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 208 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. Dianna MartinhoHyannis, MA 026011659680429
  2. Josianna Martini, LICSWGreenfield, MA 013011356499545
  3. David Martino, LICSWBrockton, MA 023011124451737
  4. Emily Martino, MSW, LICSWNorthampton, MA 010601508489394
  5. Jacqueline Martino, LICSWWest Springfield, MA 010891790900397
  6. Ashley Martins, LCSWBrockton, MA 023011578200341
  7. Luz MartinsHolyoke, MA 010401851880850
  8. Shannan Martins, LICSWGrafton, MA 015191649753450
  9. Dawn MartinsenDuxbury, MA 023321801450846
  10. Sasha Martone, LICSWNeedham, MA 024921528548989
  11. Constance MartynAmesbury, MA 019131295944213
  12. Mihoko Maru, PHD, LCSWBoston, MA 021181467051581
  13. Carolyn Dana Marvel, LICSWBeverly, MA 019151114938479
  14. Beth Marx, LICSWBoston, MA 021181619345964
  15. Natalie Maryansky, LICSWBrighton, MA 021351891045621
  16. Ashley Maryyanek, LICSWWorcester, MA 016041083190102
  17. Carolyn MarzilliNewton, MA 024621700367331
  18. Lisa Masciulli, LCSWJamaica Plain, MA 021301932227261
  19. Roxann Mascoll, LCSWBoston, MA 021181861955411
  20. Melanie Masdea-Dignum, MSW, ACHTLenox, MA 012401497237515
  21. Joan MaselliWare, MA 010821730463449
  22. Alana MaserjianBrookline, MA 024451720644438
  23. Eve Masiello, LICSWPembroke, MA 023591215321872
  24. Robert Masiello, LICSWLynn, MA 019041992393532
  25. Catherine MaslanNewton Lower Falls, MA 024621760325203
  26. Amy MasonBoston, MA 021151356026637
  27. Genevieve Mason, LICSWNewton, MA 024591487863064
  28. Gilbert Mason, PHDNewton, MA 024591568683282
  29. Janet Mason, LICSWWaltham, MA 024531124503792
  30. Jenna Mason, LCSWFall River, MA 027201326577008
  31. Matthew Mason, LICSWWoburn, MA 018011184102386
  32. William MasonWellesley, MA 024811134996101
  33. Carolyn Mason Wholley, MSW, LICSWBoston, MA 021301700998184
  34. Matthew MassaroHyannis, MA 026011427835099
  35. Bridgette MasseMarlborough, MA 017521639735095
  36. Kailey Masse, LICSWWorcester, MA 016101558939777
  37. Sherry MasseAttleboro, MA 027031730663568
  38. Pauline Massed, LICSWNew Bedford, MA 027401548362817
  39. Heidi Massefski, LICSWSharon, MA 020671255783221
  40. George Masselam, LCSWNeedham, MA 024941851904981
  41. Donna Massey, LICSWWorcester, MA 016041164430377
  42. Maddison Massey, LCSWBelmont, MA 024781356061410
  43. Marcia Massey-Key, LICSWBoston, MA 022151164549788
  44. Carol Masshardt, SOCIAL WORKER CLINICBridgewater, MA 023251962900118
  45. Elisabeth Massina, MSW, LMSWSudbury, MA 017761205503315
  46. Erica Masson, LICSWAthol, MA 013311205148038
  47. John Masson, LICSWNew Bedford, MA 027401942348537
  48. Jennifer MastStow, MA 017751346722691
  49. Mary Mastalerz, MSWSpringfield, MA 011051487914594
  50. Kayla Masterman, LICSWBoston, MA 021161902426125

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.