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 303 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. Pablo IsaisCerritos, CA 907031679908479
  2. Nicole Isakson, LCSWSan Luis Obispo, CA 934011265847289
  3. Claudia IsarrarasLamont, CA 932411336560739
  4. Arpi IsayanNorthridge, CA 913251881234227
  5. Rik Isensee, LCSWSan Francisco, CA 941171710102512
  6. Jonah Isenstein, LCSWBerkeley, CA 947041134939515
  7. James Isherwood, LCSWClearlake, CA 954221861801151
  8. Sorrel Isherwood, LCSW, MPHWalnut Creek, CA 945971730365263
  9. Yo Ishida, ASW, MSWSpring Valley, CA 919771225154081
  10. Traci Ishigo, MSWLos Angeles, CA 900391497385199
  11. Giovanny IsidoroLos Angeles, CA 900441063027985
  12. Fides Isidro, LCSWLos Alamitos, CA 907201427276013
  13. Andrew IskandarPasadena, CA 911071730460577
  14. Ilona Iskandar, MSWVan Nuys, CA 914051699890475
  15. Hripsime IskandaryanPasadena, CA 911071891524278
  16. Meena IslamFremont, CA 945361811782493
  17. Nadia Islam, PHD, LCSWLos Angeles, CA 900271881968436
  18. Adreena Island, LCSW, ED.DSacramento, CA 958341467799031
  19. Milton Island, ACSWLancaster, CA 935361275863144
  20. Cinthya Islas, MSWBellflower, CA 907061326450115
  21. Roxana IslasHuntington Park, CA 902551053839076
  22. Karla Islas-KostszewaGarden Grove, CA 928401346750650
  23. Cesz Almira Islaya, MSW, LCSWPalo Alto, CA 943041205960481
  24. Patricia Isom, LCSWSanta Maria, CA 934551043672488
  25. Kimberly IsraelSan Diego, CA 921271205556743
  26. Laura Israel, LCSWSanta Monica, CA 904031801998331
  27. Maya IssaSan Diego, CA 921711558113316
  28. Francie Issenman, LCSWGlendale, CA 912031023230141
  29. Audrey IsserLos Angeles, CA 900381780746875
  30. Jay IsslerSan Mateo, CA 944031427173038
  31. Carla Istupe SalgadoNorth Hills, CA 913431134621519
  32. Emily ItataniCampbell, CA 950081265351241
  33. Angie Ito, LCSWNapa, CA 945591841384500
  34. Yessica IturbideRiverside, CA 925011417503525
  35. Lilith IversenChico, CA 959261902596125
  36. Martha Iversen, LCSW BCDSan Francisco, CA 941151497967806
  37. Alexandria IveySacramento, CA 958251447809405
  38. Cierra IveyOakland, CA 946121386219459
  39. Grace Ivey, MSWSan Francisco, CA 941101265698369
  40. Bailey Iwamoto, LCSWSan Diego, CA 921201396671582
  41. Judy Iwanier, MSW, LCSWPetaluma, CA 949521053560581
  42. Naoka IwayaSacramento, CA 958411407525744
  43. Lourdes IxcameyWhittier, CA 906031528192572
  44. Elliana Ixta MaderaCompton, CA 902211922432319
  45. Nwanyieze IyalomheFountain Valley, CA 927081881094704
  46. Sherin IypeLong Beach, CA 908071568779536
  47. Cecilia IzabalNorwalk, CA 906501043644172
  48. Faranak Izadi, LCSWFair Oaks, CA 956281801178843
  49. Maggie Izmirian, LCSWLancaster, CA 935351326503905
  50. Mark Izquierdo-GallegosCovina, CA 917241659740520

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.