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 189 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. Daniel Richardson, PSY.DCulver City, CA 902321154515351
  2. Jenae Richardson, PSYDStanford, CA 943051548876337
  3. Kelsy Richardson, M.A.San Diego, CA 921081518330620
  4. Kimberley RichardsonLos Angeles, CA 900611780885327
  5. Lauren Richardson, PHDNewport Beach, CA 926601679853378
  6. Linda Richardson, PH.D.Downey, CA 902421346311792
  7. Rachel Richardson, PSYDChowchilla, CA 936101104197177
  8. Saudia Richardson, PSYDSan Diego, CA 921711700441847
  9. Tara Richardson, PH.D.Orange, CA 928671134346968
  10. Lauren RichersonNorthridge, CA 913251811027287
  11. Peter Richman, PH.D.Martinez, CA 945531164570529
  12. Raymond Richmond, PHDSan Francisco, CA 941051932729498
  13. Stephanie Richter, PH.D.Martinez, CA 945531073765343
  14. David Richwerger, ED.D.Sacramento, CA 958191790847606
  15. Emily Ricketts, PHDLos Angeles, CA 900951043872872
  16. Victor Rico, PH.D.Los Angeles, CA 900951841526969
  17. Robert RiddellSan Francisco, CA 941181053864645
  18. Nicole Riddle, PSY.D.Santa Monica, CA 904031679774509
  19. Richard Riddle, PH.D.Susanville, CA 961301164635249
  20. Tiffany Rideaux, PSY.D.Palo Alto, CA 943041831539691
  21. Nicole Ridout, PSY.D.San Francisco, CA 941071063654226
  22. Kristen Riedle, PHDEl Monte, CA 917321114592136
  23. Johanna Riegg-Luedge, PH.D.Santa Cruz, CA 950601457423329
  24. William Riess, PH.D.Berkeley, CA 947041700969235
  25. Jeffrey Riffle, PSY.D.San Diego, CA 921061134197148
  26. Jamie Rifkin, PH.D.Berkeley, CA 947201932345667
  27. Lori Rifkin, PHDSan Rafael, CA 949011518012541
  28. Lisa RiggsNewport Beach, CA 926601689893232
  29. Kobita Rikhye, PSYDNapa, CA 945581043548159
  30. Dana Riley, PSY.D.Fresno, CA 937261457477473
  31. Kate Riley, PHDSan Bruno, CA 940661508926783
  32. Sean Riley, PSY.D.San Francisco, CA 941141528155587
  33. Meredith Rimmer, PH.D.Encino, CA 913161518285410
  34. Susan Rindt, PSYDDel Mar, CA 920141437107141
  35. Arlen Ring, PH.D.Woodland Hills, CA 913641336285063
  36. Jeffrey Ring, PH.D.Los Angeles, CA 900331245451616
  37. Mavis Ring, PSYDSan Francisco, CA 941021194026096
  38. Susan Ring, PH.D.Claremont, CA 917111285791525
  39. Ladonna RingeringLos Angeles, CA 900251235278359
  40. Kimberly Ringwood, PH.D.Oakland, CA 946091871826974
  41. Jo Ann Riniti, PHDAptos, CA 950031275723850
  42. Jenna Rinsky, PH.D.Palo Alto, CA 943011336302298
  43. Julia Rios, PHDStanford, CA 943051497369227
  44. Melissa Rios, PSYDGranada Hills, CA 913441093290926
  45. Kimberly Rios-Lam, PSY.D.Fontana, CA 923361215341961
  46. Rachel Riphagen, PSY.D.San Bernardino, CA 924011740319565
  47. Melissa Ripp, PSY.D.Encino, CA 914361063164879
  48. Sharon Rippner, PH.D.San Luis Obispo, CA 934011386978047
  49. Rebecca (nastassia) Riser, M.S., PH.D.Encinitas, CA 920241831486778
  50. Dean Rishel, PH.D.Irvine, CA 926141437277340

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.