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 83 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. Frederick Martin, PHDStockton, CA 952091184869356
  2. Heather Martin, PSYDFairfield, CA 945331588005631
  3. Jazmyne MartinSan Pedro, CA 907311417884925
  4. Jennifer Martin, PSY.DNewport Beach, CA 926601285099317
  5. Lizbeth MartinGrass Valley, CA 959451831792118
  6. Lola Martin, PSYDLos Angeles, CA 900951922649698
  7. Margaret Martin, PH.D.Riverside, CA 925071598997447
  8. Melissa Martin, LEPSan Diego, CA 921011346781515
  9. Priscilla Martin, PSYDSan Francisco, CA 941101437634177
  10. Rebecca Martin, PSYDCoalinga, CA 932101548627995
  11. Angela MartinezNiland, CA 922571649027269
  12. Catalina Martinez, PH.D.Wildomar, CA 925951124497326
  13. Daniel Martinez, MS, MA, PHDLong Beach, CA 908041376845347
  14. Debbie Martinez, PHDArcadia, CA 910061851848337
  15. Erin Martinez, PH.DMenlo Park, CA 940251417436122
  16. Francine Martinez, PH.D.San Diego, CA 921541942590815
  17. Francisco Martinez, PSY.D.Berkeley, CA 947091215362280
  18. Hector Martinez, DR.San Diego, CA 921011912431859
  19. Jennifer Martinez, PPS, LEPBakersfield, CA 933011487495636
  20. Lilibeth Martinez, PSYDVisalia, CA 932911598304008
  21. Michael Martinez, PSY.DCommerce, CA 900221225440738
  22. Monique MartinezStockton, CA 952071972234490
  23. Nichole Martinez, PSYDChino Hills, CA 917091649107830
  24. Rachel Martinez, PSYDHollister, CA 950231609555242
  25. Sandra Martinez, PSYCHOLOGISTLos Angeles, CA 900051427328962
  26. Sylvia Martinez, PH.D.Westminster, CA 926831558478057
  27. Ana Martinez De Andino, PHD, LPOrange, CA 928681215549613
  28. Maria Martinez-Farhi, PH.D.San Francisco, CA 941161295960037
  29. Joelle Martino, PSYDThousand Oaks, CA 913601689292211
  30. Frederick Martone, PH.D.Pasadena, CA 911041588751804
  31. Brian Maruyama, PH.D.Merced, CA 953401063708451
  32. Nancy Marx, PH.D.San Mateo, CA 944021700835923
  33. Robert Marzio, BASan Francisco, CA 941121518399716
  34. Pouran Mashour, PHDNewport Beach, CA 926631649496225
  35. Nina MasjediTorrance, CA 905021457185472
  36. Arezoo Masjedi Esfahani, PH.D.Los Angeles, CA 900101780016543
  37. Sara Masland, PHDClaremont, CA 917111063385904
  38. Jennifer Mason, PHDRedwood City, CA 940631598283517
  39. Steven Mason, PSY.D. PSYCHOLOGISTHermosa Beach, CA 902541811472921
  40. H. Keith Massel, PH.D.Newhall, CA 913211558616201
  41. Charles Massey, PSY.D.Livermore, CA 945511952531709
  42. Sarah MastTemecula, CA 925911366183675
  43. Marchita Masters, PSY.D.San Diego, CA 921311043330467
  44. Claudia MataLos Angeles, CA 900271457294118
  45. Suzanne Mata Matranga, PSY DLa Puente, CA 917461013035625
  46. Eyal MatalonOakland, CA 946011518484765
  47. Nicole Matei, PSY.D.Sacramento, CA 958251922596402
  48. Karla Materna, PH.D.La Jolla, CA 920371932157518
  49. Christopher Mathe, PHDGold River, CA 956701568756799
  50. Leonard Matheson, PH.D.Chico, CA 959731700988540

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.

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.