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 14 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. Demetrios Carellas, PA-CShrewsbury, MA 015451568133072
  2. Bridget Carey, PA-CDorchester, MA 021241225908908
  3. Maria Carey, PA-CNantucket, MA 025541518061910
  4. Samantha Carey, PA-CBelchertown, MA 010071265279988
  5. Shannon CareyPittsfield, MA 012011497294615
  6. Julianne Cargill, PA-CBurlington, MA 018051700242864
  7. Mary Carleen, PABoston, MA 021111952717647
  8. Brynn Carley, PA-CNewburyport, MA 019501285472910
  9. Kathryn Carlin, PA-CBoston, MA 021141710785621
  10. Madison Carney, PA-CWorcester, MA 016551811870488
  11. Megan Carney, PA-CBoston, MA 022151013743897
  12. Lydia Carollo, PA-CWilliamstown, MA 012671225015134
  13. Alison Carpenter, PA-CBeverly, MA 019151356851901
  14. Abigail Carr, PA-CFall River, MA 027201881530079
  15. Joseph Carrara, PA-CBoston, MA 021141558180448
  16. Adam CarreiroDorchester, MA 021241417455692
  17. Amanda CarreiroMattapoisett, MA 027391861388696
  18. Christopher CarrollBoston, MA 021141811764228
  19. Anna CartelliPittsfield, MA 012011144164450
  20. David Carter, PA-CWorcester, MA 016551679022875
  21. Jill Carter, PA-CNewton, MA 024621841693744
  22. Lauren Cartwright, PA-CLudlow, MA 010561861872517
  23. Jennifer Caruso, PA-CBoston, MA 021151699437434
  24. Kathleen Caruso, PANewton Centre, MA 024591023081981
  25. Ronald Caruso, PA-CWaltham, MA 024531982396693
  26. Henry Casagrande, PA-CSpringfield, MA 011071568485696
  27. Marya Casartello, PA-CAttleboro, MA 027031013580166
  28. Mackenzie Case, MPAS, PA-CBoston, MA 021151669105961
  29. Michayla Casella, PA-CSpringfield, MA 011991487286563
  30. Patricia Casella, PHYSICIAN ASSISTANTFramingham, MA 017761578762589
  31. Colleen Casey, P.A.Worcester, MA 016551962476218
  32. Samuel CaseyBoston, MA 022151962032946
  33. Nicole CashmanWorcester, MA 016081427828235
  34. Jessica Casper, PA-CBoston, MA 021151255853917
  35. Caroline Cassidy, PA-CBoston, MA 021151669165999
  36. Elizabeth Cassidy, PA-CBeverly, MA 019151639421308
  37. Shahar Castel, PA-CBoston, MA 021141275194490
  38. Erin Castelli, PA-CMedford, MA 021551881096568
  39. Gina Castiglioni, PA-CWorcester, MA 016081417315045
  40. Deven Catalano, PA-CBoston, MA 021151265125694
  41. Sara Cataldo, PA-CSpringfield, MA 011041205489390
  42. Alessandro Cavaliere, PA-CBoston, MA 022151891362109
  43. Nolan CavallaroHaverhill, MA 018351477403616
  44. Cody Cavanagh, PA-CBoston, MA 021151639802945
  45. Michael Cavanagh, PA-CSpringfield, MA 011071801817960
  46. Kristin CavanaroWeymouth, MA 021901184369688
  47. Claire Cavatorta, M.M.SC., PA-CBoston, MA 021151336247741
  48. Joshua Cayer, PA-CMilford, MA 017571457131021
  49. Iulia CebanBoston, MA 022151558104604
  50. Taylor Cedar, PANewburyport, MA 019501174867774

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.