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 84 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. Gordon Moore, MDCambridge, MA 021381508919655
  2. Marianne Moore, M.D.Danvers, MA 019231649290776
  3. Robert Moore, MDNorth Falmouth, MA 025561275599805
  4. Vamsi Mootha, M.D.Boston, MA 021141528040615
  5. Eduardo Moraes Leao PeixotoNorth Easton, MA 023561124433347
  6. Donald Moran, M.D.Somerville, MA 021431639116858
  7. Sienna Moran, MDBoston, MA 021111225245111
  8. Susan Moran, M.D.Millbury, MA 015271225010390
  9. Susan Moran, MDBoston, MA 021141679564280
  10. Yueling Moran, MDCambridge, MA 021381891079836
  11. Kyle Morawski, M.D.Boston, MA 021151205197084
  12. Catherine Morazzi, M.D.East Falmouth, MA 025361255310389
  13. Armenia Mordan Vasquez, MDWorcester, MA 016051891179735
  14. Simone Mordas, MDNatick, MA 017601073507984
  15. Carlos Moreno, MDNorwood, MA 020621144316902
  16. Jose Moreno ChiribogaLowell, MA 018541770906570
  17. Gala Moreno LepeBoston, MA 021151104515527
  18. Eleanor Moresco, MDMedford, MA 021551790775211
  19. Katherine Morgan, MDBoston, MA 021151013379114
  20. Carrie Morgenstein, M.D.Boston, MA 022151417183690
  21. Steven Morgenstern, M.D.Chelmsford, MA 018241053377390
  22. Raul Morinigo, MDBrighton, MA 021351558882936
  23. Katharine Morley, M.D.Chelsea, MA 021501134232895
  24. Monica Morlote, M.D.Roxbury, MA 021191093752735
  25. Natalie Morone, MDBoston, MA 021181629042387
  26. Michelle Morreale-Karl, MDBoston, MA 021301225248255
  27. James Morrill, MD PHDCharlestown, MA 021291952419764
  28. Evelyn Morris, M.D.Worcester, MA 016021598712333
  29. Patricia Morrison, C.N.P.Newton Lower Falls, MA 024621548331879
  30. Erin Morrissette, MDNorwell, MA 020611124182233
  31. Eli Morse, MDBrighton, MA 021351700576352
  32. Frances Morse, MDLowell, MA 018541053373860
  33. Michelle Morse, MDBoston, MA 021151659530517
  34. Randall Morse, M.D.Worcester, MA 016051699901488
  35. Moustafa Morsi, MDWorcester, MA 016081144066309
  36. Elizabeth Mort, MDBoston, MA 021141255315552
  37. Riad Mortada, MDNorfolk, MA 020561902974256
  38. Andrew Moskovitz, M.D.Springfield, MA 011041487671962
  39. Michael Moskowitz, MDBoston, MA 021141184695702
  40. Susan Mosler, MDFlorence, MA 010621245213735
  41. Jacquelyn Moss, M.D.Chelsea, MA 021501518282698
  42. Martha Moss, M.D.Quincy, MA 021691023074366
  43. James Most, MDNorthampton, MA 010601518982933
  44. Khalil Mouchantaf, MDSalem, MA 019701609826700
  45. Manasa MouliBoston, MA 021111417337031
  46. Runna Moussa-Pervane, MDBoston, MA 021161215190087
  47. Antonios Mouzakis, MDWorcester, MA 016051083267421
  48. Lillian Moy-Yee, M.D.Wilmington, MA 018871730162181
  49. John MoyerBoston, MA 021351265227953
  50. Patricia Moyer, MDBelmont, MA 024781619974979

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.