NPPES file of Aug 9, 2026

Nurse Practitioner in Massachusetts

3,480 NPPES records list nurse practitioner with a practice address in Massachusetts, 50 per 100,000 residents, the 6th highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 32 of 70.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363L00000X · 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, 961

  1. Boston961
  2. Worcester499
  3. Burlington150
  4. Fall River96
  5. Springfield58

Nurse Practitioner records in Massachusetts

  1. Nancy Jurczak, NPBoston, MA 021141245461235
  2. Erin Justus, FNPWorcester, MA 016551689976292
  3. Julie JutrasSouthbridge, MA 015501861795882
  4. Daniel KahnWalpole, MA 020811699494294
  5. Sheela Kaithamattam, NPNorth Reading, MA 018641821484015
  6. Erin Kalberer, NPHingham, MA 020431457636714
  7. Aliki Kallas, FNP-BCSouth Hamilton, MA 019821770368094
  8. Karen Kalmakis, NPAmherst, MA 010031083791099
  9. Elana Kalus, NPDorchester, MA 021251124855739
  10. Margaret Kamin, N.P.Auburn, MA 015011356348395
  11. John Kane, N.P.Weymouth, MA 021901225045743
  12. Jain Kang, FNP-CHolyoke, MA 010401881548634
  13. Kristen Kanoff, CNPSalem, MA 019701831810084
  14. Kaitlyn KarigerReading, MA 018671932583952
  15. Carlo Kariuki, NPSalem, MA 019701932746013
  16. Donna Karl, APRNBoston, MA 021151366580490
  17. Jessica Karl, NPWorcester, MA 016551679853170
  18. Pooja KarnamadakalaBoston, MA 021141730046251
  19. Melissa Karno, NPQuincy, MA 021691023599156
  20. Paula Karol, NPOak Bluffs, MA 025571508834391
  21. Shelly Karparis, APRNBoston, MA 021141073263133
  22. Gregory Karsner, NPPlymouth, MA 023601205650207
  23. Nancy Karthas, NPBoston, MA 021151386726750
  24. Hallie Kasper, NPBoston, MA 021141891889762
  25. Amy Kassirer, RNPTaunton, MA 027801922062751
  26. Laxmi KastiBoston, MA 021141750923546
  27. Bruce Kater, NPLawrence, MA 018401992788558
  28. Ryan Katides, RN, CNPBoston, MA 021081093315863
  29. Kimberly Kats, NPWorcester, MA 016061922258565
  30. Carol Katz, APRNCambridge, MA 021391871710137
  31. R Lisa Kaufman, NPWorcester, MA 016051891761946
  32. Tara Kavanaugh, NPWestfield, MA 010851598844599
  33. Caryn Kazanjian, RN, MSN, AGACNP-BCCambridge, MA 021381235677550
  34. Natalie Kazierad, AGNPBoston, MA 021111326640061
  35. Elizabeth Keating, NPWorcester, MA 016051831163864
  36. Gabrielle Keaveney, NPBoston, MA 021181114598547
  37. Suzanne Keefe, FNP-CSNewton, MA 024601467408765
  38. Marianna Keegan, NPBoston, MA 021181720503501
  39. Joan Keel, CNPBoston, MA 021141942531934
  40. Jordan Keels, AGACNP-BCBoston, MA 021141134804156
  41. Kathleen Keenan, NPBoston, MA 021141184784050
  42. Elizabeth Keith, NPDartmouth, MA 027471720187164
  43. Daniel Kelleher, NPMarlborough, MA 017521508166646
  44. Sheryl Kelleher, NPSouthborough, MA 017721124088349
  45. Aimee Keller, MS, FNP-BCWaltham, MA 024511447804216
  46. Elizabeth Keller, NPWorcester, MA 016551902379027
  47. Lisa Keller, NPNewton, MA 024621568529014
  48. Bridget Kelley, FNPWorcester, MA 016051689396095
  49. Catherine Kelley, NPJamaica Plain, MA 021301205938677
  50. Elizabeth Kelliher, DNPBoston, MA 021151437271566

Source: CMS NPPES, primary taxonomy 363L00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 6 of 51 per resident

  1. Delaware53
  2. South Dakota51
  3. Nebraska50
  4. Massachusetts50
  5. Kansas47
  6. Minnesota45
  7. 50 states and D.C.29

Source: CMS NPPES, primary taxonomy 363L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

70.5% of these records appear in a Medicare file, against 73.4% 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. Massachusetts70.5%
  2. United States73.4%

Nurse Practitioner records in Massachusetts, measured

  • In a Medicare file2,454 of 3,480 · 70.5% here, 73.4% nationally
  • In the CMS Doctors and Clinicians file1,963 · 56.4% here, 57.4% nationally
  • Not updated in five years or more1,803 · 51.8% here, 44.6% nationally
  • Median graduation year2017 · the 1,963 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,480 NPPES records list nurse practitioner (363L00000X) as their primary taxonomy with a practice address in Massachusetts: 50 per 100,000 residents against 29 nationally (50 states and D.C.). Boston has 961 of them (28%).

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. Michigan3,574
  2. Georgia3,109
  3. New York3,097
  4. Pennsylvania3,916

States with a similar rate per 100,000

  1. Nebraska49.9
  2. South Dakota50.6
  3. Kansas46.7
  4. Delaware52.8

The largest states

  1. Florida8,844
  2. California8,223
  3. Illinois4,892
  4. Texas4,825
  5. North Carolina4,524

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.