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 166 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. Barbara Noyes, PH.D.Laguna Niguel, CA 926771811194186
  2. Audrey Nulman, PHDOakland, CA 946181861510810
  3. Alicia Nunez, PHD, MPHSanta Barbara, CA 931101932710282
  4. Claudia Nunez, PSYDSanta Monica, CA 904011194919423
  5. Daniel Nunez, PSY.D.Santa Ana, CA 927011871960815
  6. Esmeralda NunezCommerce, CA 900221194392084
  7. Francisco Nunez, PHDLos Angeles, CA 900121316046295
  8. Nayely Nunez, PSY.D.Stockton, CA 952151073185237
  9. S Christopher Nunez, PHDLos Angeles, CA 900241992022842
  10. Sal Nunez, PHDSan Francisco, CA 941311033245352
  11. Robert Nunn, PH.D., BCBA-DSan Diego, CA 921281386925204
  12. Sarah Nunnink, PHD - CLINICAL PSYCHSan Diego, CA 921611326229410
  13. Gayane NurijanyanIrvine, CA 926181447609276
  14. Cory Nyamora, PSYD.Pinole, CA 945641710044375
  15. Tara Nyasio, PSYDLong Beach, CA 908221740321199
  16. Amade Nyirak, PSY.D.Santa Clarita, CA 913501225154586
  17. Hannah Nystrom, PH.D.San Francisco, CA 941021821285461
  18. Andrew Nyx, PH.D.San Diego, CA 921011700320504
  19. Megan O'Banion, PSY.D.Lemon Grove, CA 919451154464303
  20. Joel O'Beso, PSY.D.San Mateo, CA 944031154566438
  21. Bobbi O'BrienTorrance, CA 905051962685255
  22. Kaitlin O'Brien, PH.D.Costa Mesa, CA 926261194468439
  23. Patricia O'Brien, PH.DLos Angeles, CA 900341720103419
  24. Susan O'Brien, PH DSacramento, CA 958161063688240
  25. Suzanne O'Brien, PH.D.Oceanside, CA 920541164462883
  26. Caitlin O'Brien-Masonis, PSY.DAtascadero, CA 934221508679846
  27. Kelly O'Bryan, PH.D.Escondido, CA 920261093882698
  28. Robynne O'Byrne, PH.D.San Rafael, CA 949011508122128
  29. Michael O'Callaghan, PHDSan Diego, CA 921231609951292
  30. Leslie O'Connell, PH.D.San Rafael, CA 949011558453589
  31. Arlene O'Connor, PSY.D.Mission Viejo, CA 926911174659627
  32. Mary O'Connor, PHDLos Angeles, CA 900951245265792
  33. Sean O'Connor, PSYCHOLOGISTSanta Barbara, CA 931051881232999
  34. Shannon O'Connor, PSYDAgoura Hills, CA 913011235531294
  35. Anne O'Crowley, PH.D.San Francisco, CA 941151497948830
  36. Gerald O'Day, PH.D.Arcadia, CA 910061487737235
  37. Linda O'Dell, PH.D.Santa Monica, CA 904011477989846
  38. Shawnessy O'Dell, PSY.D.Saratoga, CA 950701174765697
  39. Shannon O'Flinn, PH.D.Pasadena, CA 911071336344811
  40. David O'Grady, PH.D.Walnut Creek, CA 945961437375565
  41. Susan O'Grady, PH.D.Walnut Creek, CA 945961437375573
  42. Patrick O'Hearn, PH.D.Oakland, CA 946071245307529
  43. Bernadette O'Leary, PSYDLos Angeles, CA 900451124147863
  44. Jessica O'Leary, PHDLos Angeles, CA 900251467979658
  45. Laura O'Loughlin, PSYDSanta Monica, CA 904031669068623
  46. Helene O'Mahony, PH.DDana Point, CA 926291275766941
  47. Charles O'Malley, PH.D.Long Beach, CA 908071831120690
  48. E. O'Meara, PH.D.San Diego, CA 921311124185947
  49. Kelly O'NeillSan Diego, CA 921981316345382
  50. Patricia O'Neill, PHDLos Angeles, CA 900481700079613

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.