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 479 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. Annika Olson, M.S.W.Pleasant Hill, CA 945231194986216
  2. Ashley Olson, LCSWNapa, CA 945591003486085
  3. Carol Olson, LCSWSan Francisco, CA 941341154882090
  4. Edward Olson, LCSWFair Oaks, CA 956281861808008
  5. Karen Olson, LCSWPalm Desert, CA 922601114237997
  6. Karin Olson, LCSWPacific Palisades, CA 902721790039527
  7. Kent Olson, LCSWSan Jose, CA 951171346373099
  8. Kira OlsonAtascadero, CA 934221780070383
  9. Krista Olson, LCSW, LCSW-CSunnyvale, CA 940851659922961
  10. Maryellen Olson, LCSWWatsonville, CA 950761366365967
  11. Meagan Olson, ASWSacramento, CA 958411861516114
  12. Mollie Olson, LCSWSan Jose, CA 951101265021059
  13. Randy Olson, L.C.S.W.Visalia, CA 932771447268826
  14. Suzanne Olson, MSW, LCSWPalo Alto, CA 943011558571711
  15. Tristan OlsonSan Leandro, CA 945771396290920
  16. Betty Olson-Greathouse, LCSWSan Diego, CA 921611811914880
  17. Aydin Olson-Kennedy, ACSWEncino, CA 913161538582788
  18. Diane OlveraSan Fernando, CA 913401245616804
  19. Lissette OlveraSylmar, CA 913421679444517
  20. Margie Olvera, LCSWLos Angeles, CA 900271043418312
  21. Maria OlveraLos Angeles, CA 900171275923054
  22. Monique Olvera AguileraVisalia, CA 932911336951276
  23. Isabel Olvera HernandezOrange, CA 928681578303533
  24. Sarah Olynger, LCSWCarlsbad, CA 920081285497354
  25. Marcia Omachi, LCSWSan Francisco, CA 941241831274380
  26. Lynda Omagari, LCSWNorco, CA 928601952546186
  27. Helene Omansky, LCSWDaly City, CA 940151023516929
  28. Sally OmarLos Angeles, CA 900171902239734
  29. Thomas Omeara, LCSWSacramento, CA 958311629103718
  30. David OmonuaPerris, CA 925711700489770
  31. Ayumi OmotoLos Angeles, CA 900151992106850
  32. Diana On, LCSWChino Hills, CA 917091033346705
  33. Irene Mae Ona, LCSWSan Diego, CA 921071669261301
  34. Keri Onan-Levy, LCSWSan Diego, CA 921231710229042
  35. Beatriz OnateHanford, CA 932301699335885
  36. Elizabeth (libby) Onchiri, LCSWBakersfield, CA 933081528837622
  37. George Ondek, ACSWLos Angeles, CA 900731093573685
  38. Christopher Onderdonk, LCSWLa Mesa, CA 919411194028951
  39. Tocosa Onea, L.C.S.W.Berkeley, CA 947041225063134
  40. Sheridan Oneal, LCSWLos Angeles, CA 900691851933949
  41. Kelsey OneilWalnut Creek, CA 945961508582677
  42. Robin OneillSan Pablo, CA 948061184829467
  43. Jacqueline OngOakland, CA 946181649930082
  44. Mi Yeun Ong, LCSWLos Angeles, CA 900571700385176
  45. Ololade OniSacramento, CA 958381548788011
  46. Maria OnoBakersfield, CA 933061033364187
  47. Sunyata Ono, LCSWPasadena, CA 911051720535784
  48. Karina Onofre, LCSWValley Village, CA 916071093388795
  49. Susanna OnofreSanta Ana, CA 927011346888518
  50. Joseph OnstottRoseville, CA 956781538045018

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.