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 77 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. Farrin Manian, M.D.,PHDBoston, MA 021141659480283
  2. Marc Manigat, M.D.Wrentham, MA 020931629028659
  3. Surjit Maniktala, MDBrockton, MA 023011801980594
  4. Alan Manivannan, MDBoston, MA 021281841870714
  5. Sonal Mankodi, M.D.Danvers, MA 019231518068865
  6. Aaron Mann, M.D.Boston, MA 021151720130420
  7. Devin Mann, MD, MSBoston, MA 021181720187511
  8. Emily Mann, MDBoston, MA 021181639638455
  9. Jessica Mann, MDBoston, MA 021181760800106
  10. Sukhpal Mann, MDPittsfield, MA 012011912951914
  11. Gordon Manning, M.D.Westborough, MA 015811235110594
  12. Jessica Manning, M.D.Boston, MA 021151063732550
  13. Mary Manning, MDBoston, MA 021141033109160
  14. Mary Manning, M.D., M.P.H.Needham, MA 024921225067838
  15. Michael Mannstadt, MDBoston, MA 021141750362661
  16. Sarath Lal Mannumbeth Renjithlal, MDBoston, MA 021111417565029
  17. Divya Manoharan, MDBoston, MA 021151699436634
  18. Joann Manson, M.D.Boston, MA 022151497870281
  19. Marc Mansour, MDSouth Weymouth, MA 021901417934522
  20. Michael Mansour, MD, PHDBoston, MA 021141437285863
  21. Rana Mansour, M.D.Brockton, MA 023021114182961
  22. Aditya Mantha, MDBoston, MA 021111720889884
  23. Gina Manzo, MDBraintree, MA 021841740231729
  24. Sharon Marable, MDLakeville, MA 023471952382012
  25. Francesca Marangell, D.O.Boston, MA 021351609250406
  26. Oliver Marasigan, MDWorcester, MA 016051407018450
  27. Joseph Marcel-Saint-Louis Demertine, M.D.Boston, MA 021161427007822
  28. Darma MarcelinBrockton, MA 023021144727322
  29. Alexandra Marchetta, MDWorcester, MA 016051851736664
  30. Felippe Marcondes, M.D.Boston, MA 021141518493444
  31. Sharon Marcus-Geller, M.D.Cambridge, MA 021381609832021
  32. Jyothi Margapuri, M.D.Worcester, MA 016551528449311
  33. David Margulies, M.D.Waltham, MA 024521942344635
  34. Natalie Mariano, M.D.Hyannis, MA 026011063420826
  35. Vincent Mariano, MDSpringfield, MA 011091962931295
  36. Laurie Marin, D.O.Auburn, MA 015011417903626
  37. Roger Mark, MDJamaica Plain, MA 021301326037219
  38. Katherine Markelz, DOFlorence, MA 010621013370279
  39. Netana Markovitz, MDBoston, MA 022151639818750
  40. Robert Marlin, M.D.Boston, MA 021181912965385
  41. Zachary Marnoy, MDBurlington, MA 018051194247841
  42. Sully Marquez FloresFramingham, MA 017021093449183
  43. Shari Marscheider, M.D.Worcester, MA 016051487636262
  44. Mallika Marshall, MDChelsea, MA 021501881667483
  45. Angela Martagon Villamil, M.D.Springfield, MA 011071063429611
  46. Jose Martagon-Villamil, MDSpringfield, MA 011071952447930
  47. Jeffrey Martens, MDYarmouth Port, MA 026751063485795
  48. Martha Martents, M.D.Cambridge, MA 021381700964848
  49. Rose Martin, MDWorcester, MA 016051063153146
  50. Yosbelkys Martin Paez, M.DBoston, MA 021351376929893

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.