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 608 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. Julie Simpson, LCSW, PPSCArcata, CA 955211689262776
  2. Michael Simpson, ACSWSan Diego, CA 921081821910746
  3. Michelle Simpson, MSWManteca, CA 953371780214478
  4. Natalie Simpson, ASWSanta Cruz, CA 950601245939883
  5. Shelly SimpsonPleasant Hill, CA 945231972151272
  6. Tanya Simpson, LCSWSacramento, CA 958111871238386
  7. Tawney SimpsonGreenville, CA 959471144502303
  8. Sharlene Simpson Foox, LCSWLafayette, CA 945491861077190
  9. Brenda Simpson Hamamoto, M.S.W, L.C.S.W.San Bernardino, CA 924011194846956
  10. Amelia Sims, LCSWCovina, CA 917241811321862
  11. Danielle Sims, LCSWChula Vista, CA 919111548601685
  12. Jasmine Sims, LCSWOntario, CA 917641972978724
  13. Jason Sims, BA, MSW, ACSWPlacerville, CA 956671821545369
  14. Julianne Sims, LCSWMerced, CA 953411871960526
  15. Sarah Sims, LCSWChico, CA 959261710658018
  16. Sheryl Sims, LCSWSanta Monica, CA 904041245364025
  17. Teresa Sims, LCSWSan Jose, CA 951121699082784
  18. Kin Sin-RongLos Angeles, CA 900331619497518
  19. Kadiatou SinayokoLos Angeles, CA 900471669238531
  20. Alexandria Sinclair, LCSWSan Diego, CA 921161871129965
  21. Anitalyn Sinclair, LCSWEscondido, CA 920261811631559
  22. Shawn Sinclair, LCSWTustin, CA 927821174167373
  23. Yolanda Sinclair, MSW, PPSC, LCSWLos Angeles, CA 900171851949085
  24. Carol Singer, LCSWBerkeley, CA 947041679764922
  25. Gayle SingerBeverly Hills, CA 902111841334497
  26. Kennedy SingerMonterey Park, CA 917551770180069
  27. Marisa Singer, LCSWOakland, CA 946101508237504
  28. Michael Singer, L.C.S.W.Sacramento, CA 958141063501088
  29. Natasha Singer, LCSWStudio City, CA 916041790842565
  30. Rosa Singer, MSW, LCSWSimi Valley, CA 930631366745861
  31. Shelby SingerNevada City, CA 959591639306475
  32. Theodora Singer, LCSWRedwood City, CA 940621265716757
  33. Aman Singh, LCSW 74270Elk Grove, CA 957581568895951
  34. Amarjeet Singh, LCSWVallejo, CA 945891043372816
  35. Aneesha SinghStockton, CA 952071649935743
  36. Manpreet Singh, LCSWOakland, CA 946121811544950
  37. Promla SinghLos Angeles, CA 900391477673051
  38. Sonal Singh, LCSWRiverbank, CA 953671053280073
  39. Stacie Singh, LCSWColton, CA 923241124266085
  40. Stephanie SinghLos Angeles, CA 900071659996007
  41. Vanessa SinghModesto, CA 953541255885869
  42. Victor Singh, LCSWStockton, CA 952021386766731
  43. Sirirat Singhakul, LCSWPanorama City, CA 914021881275295
  44. Susie (sujata) Singhal, ASW, MSW, M.ED, MPHLa Crescenta, CA 912141548000979
  45. Jacob SinghavongSan Dimas, CA 917731073358289
  46. Sharon Singletary, M.S.San Francisco, CA 941101982722500
  47. Bridgett SingletonFresno, CA 937211548149768
  48. Herbert Singleton, L.C.S.W.Oakland, CA 946121588682207
  49. Kyle SinkoffAlameda, CA 945011972855732
  50. Katelyn Sinn, LCSWRancho Cucamonga, CA 917291316464449

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.