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 66 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. Linda Oliver, PABoston, MA 022151174599492
  2. Kendra Olivieri, PA-CBoston, MA 021181851690838
  3. Andrew Olsen, MSEverett, MA 021491376025783
  4. Michelle Olsen, PA-CNew Bedform, MA 027401891189544
  5. Ashley Olson, PA-CAndover, MA 018101356195697
  6. Erik Olson, PA-CWorcester, MA 016551992375398
  7. Christina Olverd, PA-CFitchburg, MA 014201023826062
  8. Jonathan Omane, PHYSICIAN ASSISTANTNew Bedford, MA 027401275081564
  9. Gilane Omar, PABraintree, MA 021841215784400
  10. Suela Omeri, PA-CBoston, MA 021091073213088
  11. Virginia Oneil, PA-CNorwood, MA 020621669471041
  12. Katherine Oneill, PA-CBoston, MA 021151588147649
  13. Sonya Oneill, PA-CBoston, MA 021221346697422
  14. Zoe Ongaro, PAPlymouth, MA 023601790676096
  15. Brian OnyechefuleMilford, MA 017571275275588
  16. Arissa OpalaczBoston, MA 021151396410700
  17. Lindsay Ophel, PA-CBoston, MA 021161275291494
  18. Ernestina Opoku TwumwaaBoston, MA 021111720894900
  19. Nicholas Opolski, PA-CLawrence, MA 018411194366765
  20. Anika Opp-Harris, PA-CSpringfield, MA 011071134138563
  21. Sarah Orciuch, PA-CNorth Falmouth, MA 025561285065144
  22. Terra Organisciak, PA-CWorcester, MA 016551396592259
  23. Kelechi Oriaku, PA-SWorcester, MA 016551982265922
  24. Robert Orourke, PAProvinceown, MA 026571437240074
  25. Scott Orrahood, PABoston, MA 021091376606061
  26. Lee Orsky, PABoston, MA 021091063513950
  27. Christopher Ortiz, PA-CAttleboro, MA 027031558734731
  28. Elizabeth Ortiz, PA-CLudlow, MA 010561780243956
  29. Samantha Ortiz-Alvarez, PAWest Springfield, MA 010891205446473
  30. Elaine OsadchaWorcester, MA 016081548125628
  31. Ryan OsbornBoston, MA 022151073267225
  32. Elizabeth Osborne, PABoston, MA 022151992111728
  33. Sean Osborne, PABrockton, MA 023021073977823
  34. Mariana OselloBoston, MA 021151780330134
  35. Nicole Ostrikis, PA-CBoston, MA 021151932686144
  36. Natalie Oswald, PA-CDedham, MA 020261346656360
  37. Lauren Ott, PA-CWellesley, MA 024811841672029
  38. Stephanie Ott, PAWestfield, MA 010851730638651
  39. Eric Otterson, PA-CWorcester, MA 016551447661251
  40. Madeline Ouellette, PA-CBoston, MA 021151225793367
  41. Kayla Overly, PAWorcester, MA 016551720421639
  42. Gabrielle OyamaBoston, MA 021151992637961
  43. Stephen Ozaroff, PALawrence, MA 018411548252802
  44. Jennifer Ozdemir, PA-CBoston, MA 022151568943579
  45. Kira OzerChelmsford, MA 018241861365975
  46. Benjamin PacekBoston, MA 021141366124513
  47. Jasmine Pacheco, PA-CSpringfield, MA 011041124978465
  48. Katrina PachecoWorcester, MA 016081831025717
  49. Leah PachecoHyannis, MA 026011225694615
  50. Sean Pacheco, PHYSICIAN ASSISTANTBrookline, MA 024461740312735

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.