NPPES file of Aug 9, 2026

Clinical Social Worker in California

36,261 NPPES records list clinical social worker with a practice address in California, 93 per 100,000 residents, the 22nd 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 406 of 726.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 1041C0700X · 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, 4,806

  1. Los Angeles4,806
  2. San Diego2,036
  3. San Francisco1,358
  4. Oakland1,130
  5. Sacramento1,120

Clinical Social Worker records in California

  1. Adrienne Martinez-Villegas, CSWGardena, CA 902491285852038
  2. Esther Martino, LCSWBerkeley, CA 947101295238251
  3. Melanie Martins, LCSWLong Beach, CA 908221831497254
  4. Wesley Martins, MSWLoma Linda, CA 923571669255949
  5. John MartinsenSacramento, CA 958231790277069
  6. Lance Martinson, LCSWSan Francisco, CA 941211326061573
  7. Roxanne MartirSan Juan Capo, CA 926751063727097
  8. Maria-Jose Martirene, LCSWGoleta, CA 931111306095013
  9. Mary Martone, MSWLos Angeles, CA 900341104959295
  10. Jamie Martos, MSW, LCSWHelendale, CA 923421497241970
  11. Halina MaruhaPalmdale, CA 935501679822472
  12. Anya Maruscha, L.C.S.W.Fairfax, CA 949301598975773
  13. Daphne MarvelLos Angeles, CA 900241548831001
  14. Mary Marx, LCSWLos Angeles, CA 900311245312297
  15. Juliana Marx-Andler, LCSWOakland, CA 946051013293208
  16. Kaylee Marzoni, LCSWSan Diego, CA 921021730673831
  17. Caroline Masaniai PomeleSan Jose, CA 951191073272290
  18. Kaitlin Masatsugu, LCSWSan Jose, CA 951311790445781
  19. Christine Mascarenas, ASWChico, CA 959731275943383
  20. Evelyn MascarenasPleasanton, CA 945881336801430
  21. Andrea MasdeuRialto, CA 923761992934376
  22. Ruth MaserLos Angeles, CA 900171265566350
  23. Stephanie Maser, LCSWLos Angeles, CA 900501467167627
  24. Karen Maserjian, L.C.S.W.Riverside, CA 925031700923554
  25. Najma Mashadi, LCSWRiverside, CA 925041043347917
  26. Mikako MashimoLos Angeles, CA 900451902114127
  27. Francesca MasiLos Angeles, CA 900151518796150
  28. Colin Maslan, LCSWSan Rafael, CA 949011053101279
  29. Marsha MaslanVallejo, CA 945891093858615
  30. Kristin Maslic, LCSWSanta Clara, CA 950511477703437
  31. Elana Maslow, MSWOakland, CA 946071073473997
  32. Cheri Mason, LCSWSan Marcos, CA 920691558566141
  33. Dania MasonOrange, CA 928681477165256
  34. Emily Mason, M.S.W.Perris, CA 925701427112481
  35. Erin Mason, LCSWLos Angeles, CA 900041649407727
  36. Jill Mason, LCSWSan Leandro, CA 945781144399148
  37. Kamika MasonLong Beach, CA 908071073077277
  38. Karen Mason, LCSWLancaster, CA 935351093853590
  39. Katherine Mason, LCSWAlbany, CA 947061982110532
  40. Laura Mason, LCSWTorrance, CA 905051386770949
  41. Melvin Mason, LCSWSeaside, CA 939551548438419
  42. Rhonda Mason, LCSWSan Diego, CA 921111366436503
  43. Alyssa Mason-Martindelcampo, ACSWMission Viejo, CA 926911457112203
  44. Emon Mason-TabrizizadehWoodland Hills, CA 913671033721469
  45. Farah MasoumiLong Beach, CA 908071518035039
  46. Hala MasriLos Angeles, CA 900171801178272
  47. Jennifer Mass, LCSWTemecula, CA 925921811442940
  48. Vanessa MasselPalm Springs, CA 922621841911047
  49. Saralyn Masselink, L.C.S.W.Los Angeles, CA 900951033360607
  50. Lauren Massell, LCSWOakland, CA 946111073226551

Source: CMS NPPES, primary taxonomy 1041C0700X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 22 of 51 per resident

  1. Illinois109
  2. New Jersey105
  3. Alaska103
  4. California93
  5. Virginia93
  6. Delaware91
  7. 50 states and D.C.93

Source: CMS NPPES, primary taxonomy 1041C0700X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

6.0% of these records appear in a Medicare file, against 11.7% 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. California6.0%
  2. United States11.7%

Clinical Social Worker records in California, measured

  • In a Medicare file2,182 of 36,261 · 6.0% here, 11.7% nationally
  • In the CMS Doctors and Clinicians file4,012 · 11.1% here, 19.1% nationally
  • Not updated in five years or more16,389 · 45.2% here, 52.9% nationally
  • Median graduation year2012 · the 4,008 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 1041C0700X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

36,261 NPPES records list clinical social worker (1041C0700X) as their primary taxonomy with a practice address in California: 93 per 100,000 residents against 93 nationally (50 states and D.C.). Los Angeles has 4,806 of them (13%).

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 York29,293
  2. Massachusetts17,815
  3. Michigan17,644
  4. North Carolina15,561

States with a similar rate per 100,000

  1. Virginia92.9
  2. Delaware90.6
  3. Kentucky89.9
  4. Idaho89.1

The largest states

  1. New York29,293
  2. Massachusetts17,815
  3. Michigan17,644
  4. North Carolina15,561
  5. Illinois13,637

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.