NPPES file of Aug 9, 2026

Internal Medicine Physician in Massachusetts

6,825 NPPES records list internal medicine physician with a practice address in Massachusetts, 97 per 100,000 residents, the 2nd highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 78 of 137.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 2,320

  1. Boston2,320
  2. Worcester448
  3. Cambridge300
  4. Springfield282
  5. Burlington144

Internal Medicine Physician records in Massachusetts

  1. William Martin-Doyle, M.D.Boston, MA 021151396158721
  2. Michelle MartinchekBoston, MA 021301477817815
  3. Aida Martinez, MDWellesley, MA 024811366647984
  4. Michael Martinez, MDBoston, MA 021151073215455
  5. Ricardo Martinez-RodriguezWorcester, MA 016051124612361
  6. Norianne Martinez-ViotaBoston, MA 021111356033484
  7. Audrey MartinoBoston, MA 021111316525702
  8. Sandra Lee Marwill, M.D.Needham, MA 024921003874637
  9. Hazel Marzan, M.D.Fall River, MA 027211255537478
  10. Evan Marzouk, MDSpringfield, MA 011071215668660
  11. Stephanie Mascia, M.D., M.P.HCambridge, MA 021381922413582
  12. Nicholas Michael Mascoli, M.D.Newton Lower Falls, MA 024621013964717
  13. Azmat Maskati, M.D.Brockton, MA 023011770530792
  14. Barbara Masley, M.D.Leominster, MA 014531932165818
  15. Daniel Massarelli, M.D.Worcester, MA 016051467435131
  16. Peter Massicott, MDBoston, MA 021151265545917
  17. Georges Massih, MDBrighton, MA 021351467651414
  18. Robert Master, MDCambridge, MA 021401518048131
  19. Steven Master, M.D.Cambridge, MA 021381255564837
  20. Valeria Mata, MDFramingham, MA 017021386377596
  21. Manuela Matei, M.D.Somerville, MA 021441467404475
  22. Steven Matfis, M.D.Quincy, MA 021691053377945
  23. Caryl Mather, MDCambridge, MA 021381306959325
  24. Marsha Mather, MDHyannis, MA 026011831772623
  25. Benson Mathew Abraham, MDLowell, MA 018541538655733
  26. Rashika Mathews, M.D.Cambridge, MA 021381962468868
  27. Anupam Mathur, MDHudson, MA 017491720048424
  28. Shreya MathurBoston, MA 021141326748989
  29. Shaukat Matin, MDPalmer, MA 010691295792943
  30. Anne Matsko, MDBoston, MA 021181285126383
  31. Mirai Matsuura, MDBoston, MA 021141952044422
  32. Lalita Matta, M.D.Marlborough, MA 017521043232663
  33. Eric Matthews, D.O.Uxbridge, MA 015691275730368
  34. Jane Matthews, M.D.Chestnut Hill, MA 024671013071604
  35. Madeleine Matthiesen, MDBoston, MA 021141972916963
  36. Rapeephan Maude, M.D,, MSC,, DTM&HWorcester, MA 016081851655492
  37. Alexandria Maurer, MDBoston, MA 021141215457494
  38. Antonietta Mauri, MDPlymouth, MA 023601609838416
  39. Saverio Maviglia, MD MSBoston, MA 021151417972019
  40. Marat Mavliutov, MDHyannis, MA 026011366004335
  41. Alison May, M.D.Boston, MA 021181942245030
  42. Folashade May, M.D.Boston, MA 021141962698563
  43. Carolina Maya Lopera, MDFramingham, MA 017021639660673
  44. Kittika Mayall, DOSouth Weymouth, MA 021901700382611
  45. Kate Mayans, M.D.Fall River, MA 027201477901254
  46. Felix Mayers, M.D.Brockton, MA 023021295772309
  47. John Mayfield, MDBoston, MA 021141669030722
  48. Robin Mayfield, M.D.Brookline, MA 024451225098924
  49. Haya Ilana Mayman, M.D.Medfield, MA 020521487780078
  50. Kevin Maymi-QuintanaBoston, MA 021181750964896

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia133
  2. Massachusetts97
  3. Rhode Island94
  4. Connecticut73
  5. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.5% of these records appear in a Medicare file, against 78.7% 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. Massachusetts74.5%
  2. United States78.7%

Internal Medicine Physician records in Massachusetts, measured

  • In a Medicare file5,088 of 6,825 · 74.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file4,103 · 60.1% here, 61.4% nationally
  • Not updated in five years or more4,346 · 63.7% here, 55.4% nationally
  • Median graduation year2004 · the 4,103 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

6,825 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Massachusetts: 97 per 100,000 residents against 44 nationally (50 states and D.C.). Boston has 2,320 of them (34%).

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. Illinois7,238
  2. Pennsylvania7,300
  3. Michigan5,735
  4. Ohio5,277

States with a similar rate per 100,000

  1. Rhode Island94.3
  2. Connecticut72.5
  3. Maryland63.2
  4. Hawaii62.9

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.