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 399 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. Adrian Marroquin, LCSWLos Angeles, CA 900641871214643
  2. Adriana Marroquin, LCSWLos Angeles, CA 900171154655827
  3. Amalia MarroquinAntioch, CA 945091760703300
  4. Belveth Marroquin, LCSW # 110655Los Angeles, CA 900951619256252
  5. Jessica MarroquinLos Angeles, CA 900311063896983
  6. Joanna Marroquin, LCSWSanta Clara, CA 950541174820740
  7. Maria MarroquinLos Angeles, CA 900171356983555
  8. Mary Marroquin, LCSWLos Angeles, CA 900441477804128
  9. Melissa Marroquin, LCSWPalmdale, CA 935501578767877
  10. Nicole MarroquinLos Angeles, CA 900171265682348
  11. Sandra Marroquin, LCSWGardena, CA 902481942618020
  12. Sandy Marroquin, LCSW, PPSCLos Angeles, CA 900171407257736
  13. Silvia Marroquin, LCSWVisalia, CA 932781538036728
  14. Melissa Marrs, LCSWHomeland, CA 925481285828285
  15. Kayla MarrufoLos Angeles, CA 900031124825195
  16. Carolyn Marsee, LCSWLos Angeles, CA 900561386848711
  17. Alison MarsellaSan Diego, CA 921091841797388
  18. Lynne Marsenich, LCSWRiverside, CA 925031912127796
  19. Elizabeth Marsh, LCSWLancaster, CA 935351922197912
  20. Emily Marsh, LCSWSan Leandro, CA 945781316010721
  21. Jennifer Marsh, LCSWSan Ramon, CA 945831861627747
  22. Kimberlee MarshLos Angeles, CA 900351700368396
  23. Laura Marsh, MSWVista, CA 920831770885543
  24. Megan MarshYuba City, CA 959911831396514
  25. Noah MarshSan Leandro, CA 945781861065138
  26. Sara MarshWoodland Hills, CA 913671114732419
  27. Sara Marsh, MSW, ED.D.Pleasant Hill, CA 945231952633117
  28. Alesha MarshallSan Bernardino, CA 924081447585716
  29. Angelina MarshallSylmar, CA 913421235420761
  30. Brianna Marshall, LCSWFresno, CA 937221770140626
  31. Daniel Marshall, LCSWSan Diego, CA 921081740769397
  32. Deni Marshall, LCSWElk Grove, CA 957581932125002
  33. Gisela MarshallLancaster, CA 935341497546147
  34. Heather MarshallJoshua Tree, CA 922521902079403
  35. Hillary Marshall, LCSWBakersfield, CA 933011982737474
  36. Jennifer Marshall, ACSWMadera, CA 936381578316832
  37. Jill Marshall, LCSWShasta Lake, CA 960191033385562
  38. Joshua Marshall, LCSWBig Bear Lake, CA 923151588222400
  39. Karen Marshall, LCSWSan Diego, CA 921201205878212
  40. Keith MarshallSan Diego, CA 921101972471233
  41. Latonya MarshallCommerce, CA 900401851634125
  42. Lindasue Marshall, LCSWSalinas, CA 939011346257136
  43. Margaret Marshall, LCSWSacramento, CA 958251083257026
  44. Sarah MarshallPalo Alto, CA 943031104993567
  45. Shannon Marshall, LCSW-86019Oxnard, CA 930361902283864
  46. Toni Marshall, LCSWBerkeley, CA 947051043336753
  47. Tracy Marshall, LCSWEureka, CA 955031114463965
  48. Veronica Marshall, LCSWRialto, CA 923761801216833
  49. Dena Marshall Sorbo, LCSWLos Altos, CA 940221417713892
  50. Amanda Marshall-KappSan Francisco, CA 941101366314940

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.