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 473 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. Michele O'Brien, LCSWSalinas, CA 939061942639034
  2. Renee O'Brien, L.C.S.W.Hemet, CA 925441033254479
  3. Shannon O'Brien, LCSWLancaster, CA 935341962088062
  4. Terri O'Bryan, ACSWSusanville, CA 961301407193170
  5. Dennis O'Connell, LCSWVentura, CA 930031588789143
  6. Suzanne O'Connell, LCSWBeverly Hills, CA 902121083616023
  7. Jeremy O'Conner, LCSWLos Angeles, CA 900331417373796
  8. Amy O'Connor, LCSWMcKinleyville, CA 955191225307259
  9. Anna O'Connor, MSW, LCSWMartinez, CA 945531932306248
  10. Claire O'ConnorLos Angeles, CA 900101992180673
  11. Erin O'Connor, LCSW, LMSWBerkeley, CA 947101467861815
  12. Kelly O'Connor, MSWLos Angeles, CA 900121962621698
  13. Kevin O'Connor, LCSWSanta Rosa, CA 954041659413219
  14. Kristin O'Connor, LCSWTruckee, CA 961611730547951
  15. Latisha O'ConnorNorth Hollywood, CA 916031639682255
  16. Linda O'Connor, LCSWInglewood, CA 903021831521939
  17. Meaghan O'Connor, LCSWSan Diego, CA 921791417714361
  18. Nancy O'Connor, LCSWSan Francisco, CA 941101023134913
  19. Rosa O'Connor, BAEureka, CA 955011043885387
  20. Trish O'Connor, LCSWSanta Cruz, CA 950621164873329
  21. Diane O'Donnell, LCSWLos Angeles, CA 900481760682355
  22. Hugh O'Donnell, MSWLoma Linda, CA 923571750419271
  23. Samantha O'Donnell, M.S.W.San Pedro, CA 907311861772238
  24. Sheila O'Donnell, LCSWArcata, CA 955211992981716
  25. Victoria O'DriscollRedondo Beach, CA 902771811795230
  26. Kristen O'Dwyer, LCSWSan Diego, CA 921061447672191
  27. Marcella O'Flanagan, LCSWEureka, CA 955031952420754
  28. Babara O'Gara, LCS 19166Chico, CA 959261871653709
  29. Jennifer O'GeenModesto, CA 953551619009412
  30. Anna O'Gorman, LCSWEureka, CA 955011699927038
  31. Elizabeth O'Grady, LCSWSan Diego, CA 921231083073100
  32. Peggy O'Grady, LCSWSan Francisco, CA 941431447836689
  33. Siobhan O'Grady, LCSWNapa, CA 945591578058541
  34. Christina O'Halloran, PHD, LCSWSanta Cruz, CA 950601073903050
  35. Haylie O'Hanlon, LCSWSherman Oaks, CA 914011043884950
  36. Gayle O'Hara, L.C.S.W.Los Angeles, CA 900151891970885
  37. Michael O'Hara, MSWLos Angeles, CA 900341659745198
  38. Susan O'Hara, L.C.S.W.Los Angeles, CA 900491578964003
  39. Colleen O'Hare, LCSWModesto, CA 953501982736179
  40. Joseph O'Keefe, LCSWSan Diego, CA 921081760607824
  41. Linda O'Keefe, LCSWSan Diego, CA 921061780918235
  42. Nona O'Keeffe, LCSWSacramento, CA 958231699830687
  43. Jennifer O'Leary, LCSW/LICSWSan Jose, CA 951391669982831
  44. Matthew O'Leary, MSWSan Leandro, CA 945771790939478
  45. Michele O'Leary, LCSWDowney, CA 902421447457601
  46. Christina O'Maicin, LCSWSacramento, CA 958111629557731
  47. Heather O'Malley, ASWFolsom, CA 956301770067720
  48. Marie O'Meara, LCSWSanta Rosa, CA 954091194897454
  49. Lisette O'Neal, LCSWLong Beach, CA 908061699909382
  50. Staci O'Neal-Robinson, LCSWGlendale, CA 912051619412798

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.