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 80 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. Kanwon Shaw, PA-CHudson, MA 017491477170546
  2. Megan Shaw, PA-CWorcester, MA 016551427749290
  3. Molly Shaw, PA-CBrockton, MA 023011437969052
  4. Nicolette ShayevichBedford, MA 017301609581925
  5. Kaitlin SheaWorcester, MA 016551952878076
  6. Katie Sheary, PA-CAuburn, MA 015011346755261
  7. Olivia Sheerin, PA-COak Bluffs, MA 025571477914976
  8. Sophie Sheffer, PABoston, MA 021151669163077
  9. Karen ShehadeBoston, MA 021151861054108
  10. Urusa Sheikh, PA-CWaltham, MA 024531609414085
  11. Jacob Shelsy, PA-CWilliamstown, MA 012671417346974
  12. Ankara ShepardWorcester, MA 016081285347187
  13. Lindsay Shepard, PA-CUpton, MA 015681922068485
  14. Kathryn Sheppard, PA-CWaltham, MA 024511538390943
  15. Megan Sheppard, PAWorcester, MA 016551780205674
  16. Christine SheridanBurlington, MA 018051417576927
  17. Shelby Sheridan, PA-CQuincy, MA 021691699547703
  18. Shannon Sheridan-Geldart, PA-CBurlington, MA 018031912187774
  19. Courtney Sherlock, PA-CMilford, MA 017571538396023
  20. Bernadette ShermanSouth Weymouth, MA 021901043155476
  21. Lotte ShermanDartmouth, MA 027471104455161
  22. Jonathan Sheroff, PA-CMilford, MA 017571891679569
  23. Cheryl Sherrill, PA-CWorcester, MA 016051639144090
  24. Christine Shevchenko, P.A.Boston, MA 022151437550027
  25. Guidan Shi, PA-CBoston, MA 022151639747280
  26. Anne Shih, PA-CNorth Dartmouth, MA 027471578539623
  27. Katie Shikora, PA-CWorcester, MA 016551174143416
  28. Andrew Shin, PABoston, MA 021161588447080
  29. Kaitlyn Shirtcliff, PA-CBurlington, MA 018051376908012
  30. Michelle Shknevsky, PACambridge, MA 021391164931218
  31. Kaitlyn ShoelsonWatertown, MA 024721073289542
  32. Barry Shopnick, PA-CBoston, MA 021151013015437
  33. Elizabeth Shor, PA-CArlington, MA 024761801145735
  34. Marni Shore, PA-CBoston, MA 022151801640156
  35. Casie Short, PA-CGardner, MA 014401205067279
  36. Alec Shostek, PA-CGreenfield, MA 013011972223790
  37. Swornim ShresthaAttleboro, MA 027031740090117
  38. Megan Shriver, PACCambridge, MA 021391235278060
  39. Monica ShuklaBoston, MA 021151972239168
  40. Emma Shultz, PA-CBoston, MA 021151124898028
  41. Andrew ShumateBoston, MA 021141679128235
  42. Lara Sian, PASpringfield, MA 011071548193410
  43. Kelsey SicaBoston, MA 021151770146177
  44. Alissa Siciliano, PABoston, MA 021181104048362
  45. Asma SiddiquiWorcester, MA 016081255100830
  46. Kyla SiemensBoston, MA 022151316560469
  47. Heather Sienel, PA-CCharlton, MA 015071528316544
  48. Eva Siepka, P.A.Arlington, MA 024761467677781
  49. Laura Sifrig, PA-CBoston, MA 021151174036669
  50. Mark Sigwart, PA-CFalmouth, MA 025401790546752

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.