NPPES file of Aug 9, 2026

Clinical Social Worker in Massachusetts

17,815 NPPES records list clinical social worker with a practice address in Massachusetts, 254 per 100,000 residents, the 3rd highest rate of 51. Boston and Springfield have the most; each record links to the provider's NPI and the Massachusetts license search. Page 240 of 357.

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).

Boston has the most, 1,906

  1. Boston1,906
  2. Springfield624
  3. Worcester611
  4. Cambridge545
  5. Brookline393

Clinical Social Worker records in Massachusetts

  1. Christa Nunnally, LCSWSpringfield, MA 011031942521562
  2. Stephanie Nurenberg, LICSW; PHDNorthampton, MA 010601396706826
  3. Brooke Nusbaum, MSWChelsea, MA 021501043693385
  4. Bridget NusomNeedham, MA 024921821719931
  5. Madeline Nussbaum, BSWestfield, MA 010851104156165
  6. Lucinda NuthmannAmherst, MA 010021336627322
  7. Robert Nutt, MSWNorwell, MA 020611720078785
  8. Chekwube NwabuezeBoston, MA 021181427697721
  9. Margaret Mary Nwokeji, LCSWLexington, MA 024201396455887
  10. Catherine Nyary, LICSWHolyoke, MA 010401346659422
  11. Elizabeth NydamWorcester, MA 016021235708710
  12. Kate Nye, LICSWWorcester, MA 016041174815666
  13. Jacob NyklicekCambridge, MA 021381295495273
  14. Kaitlin Nylund, M.S.W., L.I.C.S.WSalem, MA 019701851589675
  15. John Nyuon, LICSWBoston, MA 021151073868733
  16. Christen O Shea, LICSWWilmington, MA 018871093750507
  17. Carly O'Brien, LCSWWorcester, MA 016051568144343
  18. Cathleen O'Brien, M.S.WWestborough, MA 015811821145178
  19. Christy O'Brien, LICSWAmherst, MA 010021992014351
  20. Claire O'Brien, LICSWNorth Andover, MA 018451629559075
  21. Devon O'Brien, MSW, LICSWBoston, MA 021301932683935
  22. Eliza O'Brien, LICSWChelmsford, MA 018241669807459
  23. Emily O'Brien, LICSWLowell, MA 018521114585312
  24. Emily O'Brien, LCSWNeedham, MA 024941568074847
  25. Folium O'Brien, LICSWAmherst, MA 010021265165906
  26. Heather O'Brien, MSWMaynard, MA 017541053560516
  27. Jill O'Brien, LICSWE Sandwich, MA 025371326349515
  28. John O'Brien, LICSWWest Springfield, MA 010891376867168
  29. Julia O'BrienBoston, MA 021151902330814
  30. Katherine O'Brien, M.S.W., L.I.C.S.W.,Worcester, MA 016041356669253
  31. Lawrence O'BrienBuzzards Bay, MA 025321700329893
  32. Leslie O'Brien, MSW, LICSWLexington, MA 024211497067631
  33. Lisa O'Brien, LICSWFall River, MA 027201356859284
  34. Mariah O'Brien, MSW, LCSWBrookline, MA 024461730602095
  35. Megan O'BrienNatick, MA 017601578600888
  36. Patricia O'Brien, M.DIV., LICSWSouth Hamilton, MA 019821801030416
  37. Sally O'Brien, L.I.C.S.W.Framingham, MA 017021962564344
  38. Sara O'BrienBeverly, MA 019151962983304
  39. Shannon O'Brien, MSW, LICSWRoxbury, MA 021191588816938
  40. Sharon O'Brien, LMHCGreenfield, MA 013011215056197
  41. Stefanie O'Brien, LCSWRoslindale, MA 021311215419270
  42. Susan O'Brien, LICSWDuxbury, MA 023321467552083
  43. Tracey O'Brien, LICSWWakefield, MA 018801245345016
  44. Virginia O'Brien, LICSWYarmouth Port, MA 026751598835779
  45. Alison O'Connell, LICSWBurlington, MA 018031952560393
  46. Ann O'Connell, M.ED.; M.S.W. LICSWArlington, MA 024741659451763
  47. Benjamin O'ConnellChelsea, MA 021501053139022
  48. Beth O'Connell, LICSWTewksbury, MA 018761447733050
  49. Carol O'ConnellWest Barnstable, MA 026681750420022
  50. Joan O'Connell, LICSWWalpole, MA 020811548283161

Source: CMS NPPES, primary taxonomy 1041C0700X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 3 of 51 per resident

  1. District of Columbia283
  2. Maine263
  3. Massachusetts254
  4. Rhode Island222
  5. Connecticut214
  6. 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.

8.4% 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. Massachusetts8.4%
  2. United States11.7%

Clinical Social Worker records in Massachusetts, measured

  • In a Medicare file1,497 of 17,815 · 8.4% here, 11.7% nationally
  • In the CMS Doctors and Clinicians file3,060 · 17.2% here, 19.1% nationally
  • Not updated in five years or more12,111 · 68.0% here, 52.9% nationally
  • Median graduation year2004 · the 3,059 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

17,815 NPPES records list clinical social worker (1041C0700X) as their primary taxonomy with a practice address in Massachusetts: 254 per 100,000 residents against 93 nationally (50 states and D.C.). Boston has 1,906 of them (11%).

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. Michigan17,644
  2. North Carolina15,561
  3. Illinois13,637
  4. Florida13,458

States with a similar rate per 100,000

  1. Maine263.2
  2. District of Columbia282.9
  3. Rhode Island222.5
  4. Connecticut213.7

The largest states

  1. California36,261
  2. New York29,293
  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.