NPPES file of Aug 9, 2026

Physician Assistant in Massachusetts

4,713 NPPES records list physician assistant with a practice address in Massachusetts, 67 per 100,000 residents, the 12th highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 81 of 95.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363A00000X · 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, 1,660

  1. Boston1,660
  2. Worcester425
  3. Springfield172
  4. Burlington154
  5. Cambridge99

Physician Assistant records in Massachusetts

  1. Jennifer Sills, PA-CFramingham, MA 017021811556541
  2. Hannah Silva, PA-CBoston, MA 021151053147918
  3. Kathleen Silva, PADartmouth, MA 027471881682979
  4. Kathryn Silvestris, PA-CLowell, MA 018541104448539
  5. Alexandra Silvonic, PA-CNewburyport, MA 019501023723426
  6. Hunter Simard, PACHyannis, MA 026011023872637
  7. Nycole SimardBoston, MA 021151386423275
  8. Brooke Simas, PHYSICIAN ASSISTANTNatick, MA 017601053084285
  9. Alice Simcoe-Matthews, PA-CBoston, MA 021191548624208
  10. Jessica Simeone, PA-CFall River, MA 027201013373794
  11. Amy Simmons, PA-CWilmington, MA 018871033597075
  12. Alexandria Simon, PA-CBoston, MA 021141174262679
  13. Audrey SimonCambridge, MA 021401518890631
  14. Emily Simonds, PA-CBoston, MA 021151548921992
  15. Andrew Simpson, PA-CBoston, MA 021181649863622
  16. Derek SimpsonDanvers, MA 019231710517875
  17. Elizabeth Simpson, PA-CPlymouth, MA 023601265052435
  18. Sarah Simpson, PA-CBoston, MA 021351861009334
  19. Kevin Sinclair, PABoston, MA 021151831659218
  20. Caterina Singas, PA-CWorcester, MA 016551013557917
  21. Natasha SinghBoston, MA 021151932952454
  22. Raina Singh, PA-CBoston, MA 022151881479731
  23. Christiana Sink, PA-CBoston, MA 021141235570045
  24. Victoria Sinyak, PA-CBoston, MA 021141588149892
  25. Michael Sirois, PA-CLynnfield, MA 019401528355856
  26. Jennifer Sittambalam, PABoston, MA 022101922797349
  27. Wilson Situ, PA-CPembroke, MA 023591891385340
  28. Emily Sjogren, PA-CSte 1400, MA 021181942914163
  29. Christopher Skelly, PA-CBoston, MA 021151033801527
  30. Wendy Skelton, P.A.Boston, MA 021181962561860
  31. Grace Skinner, PA-CSpringfield, MA 011041457037632
  32. Piper SkinnerBoston, MA 021271083364566
  33. Megan SkoczylasBoston, MA 021151831948702
  34. Brooke Skrajewski, PA-CWeymouth, MA 021901164903845
  35. Soultana-Konstantina Skritakis, PA-CWorcester, MA 016081467136911
  36. Ronald Slager, PA-CBoston, MA 021151619684560
  37. Julie Slattery, PA-CBoston, MA 021151952677197
  38. Alfred Sloss, PA-CWorcester, MA 016551598730525
  39. Katherine Slusarz, PABurlington, MA 018051851871313
  40. Nicolas Sluyter-Beltrao, PA-CSomerville, MA 021431609544428
  41. Colleen Slysz, PA-CWest Springfield, MA 010891518944115
  42. Kayla Small, PA-CCambridge, MA 021391629489430
  43. Scott Smalley, PA-CJamaica Plain, MA 021301023297793
  44. Jane Smallman, PABurlington, MA 018051659422046
  45. Christie Smethurst, PA-CBoston, MA 021181699148551
  46. Abigail Smith, PA-CBoston, MA 021151548157126
  47. Autumn SmithPittsfield, MA 012011770297418
  48. Brendan Smith, PA-CWorcester, MA 016551194277558
  49. Desiree Smith, PAWorcester, MA 016551619377843
  50. Emily Smith, PAGardner, MA 014401003232612

Source: CMS NPPES, primary taxonomy 363A00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 12 of 51 per resident

  1. Nebraska68
  2. New Hampshire68
  3. Delaware67
  4. Massachusetts67
  5. West Virginia65
  6. Colorado64
  7. 50 states and D.C.49

Source: CMS NPPES, primary taxonomy 363A00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

77.6% of these records appear in a Medicare file, against 77.9% 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. Massachusetts77.6%
  2. United States77.9%

Physician Assistant records in Massachusetts, measured

  • In a Medicare file3,659 of 4,713 · 77.6% here, 77.9% nationally
  • In the CMS Doctors and Clinicians file3,220 · 68.3% here, 62.6% nationally
  • Not updated in five years or more1,780 · 37.8% here, 39.3% nationally
  • Median graduation year2019 · the 3,217 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363A00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,713 NPPES records list physician assistant (363A00000X) as their primary taxonomy with a practice address in Massachusetts: 67 per 100,000 residents against 49 nationally (50 states and D.C.). Boston has 1,660 of them (35%).

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. Georgia4,662
  2. Illinois4,926
  3. Virginia4,408
  4. Ohio5,325

States with a similar rate per 100,000

  1. Delaware67.4
  2. New Hampshire67.5
  3. Nebraska68.3
  4. Michigan69.6

The largest states

  1. New York15,555
  2. California14,451
  3. Texas10,999
  4. Florida10,257
  5. North Carolina9,279

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.