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 71 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. Bertha OppongWorcester, MA 016041649950619
  2. Dawn Opstad, RNBoston, MA 021181770935728
  3. Leakhena Or, R.N.Lowell, MA 018541770811994
  4. Chinelo OranekwuLynn, MA 019051003706748
  5. Victoria Oratovsky, R.N. W.C.CNewton, MA 024591316191182
  6. Samantha OrciariChestnut Hill, MA 024671467263475
  7. Pamela OriakuHolbrook, MA 023431598626004
  8. Katherine OrlinBoston, MA 021181831422872
  9. Holly Orloff-Parry, RNChestnut Hill, MA 024671558612333
  10. Vanessa Orneus, RNNewton, MA 024591205646205
  11. Vivian OrofoRandolph, MA 023681467844431
  12. Xandra OrogoPeabody, MA 019601023823945
  13. Dessiree Ortega, RNMethuen, MA 018441194414367
  14. Candy Ortiz, R.N.Marblehead, MA 019451396138160
  15. Evelyn Ortiz, RNWorcester, MA 016051518281435
  16. George Ortiz, RNBoston, MA 021111336529270
  17. Iris Ortiz, RNCharlestown, MA 021291700410321
  18. Maritsabel OrtizMethuen, MA 018441508471673
  19. Maya Ortiz, RNLawrence, MA 018411982587861
  20. Mylissa OrtizBoston, MA 021221437508173
  21. Sonamy Ortiz, RNWorcester, MA 016091033360722
  22. Gabriella Ortiz Izquierdo, RNBoston, MA 021221033707583
  23. Jesse Orton, RNMalden, MA 021481285360206
  24. Debra OsagieSpringfield, MA 011081881332799
  25. Monday OsaigbovoLynn, MA 019051417499021
  26. Marie Osborn, RNCambridge, MA 021391861834731
  27. Dora Osei, RNWorcester, MA 016051215664040
  28. Dorothy OseiWorcester, MA 016051720937691
  29. Janet OseiCambridge, MA 021391740855725
  30. Afia Osei Assibey, RNChelmsford, MA 018241255179826
  31. Steven Osei-MirekuChicopee, MA 010131073276283
  32. Stephanie Osganiain, RNBoston, MA 022101376470724
  33. Wanda Osgood, R.N.Methuen, MA 018441346590171
  34. Christina Oshea, RNDanvers, MA 019231790034999
  35. Deen Oshun, NPLynn, MA 019021386218113
  36. Emily Osinubi, RNDorchester, MA 021221194064337
  37. Karla Osorio, RNEverett, MA 021491912499625
  38. Marlena OsowskiBoston, MA 021111386335776
  39. Amy Ostrowski, RNHanover, MA 023391497621189
  40. Bernard Osuagwu, RNMillis, MA 020541518350958
  41. Mary Osullivan, RN REGISTERED NURSEDorchester, MA 021221699944041
  42. Samantha OsundeBoston, MA 021221154196707
  43. Moruph Osuolale, RNLowell, MA 018521205649993
  44. Kristen Oteri, RNDedham, MA 020261497391312
  45. Leisha Otero, RNFitchburg, MA 014201063251759
  46. Ashley Oti, RNBoston, MA 021181740729367
  47. Sarom Ouch, RNRevere, MA 021511235772138
  48. Sary Ouch, RNRevere, MA 021511902293426
  49. Brian OuelletteGreenfield, MA 013011780405217
  50. Joseph Ouellette, RNHaverhill, MA 018321548380280

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.