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 137 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. Julie Lustig, PH.D.Menlo Park, CA 940251740838697
  2. Leigh Lustig, PSYDNorth Hollywood, CA 916021326592205
  3. Julie Lutz, PHDStanford, CA 943051093492266
  4. Robert Lutz, PH.D.San Francisco, CA 941221962519884
  5. Susana Lutz, PSYDLos Angeles, CA 900201699373480
  6. Tran Luu Yang, BCBASanta Ana, CA 927051982946588
  7. Sandy Lwi, PH.D.Martinez, CA 945531689200016
  8. Lily Ly, PSY.D.San Leandro, CA 945781679798557
  9. Peter Ly, PSY.D.Milpitas, CA 950351356403448
  10. Ryan Ly, PSY.D.Norwalk, CA 906501326671652
  11. Lynlee Lyckberg, REG PSYCH ASSOCIATEPleasant Hill, CA 945231790220671
  12. Tyler Lyckberg, PHDLos Angeles, CA 900731376024398
  13. Jennifer Lydon-Lam, PH.D.Livermore, CA 945511780914036
  14. Julianna Lyell, PSY.D.Long Beach, CA 908041255378006
  15. Wendy Lyle, PH.D.Yuba City, CA 959911992856363
  16. Jennifer Lyman, PH.D.Newport Beach, CA 926601629320387
  17. Laura Lyman, PSY.D.Torrance, CA 905051649377110
  18. Ashley Lynch, PSY.D.Los Angeles, CA 900251528224516
  19. Barton Lynch, PSY.D.Walnut Creek, CA 945971518077478
  20. Erin Lynch, PSY.D.La Canada, CA 910111790011526
  21. Matthew Lynch, PSY.D.Huntington Beach, CA 926471306932223
  22. Timothy LynchCamp Pendleton, CA 920551174792097
  23. Leigh LyndonSan Francisco, CA 941051982834115
  24. Brian Lynn, PH.D.Orange, CA 928681972046423
  25. Lynelle Lynn, PSY.D.Felton, CA 950181215288329
  26. Ariadne Lyon, PHDSan Francisco, CA 941151972327591
  27. Casandra Lyon, PSY.D.Nevada City, CA 959591316348857
  28. Alixandra Lyon-BramhallSan Francisco, CA 941211265700801
  29. Carolyn Lyons, PH.D.Pasadena, CA 911011306114996
  30. Cecile Lyons, PHDSanta Barbara, CA 931011770804858
  31. Gina Lyons, PH.D.Agoura Hills, CA 913761396543484
  32. Katherine Lyons, PSYDFresno, CA 937261205998036
  33. Michelle Lyons, PHDSan Diego, CA 921081619451705
  34. Robert Lyons, PH.D.San Diego, CA 921081699545632
  35. Roger Lyons, PSY.D.Hanford, CA 932301245508084
  36. Timothy Lyons, PSYDCameron Park, CA 956821235683954
  37. Andrei Lyovin, PH.D.San Jose, CA 951231194917682
  38. Mark Lytle, PSY.D.San Diego, CA 921311801956198
  39. Keziah Lyu, PSYDMountain View, CA 940431235671793
  40. Xin LyuSan Jose, CA 951281407338601
  41. Marguery Lyvers, PH.D.Pasadena, CA 911061790092609
  42. Flora Ma, PHDStanford, CA 943051346765468
  43. Helen Hei Man Ma, PHDLoma Linda, CA 923571245757848
  44. Natalie MaSan Rafael, CA 949011477710754
  45. Rita Ma, PHDLancaster, CA 935361245249390
  46. Nikita Mac, PSY.DSanta Clarita, CA 913511558963728
  47. Roni Maccabee, PHDLos Angeles, CA 900101093931115
  48. Melissa MaccariniTorrance, CA 905021700496304
  49. Daniel Maccia, PSY.D.San Diego, CA 921011740355841
  50. Erynn Macciomei, PHDSan Diego, CA 921111548869175

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.