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 478 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. Chelsea Olivar, LCSWOrange, CA 928681780156638
  2. Erika Olivares, ASWCorona, CA 928831427191063
  3. Marinel Olivares, LCSWDuarte, CA 910101932672995
  4. Tiffany Olivares, LCSWLos Angeles, CA 900481114483997
  5. Linet Olivarez, LCSWLos Angeles, CA 900201952647604
  6. Dina OlivasOxnard, CA 930361922123710
  7. Nancy Olivas, LCSWOxnard, CA 930361043860695
  8. Phylicia Oliveira, LCSWMadera, CA 936381154531499
  9. Britany OliverEl Sobrante, CA 948031104376839
  10. Brittany Oliver, LCSWLos Angeles, CA 900451528625480
  11. Danica Oliver, MSWChico, CA 959261740025733
  12. Darrin Oliver, LCSWCompton, CA 902201033510201
  13. Elizabeth OliverSan Diego, CA 921101326296351
  14. Jean Oliver, MSW LCSWLos Angeles, CA 900081588792626
  15. Kathleen Oliver, LCSWCayucos, CA 934301174760516
  16. Kendra Oliver, L.C.S.W.Los Angeles, CA 900451154755296
  17. Madison OliverMurrieta, CA 925631194530394
  18. Michael Oliver, LCSWSan Bernardino, CA 924151609915818
  19. Nathan OliverPasadena, CA 911071891944385
  20. Robert OliverFairfield, CA 945341548003742
  21. Thomas Oliver, LCSWStockton, CA 952021124140785
  22. Sonia OliveraVentura, CA 930031578786380
  23. Mary Oliveri, LCSWHermosa Beach, CA 902541295861813
  24. Olivia Oliveros, MSWSan Bernardino, CA 924151295133080
  25. Renee Oliviel, ASWHemet, CA 925441285509133
  26. Arthur Olivo, ASWSan Jose, CA 951101740913409
  27. Crystal OlivoLynwood, CA 902621407011224
  28. Rebecca Ollivier, LCSWBakersfield, CA 933091326334764
  29. Yolonda OllowayOakland, CA 946071174079149
  30. Megan Olman, LCSWLos Angeles, CA 900241760265268
  31. Lyndon Olmeda, LCSWCompton, CA 902201144533787
  32. Darlene Olmedo, LCSWNorthridge, CA 913251811502164
  33. Elba Olmedo, LCSWDowney, CA 902421134618218
  34. Mariela OlmedoVentura, CA 930041538340369
  35. Elidia Olmos, LCSWValencia, CA 913551861689325
  36. Kitty Olmos, LCSWRoseville, CA 956781861520835
  37. Monica Olmos, LCSWBakersfield, CA 933051770140808
  38. Jill Olmstead, MSWSacramento, CA 958201386662898
  39. Edward Olpin, ACSWTurlock, CA 953801477687077
  40. Brian Olsen, A.S.W.Long Beach, CA 908131831430339
  41. Christina OlsenNevada City, CA 959591952182198
  42. Joisi Olsen, ASWLos Angeles, CA 900661720941123
  43. Joseph OlsenRocklin, CA 957651134976616
  44. Megan Olsen, LCSWIrvine, CA 926141275346355
  45. Nancy Olsen, LCSWRiverside, CA 925031730211632
  46. Rebecca Olsen, LCSWEmeryville, CA 946081740565621
  47. Shawna OlsenRedding, CA 960011093357402
  48. Adrienne OlsonValley Village, CA 916071982398020
  49. Alexandra OlsonRedwood City, CA 940611356272496
  50. Annemarie Olson, LCSWSan Rafael, CA 949011225793300

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.