
  49. Marleen Smith, PH.D.San Francisco, CA 941181245611946
  50. Matthew Smith, PSY.D.Fremont, CA 945381295896082

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.