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 88 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. Christine Nayar, MDBoston, MA 021111508246356
  2. Shabana Naz, M.D.New Bedford, MA 027401780699975
  3. Amer Nazir, MDWeymouth, MA 021901487911996
  4. Christine Ndjee-Batamack, M.D.Boston, MA 021141093901449
  5. Matthew NealeBoston, MA 021181518545862
  6. Bogdan Nedelescu, M.D.Worcester, MA 016051699732800
  7. Lauren Needell, DOAuburn, MA 015011154958197
  8. Benjamin Neel, M.D., PH.D.Boston, MA 021151417163908
  9. Logeswari Neelakandan, MDSpringfield, MA 011071376048504
  10. Anil Neeli, MDLowell, MA 018541669619789
  11. Mohit Neema, M.D.Worcester, MA 016551396164943
  12. Robert Neer, MDBoston, MA 021141366423568
  13. Chabilal Neergheen, MDEast Longmeadow, MA 010281932216215
  14. Adriana Negrini, M.D.Worcester, MA 016551629430780
  15. Alon Neidich, MDCambridge, MA 021381417369406
  16. Anne Neilan, M.D., M.P.HBoston, MA 021141104021641
  17. Larissa Nekhlyudov, M.D.Boston, MA 022151053341826
  18. Jordan Nelson, MDBoston, MA 021111760285373
  19. Michael Nelson, M.D.Boston, MA 021141861843609
  20. Christopher Nemeh, MDBoston, MA 021141134625882
  21. Paul Nemeskal, M.D.Danvers, MA 019231417110446
  22. Melvin NemkovChelmsford, MA 018241649325283
  23. Aditya Neravetla, MDBrockton, MA 023011346478088
  24. David Nesanelis, M.D.Leominster, MA 014531518287416
  25. Joel Neuschatz, M.DBoston, MA 021181720036155
  26. Zeev Neuwirth, M.D.Brookline, MA 024671093764102
  27. Daniel Newman, M.D.Boston, MA 021181730166281
  28. Lawrence Newman, MDWellfleet, MA 026671548229727
  29. Ronald Newman, MDBeverly, MA 019151023005337
  30. Alla Neyshtadt, M.D.Newton, MA 024621063576296
  31. Deborah NgBoston, MA 021091700059169
  32. Frederick Ng, MDStoughton, MA 020721841281052
  33. Samuel Ng, MD, PHDBoston, MA 021151598085441
  34. Nuttapong Ngamphaiboon, M.D.Worcester, MA 016081407023302
  35. Andy Nguyen, MDCambridge, MA 021381861981458
  36. Ashley Nguyen, MDNewton, MA 024621114585460
  37. Hau Nguyen, MDWorcester, MA 016051578140646
  38. Khang Nguyen, MDWest Roxbury, MA 021321891789038
  39. Pho Nguyen, M.D.Brockton, MA 023011194089714
  40. Tatyana Nguyen, MDBoston, MA 021181952050742
  41. Vina Nguyen, MDBoston, MA 021181376963025
  42. Vuong Nguyen, M.D.Dorchester, MA 021221538351499
  43. John Niceforo, M.D.Haverhill, MA 018301982726055
  44. Robert Nicholl, M.D.Boston, MA 021171346376928
  45. Andrew Nichols, MDLexington, MA 024201598762858
  46. Britain Nicholson, MDBoston, MA 021141578563680
  47. Laura NicholsonBoston, MA 021151679063044
  48. Christopher Nicodemus, M.D.Wellesley, MA 024811740316330
  49. Eric Nielsen, MDShrewsbury, MA 015451952750556
  50. Thaddeus Nigborowicz, MDBurlington, MA 018031437257268

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.