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 69 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. Josline Nyagahima Thompson, RNChelmsford, MA 018241679083927
  2. Angela Nyakundi, BSN-RNWorcester, MA 016071457219511
  3. Catherine Nyanjui, RNChelmsford, MA 018241952272460
  4. Sophie NyanziFramingham, MA 017011720873748
  5. Christelle NzoudaWest Brookfield, MA 015851750193850
  6. Jessica O'BrienNeedham, MA 024941639020761
  7. Kerri Ann O'Brien, RNLynn, MA 019011922415678
  8. Linda O'Brien, RNSomerville, MA 021431750666194
  9. Michael O'Brien, RNMilford, MA 017571003408881
  10. Nayanne O'BrienNorth Attleboro, MA 027601073431375
  11. Kristina O'Connell, R.N.North Easton, MA 023561770626509
  12. Christine O'Connor, R.N.Springfield, MA 011041568727485
  13. Diane O'Connor, R.N.Worcester, MA 016101578847711
  14. Ellen O'Connor, RNArlington, MA 024761881064558
  15. Karin O'Connor, RNBoston, MA 021181952443376
  16. Kristen O'Connor, RNBoston, MA 021181215263306
  17. Nancy O'Connor, N.PHyannis, MA 026011164459285
  18. Traci O'Connor, RNDorchester, MA 021221164863973
  19. Stephanie O'Dell, RNBoston, MA 021081326622564
  20. Casey O'Donnell, RN, BSNDorchester, MA 021241598350589
  21. Diana O'HareMerrimac, MA 018601164101309
  22. Kathleen O'KeefeHolyoke, MA 010401831895622
  23. Marie O'KeefeBrighton, MA 021351346553757
  24. Julianne O'Leary, RNNatick, MA 017601477418036
  25. Joell O'Malley, R.N.Centerville, MA 026321912336124
  26. Jennifer O'Neil, RNBoston, MA 021141700930930
  27. Elizabeth O'ReillyBoston, MA 021181063855096
  28. Tara O'SheaBrockton, MA 023011457516130
  29. Joseph O'SuchBoston, MA 021181275192148
  30. Kimberly O'Toole, RNWaltham, MA 024531134072929
  31. Judy Oakes, R.N.Gill, MA 013541548479876
  32. Stephen Oakley, RN MPHLynn, MA 019011699016501
  33. Jacob Oates, RNBoston, MA 021081639834104
  34. Sandly Obas, STUDENTChestnut Hill, MA 024671477267441
  35. Moses Obasekola, RNBridgewater, MA 023241568281830
  36. Jennifer ObeahonCambridge, MA 021391821584434
  37. Alfredina ObengDedham, MA 020261992552384
  38. Nicholas Obeng, RNWorcester, MA 016101780316059
  39. Bibiana ObiBoston, MA 021181972096436
  40. Nnenna ObiBoston, MA 021181427471879
  41. Adaobi Obiegbu, RNBoston, MA 021221922850965
  42. Christabel ObohStoughton, MA 020721154203370
  43. Lynette Obrien, RN, OCN, BSNCambridge, MA 021391164629960
  44. Marybeth ObrienArlington, MA 024741568891430
  45. Dylan Oconnell, RNWeston, MA 024931750232880
  46. Kristen Oconnor, RNMethuen, MA 018441427713668
  47. Kristin Oconnor, RNBedford, MA 017301285252437
  48. Lori Odell, RNShrewsbury, MA 015451437328952
  49. Fabienne Odney, RNMalden, MA 021481477036549
  50. Deborah Odunze, DNPConcord, MA 017421811719099

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.