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 325 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. Susan Karpenko, LCSWSan Francisco, CA 941221902902000
  2. Mikaela Karpinski, LCSWSan Bernardino, CA 924041992560072
  3. Abigail Karrh, LCSWStudio City, CA 916041407749427
  4. Katie Karsh, LCSWLos Angeles, CA 900641386485993
  5. Naomi Kartin, LCSWSan Diego, CA 921031952194805
  6. Nicole Kartus, LCSWLos Angeles, CA 900261043878853
  7. Flora KaryanGlendale, CA 912021235985680
  8. Laura Karzen, LCSWDel Mar, CA 920141376835058
  9. Lucy Kasdin, MSWOakland, CA 946121720308976
  10. Grady Kase, L.C.S.W.Palo Alto, CA 943031013074400
  11. Elizabeth Kashpureff, ASWFresno, CA 937101538018338
  12. Georgina KasihFontana, CA 923351467920108
  13. Edmund Kasner, LCSW, MSW, MAMRiverside, CA 925071144346818
  14. Keisha KasoziLos Angeles, CA 900171740612910
  15. Randy KasperPasadena, CA 911011255504577
  16. Janet Kass, LCSWMill Valley, CA 949411013018647
  17. Stephen Kass, LCSWVentura, CA 930011003551631
  18. Dunia Kassay, LICSWMountain View, CA 940411104408293
  19. Zsuzsa Kasselmann, ASWCarlsbad, CA 920081083065239
  20. Kathryn Kassem, MFTBellflower, CA 907061700083029
  21. Coleman KassenbrockSan Diego, CA 921021508687344
  22. Katherine Kasserman, LCSWLos Angeles, CA 900281912619313
  23. Mary Ann Kassier, LCSWWalnut Creek, CA 945961285850990
  24. Alyson Kassorla, L.C.S.WBellflower, CA 907061356543680
  25. Rachel KastSanta Cruz, CA 950601881376366
  26. Kara Kasteen, LCSWScotts Valley, CA 950661346473295
  27. Robin Kastner-Treisman, LCSWEl Cajon, CA 920211376749531
  28. Maria Kastoras, LCSWCampbell, CA 950081205971363
  29. Jessica KastrupSanta Rosa, CA 954071629407929
  30. Melinda KataharaCarlsbad, CA 920081497821060
  31. Indira Katan, LCSWSanta Barbara, CA 931101659845600
  32. Mallory KatavichSan Jose, CA 951191144689886
  33. Joshua KatellChatsworth, CA 913111346733581
  34. Elaine KatesSanta Cruz, CA 950621497969596
  35. Eva Kathok, LCSWSanta Monica, CA 904041780248542
  36. Diana Kathol, LCSWVista, CA 920811750519435
  37. Anjana Kathuria, LCSWIrvine, CA 926031710659438
  38. William Katkov, LCSWSan Diego, CA 921101851596332
  39. Nasha Katrack, LCSWValencia, CA 913551164096061
  40. Marina KatrjianSimi Valley, CA 930631730993825
  41. Roman KatsnelsonChatsworth, CA 913111467157610
  42. Evan Katten, LCSWPasadena, CA 911011952425472
  43. Sebastian Katten, LCSWLos Angeles, CA 900421073981320
  44. Colette Katuala, LCSWSan Leandro, CA 945771093131898
  45. Anne Katz, PH.D., LCSWLos Angeles, CA 900331467505628
  46. Bernive Anne Katz, MSWLos Angeles, CA 900251265542021
  47. Daniel Katz, LCSWChico, CA 959261144419482
  48. Dyani Katz, LCSWSan Ramon, CA 945831770885972
  49. Harriet Katz, LCSWSanta Rosa, CA 954091326193343
  50. Kenneth Katz, LCSW, CTSFresno, CA 937101659594141

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.