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 212 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. Margie Slater, PSY.D.Encino, CA 913161891119525
  2. Sandra Slater, PSYDChula Vista, CA 919151386873776
  3. Sanford Slater, PH.D.Seal Beach, CA 907401710253760
  4. Ashley Slaughter, PSYDUnion City, CA 945871700456035
  5. Margaret Slaven, PSY.D.Fullerton, CA 928351477628923
  6. Julie Slay, PH.D.Palo Alto, CA 943041740596253
  7. Jana Slezakova, M.A.Atascadero, CA 934221376973875
  8. David Slier, PH.D.La Mesa, CA 919421528034725
  9. Joseph Slimowicz, PSY.D.San Diego, CA 921091629515002
  10. Michael Sloan, PHDBanning, CA 922201205902954
  11. Brinell Slocumb, PSY.D.Pasadena, CA 911011770700635
  12. Suzanne Sloman, PHDCastro Valley, CA 945461942363122
  13. Lee Slome, PHDOakland, CA 946181891152492
  14. Barry Slone, PH.D.Aliso Viejo, CA 926561831187285
  15. Lisa Slover, PSYDPaso Robles, CA 934461366949943
  16. Gary Slutzky, PH.D.Roseville, CA 956611700932688
  17. Marguerite SmallPetaluma, CA 949521740300326
  18. Nancy Small, PH.D.San Jose, CA 951251215138813
  19. Lacy SmalleyWalnut Creek, CA 945981295049328
  20. Alicia Smart, PSYDSan Anselmo, CA 949601548386436
  21. Hoda Smidi, PPleasant Hill, CA 945231144963323
  22. Aaron Smith, PSY.D.Corona, CA 928831063535672
  23. Alexis SmithAtascadero, CA 934221174013080
  24. Alexis Smith, PSY.D.Walnut Creek, CA 945961063741601
  25. Amanda Smith, PSY.D.Encino, CA 914361699844639
  26. Amy Smith, PSYDAtascadero, CA 934221063947448
  27. Andrew Smith, PH.D.Vacaville, CA 956961720369598
  28. Barbara Smith, PHDSanta Ana, CA 927011255429072
  29. Carlene Smith, PH.D.San Marcos, CA 920781295990539
  30. Catherine Smith, PSYDSanta Monica, CA 904051417487125
  31. Catherine Smith, PH.D.South Pasadena, CA 910301699799437
  32. Chelsea Smith, PSYDValencia, CA 913551487087045
  33. Conor Smith, PSYDSan Francisco, CA 941101437852183
  34. Daniel Smith, PHDClaremont, CA 917651437227824
  35. Darren Smith, PSYDAtascadero, CA 934221043532690
  36. David Smith, PHDPomona, CA 917691104846427
  37. David Smith, PH.D.Corona, CA 928831508071036
  38. Dawn Smith, PH.D.San Francisco, CA 941151013068659
  39. Deborah Smith, PSYDAgoura Hills, CA 913011306153283
  40. Douglas Smith, PH.D.Santa Rosa, CA 954091376528703
  41. Elizabeth Smith, PSYDSan Diego, CA 921171497260020
  42. Georgina Smith, PH.D.Santa Monica, CA 904031396073417
  43. Janet Smith, PH.D.Los Angeles, CA 900251699813337
  44. Judy Smith, PH.D.Los Altos, CA 940241770017063
  45. Kaila SmithSan Diego, CA 921031598144073
  46. Kara SmithSan Diego, CA 921081568332385
  47. Katherine Smith, PH DBakersfield, CA 933091033229141
  48. Kathryn Smith, PH.D.Los Angeles, CA 900891245740364
  49. Kimberly Smith, PSYDFairfield, CA 945331639119563
  50. Krystal Smith, PSYDAnaheim, CA 928061437689338

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.