NPPES file of Aug 9, 2026

Registered Nurse in Massachusetts

4,985 NPPES records list registered nurse with a practice address in Massachusetts, 71 per 100,000 residents, the 13th highest rate of 51. Boston and Cambridge have the most; each record links to the provider's NPI and the Massachusetts license search. Page 56 of 100.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · 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, 684

  1. Boston684
  2. Cambridge268
  3. Worcester255
  4. Lynn176
  5. Dorchester166

Registered Nurse records in Massachusetts

  1. Lauren Macdonald, RNLeominster, MA 014531821871617
  2. Megan Macdonald, RNMedford, MA 021551457814303
  3. Noelle MacdonaldPlymouth, MA 023601780280701
  4. Pamela Macdonald, RNChicopee, MA 010131174109771
  5. Judith Macdonnell, RNAttleboro, MA 027031477073492
  6. Ross Macdougall, RNMethuen, MA 018441487248936
  7. Shannon Macdowell, AGPCNP-BC, RNBoston, MA 021161205664034
  8. Elzeny Machado, RNCambridge, MA 021391396462651
  9. Lindsay Machado, RNFall River, MA 027201083412076
  10. Onesmus MachariaMethuen, MA 018441558287110
  11. Joy MaciasTaunton, MA 027801861880304
  12. Holly Maciolek, RNSpringfield, MA 011181881632438
  13. Melissa Mackinnon, R.N.West Roxbury, MA 021321750671939
  14. Kara Maclean, STUDENTChestnut Hill, MA 024671366212805
  15. Karen Macleod, RNHyannis, MA 026011528698958
  16. Erica MaclureWestford, MA 018861215869136
  17. William MacmillanBoston, MA 021181215405428
  18. Lyndsay MacneilDorchester, MA 021221891170031
  19. Jenna MacquestonMelrose, MA 021761922872787
  20. Michael Macy, RNBoston, MA 021181053738393
  21. Clarisse Madjeu, RN,BSNBrockton, MA 023011255282976
  22. Danielle Madruga, R.N., C.R.T.Beverly, MA 019151699135046
  23. Melissa MadsenDorchester, MA 021221104534551
  24. Oghenevwairhe MaduBoston, MA 021211356006019
  25. George MagabeRandolph, MA 023681497941587
  26. Nailya MagangcongDanvers, MA 019231033971718
  27. Jasmine MagdalenoWeston, MA 024931891663910
  28. Claudia Magdanz, RNCambridge, MA 021391174729180
  29. Danielle MagliozziHyannis, MA 026011437016482
  30. Krista Magnarelli, RNBurlington, MA 018031740158666
  31. Jill Magnuson, RNWorcester, MA 016051275779324
  32. Grace Maguire, RNMiddleboro, MA 023461356210280
  33. Kathleen Maguire, R.N.Everett, MA 021491033316880
  34. Lorraine Maguire, RNLynn, MA 019021508459975
  35. Michael MaguireBoston, MA 021141104416122
  36. Nicole Maguire, RNCanton, MA 020211376200071
  37. Phyllis Maguire, R.N.Quincy, MA 021711720113111
  38. Christi Mahan, RN, BSNBeverly, MA 019151710630041
  39. Alexandra Maher, RN, MSN, MPHBoston, MA 021151437549854
  40. Erin Maher, RNLynn, MA 019011144058116
  41. Kathleen Maher, RNLowell, MA 018521588278162
  42. Lainey Maher, RNBoston, MA 021251700477460
  43. Sophia Maher, RNBrockton, MA 023011255166849
  44. Barbara Mahoney, RNBoston, MA 021141568512820
  45. Elaine Mahoney, RN, MNCambridge, MA 021391609303007
  46. Kristen MahoneySpringfield, MA 011991679282313
  47. Maryann Mahoney, RNCambridge, MA 021391508184854
  48. Megan MahoneyBoston, MA 021281588373146
  49. Chau MaiQuincy, MA 021701861062218
  50. Diane Maia, RNSomerville, MA 021451487496659

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 13 of 51 per resident

  1. Rhode Island74
  2. New Mexico73
  3. Washington73
  4. Massachusetts71
  5. Wyoming63
  6. Hawaii62
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.7% of these records appear in a Medicare file, against 1.5% 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. Massachusetts2.7%
  2. United States1.5%

Registered Nurse records in Massachusetts, measured

  • In a Medicare file137 of 4,985 · 2.7% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file110 · 2.2% here, 1.0% nationally
  • Not updated in five years or more2,876 · 57.7% here, 57.2% nationally
  • Median graduation year2022 · the 110 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,985 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in Massachusetts: 71 per 100,000 residents against 44 nationally (50 states and D.C.). Boston has 684 of them (14%).

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. Florida4,722
  2. Wisconsin4,628
  3. Colorado4,610
  4. Pennsylvania5,372

States with a similar rate per 100,000

  1. Washington73.1
  2. New Mexico73.5
  3. Rhode Island74.2
  4. Wyoming62.8

The largest states

  1. New York25,740
  2. California13,506
  3. Ohio9,656
  4. Texas8,921
  5. Washington5,708

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.