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 185 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. Martha Lawton, MSW, LICSWAttleboro, MA 027031386059418
  2. Robert Lawton, MSWLexington, MA 024201093754616
  3. Nancy Lax, MSWHarvard, MA 014511063574770
  4. Thai LaySpringfield, MA 011081376860734
  5. Ann Layden, LICSWLeicester, MA 015241588173017
  6. Christina Laydon, LICSWWhitinsville, MA 015881366496531
  7. Shamieka Layne, MSWHyde Park, MA 021361558710996
  8. Lori Layugan, MSW, LCSWBraintree, MA 021841043983273
  9. Paula Lazar, LICSWJamaica Plain, MA 021301962977512
  10. Alice Lazare, LCSWNorthampton, MA 010601972084515
  11. Patricia Lazarek, LICSWWorcester, MA 016041487135661
  12. Juliana Lazaris, LCSWShirley, MA 014641457210262
  13. Harriet Lazarus, MSWBrookline, MA 024451376789776
  14. Jonathan Lazzara, LICSWBrookline, MA 024451588399703
  15. Kyro LeLowell, MA 018521437046240
  16. Diana Lea, LICSWMilford, MA 017571376695981
  17. Jennifer Leach, MSW, LICSWMedway, MA 020531205163581
  18. Sloane LeachNewton, MA 024581720806391
  19. Nancy Leader-Cramer, LICSWMarblehead, MA 019451326023250
  20. Emily Leadholm, LICSWCambridge, MA 021381497928170
  21. Jeanette Leaf, LICSWMarshfield, MA 020501225165665
  22. Heather Leahy, M.S.W.Worcester, MA 016041427382357
  23. Kathleen Leahy, LICSWCambridge, MA 021381912070640
  24. Timothy Leahy, L.I.C.S.WWaltham, MA 024511003086265
  25. Linda Leamy, LISCWAshburnham, MA 014301215409271
  26. Brianna LearDedham, MA 020261043791536
  27. Juliana LearBeverly, MA 019151639851371
  28. Denis LearyShrewsbury, MA 015451124663687
  29. Nancy Leary, LICSWNorth Dartmouth, MA 027471386823839
  30. Nora Leary, LICSWMilton, MA 021861003301508
  31. James Leathem, LCSWBoston, MA 021301649387150
  32. Shante Leathers-Idowu, LICSWStoughton, MA 020721003773706
  33. Rebecca Leavell, MSWHolyoke, MA 010401386257616
  34. Alexandra Leavens, LCSWBridgewater, MA 023241376260570
  35. Ellie LeavittBoston, MA 021181093651358
  36. Leah Leavitt, LCSW, MSWPeabody, MA 019601922545284
  37. Jane Leavy, MSWNewton Highlands, MA 024611104979988
  38. Nancy Lebar, MSW, LICSWHaverhill, MA 018301538641022
  39. Mary LebeauFlorence, MA 010621720558257
  40. Deborah Lebeaux, LICSWWestboro, MA 015811902992506
  41. Erin LebelBoston, MA 021181851873137
  42. Rebekah LebelHyannis, MA 026011790448371
  43. Elaine Lebel LicswRoxbury, MA 021191770121634
  44. Katherine Lebherz, LCSWFalmouth, MA 025401043942949
  45. David LeblancWaltham, MA 024521427540483
  46. Hallie Leblanc, LICSWNewton, MA 024591528328242
  47. Karen Leblanc, LCSWNew Bedford, MA 027401851501555
  48. Katherine Leblanc, LSW, MSWWest Springfield, MA 010891356820385
  49. Krystal Leblanc, LCSWWorcester, MA 016061174157259
  50. Maria Leblanc, M.ED, MSW, LICSWHadley, MA 010351639147721

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.