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 139 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. Michael Weiler, PSY.D.Los Gatos, CA 950301407021835
  2. Haim Weinberg, PH.D.Sacramento, CA 958161184956559
  3. Adam WeinerSalinas, CA 939061467573048
  4. Daniel Weiner, PH.D.Oakland, CA 946181942574892
  5. Charles Weingarten, PHDSherman Oaks, CA 914231649255696
  6. Gabrielle Weininger, PSYDSanta Barbara, CA 931011154928190
  7. Taryn Weinkam, PHDSan Carlos, CA 940701437439726
  8. Elliot Weinstein, PHDSan Diego, CA 921031801854716
  9. Jeffrey Weinstein, PH.D.Patton, CA 923691710939590
  10. Karen Weinstein, PH.D.Richmond, CA 948011952448748
  11. Rebecca WeinsteinSan Francisco, CA 941231366817942
  12. Diana Weinstock, PH.D.Martinez, CA 945531023186400
  13. Alexis Weintraub, PSY.D.Carlsbad, CA 920081164704847
  14. Christopher Weintrob, PHDLos Angeles, CA 900311649485715
  15. John Weir, PH.D.San Rafael, CA 949011306868518
  16. Maya Weir, M.A.Napa, CA 945581033778063
  17. Susanne Weir, PSY.D.Redwood Estates, CA 950441609025386
  18. Jane Weisbin, PSY.D.Berkeley, CA 947051124047915
  19. Joye Weisel-Barth, PHD/PSYDEncino, CA 913161851471544
  20. Lee Weiser, PHDSanta Barbara, CA 931081316766397
  21. Elizabeth Weisinger, PSY.D.Los Angeles, CA 900381477803872
  22. Adam Weisman, PHDLos Angeles, CA 900331386508034
  23. Dorothy Weiss, PHDLos Angeles, CA 900481093724866
  24. Emanuel Weiss, PSYDWalnut Creek, CA 945961164662573
  25. Laura WeissSan Diego, CA 921031902057789
  26. Gali Weissberger, PH.D.Alhambra, CA 918031174040125
  27. Matthew Weisskopf, PSYCHOLOGISTSan Diego, CA 921081710055785
  28. Ellen Weissman, PSY.D.Westlake Village, CA 913621811013881
  29. Lina Weissman, PHDSan Francisco, CA 941161366546558
  30. Elizabeth Weisz, PH.D.Oakland, CA 946111740933225
  31. Howard Weithorn, PSYCHOLOGISTBeverly Hills, CA 902121437233053
  32. Lexi Welanetz-Bursin, PSY.D.Los Angeles, CA 900641760582399
  33. David Welch, PH.D.Newport Beach, CA 926601467740571
  34. Katlyn WelchFremont, CA 945381598286064
  35. Leah Welch, PH.D.San Diego, CA 921281235277781
  36. Renate Welch, PH.D.Palo Alto, CA 943041679514061
  37. Sharon Weld, PH.D.La Jolla, CA 920371053459677
  38. Frances Welk, PH.D.Encinitas, CA 920241891351037
  39. Richard Welker, PHDNapa, CA 945581669829917
  40. Cody Weller, LEPBakersfield, CA 933091235804295
  41. Carl WellsHuntington Beach, CA 926471821122516
  42. Kayla Wells, PSYD, BCBAColton, CA 923241225546294
  43. Kimberly Wells, PH.D.Represa, CA 956711588901938
  44. Elizabeth Welsh, PH.D.Loma Linda, CA 923571619303161
  45. Robert Welsh, PHDPatton, CA 923691346292125
  46. Barbara Welsh Osga, PHDSan Diego, CA 921081801999065
  47. Madeleine WelteOakland, CA 946011275180952
  48. Roger Scott Wenger, PSY.D.Loma Linda, CA 923571356387781
  49. Joan Wenters, PH.D.Albany, CA 947071063502151
  50. Stephen Werk, PHDSan Jose, CA 951341306898796

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.