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 104 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. Sheila CastilloLos Angeles, CA 900471871033415
  2. Stephanie CastilloSan Diego, CA 921211952072449
  3. Sylvia Castillo, LCSWWalnut Creek, CA 945961790834844
  4. Tiffany CastilloOakland, CA 946061841915519
  5. Tilza CastilloGranada Hills, CA 913441629966841
  6. Trinidad Castillo, LCSWRiverside, CA 925031508472911
  7. Vanessa Castillo, LCSWLos Angeles, CA 900891518415876
  8. Vanessa Castillo, LCSWConcord, CA 945191720376700
  9. Marie Castillo LealLos Angeles, CA 900171457767287
  10. Leslie Castillo-RivasWatsonville, CA 950761548947716
  11. Stephany Castillo-VasquezLake Isabella, CA 932401851901862
  12. Alejo Castillon, LCSWStockton, CA 952101386704286
  13. Konstance Castle, LCSWPasadena, CA 911071841848272
  14. Linda Castle, MSWLos Angeles, CA 900641124265095
  15. Joanie Castle-Haigh, MSWTarzana, CA 913561952077356
  16. Dani CastleberrySan Diego, CA 921541053706853
  17. Ellen CastlemanWalnut Creek, CA 945961588791081
  18. Chris Caston, LCSWFontana, CA 923351851793368
  19. Denise Castor Razo, LCSWNorwalk, CA 906501598501934
  20. Giselle Castor-RazoLong Beach, CA 908131821766866
  21. Laura CastracaneSan Bernardino, CA 924151669871778
  22. Joy Castrejon, LCSWVacaville, CA 956881114121308
  23. Nicole Castrejon, LCSWOakland, CA 946021285188797
  24. Gabriela Castrejon NavaLos Angeles, CA 900471780122770
  25. Alejandro CastroNorthridge, CA 913251487133500
  26. Alicia Castro, LCSWTulare, CA 932741023132180
  27. Anllely CastroLos Angeles, CA 900311780103630
  28. Antonio Castro, MSWColton, CA 923241447542345
  29. Arlene CastroRiverside, CA 925011417331695
  30. Ashley CastroWildomar, CA 925951689318768
  31. Christina Castro, LCSWColton, CA 923241548401219
  32. Claudia CastroSanta Clarita, CA 913501568386514
  33. Daniel Castro, LCSWPasadena, CA 911011679882856
  34. Doris CastroCompton, CA 902201417146218
  35. Elizabeth CastroPomona, CA 917671649746603
  36. Eva Castro, MSWMoorpark, CA 930211306520119
  37. Gerardo CastroPorterville, CA 932571386834778
  38. Gerardo CastroStockton, CA 952021780123737
  39. Hazel Castro, LCSW 71627Chowchilla, CA 936101598199150
  40. Jacqueline CastroReseda, CA 913351295866432
  41. Kelli Castro, LCSWValley Glen, CA 916061154624435
  42. Liana Castro, LCSWTorrance, CA 905021255747341
  43. Linda Castro, LCSWGlendora, CA 917411588816649
  44. Lourdes CastroPerris, CA 925711225387061
  45. Mayerling CastroFountain Valley, CA 927081295103794
  46. Mayra Castro, LCSWBakersfield, CA 933071851762496
  47. Melissa CastroSalinas, CA 939061427524248
  48. Paul CastroSonora, CA 953701962048181
  49. Rachel CastroHarbor City, CA 907101376030809
  50. Rudolfo Castro, LCSWLos Angeles, CA 900101124336953

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.