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 81 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. Felicidad Melquiades, M.D.Clinton, MA 015101629027966
  2. Aglisa Memia, MDMelrose, MA 021761346800810
  3. Asmabanu Memon, MDLowell, MA 018541134576812
  4. Michael Mendelsohn, M.D.Boston, MA 021111851435549
  5. Paul Mendelson, M.D.Newburyport, MA 019501396727228
  6. Antonio Mendes, M.DRoslindale, MA 021311659347961
  7. Joshua MendesBrockton, MA 023011245094432
  8. Paul Mendis, MDCanton, MA 020211508074808
  9. Ravi Menon, M.D.Milford, MA 017571649557851
  10. Emmanuel Mensah, MDBoston, MA 022151831502392
  11. Natasha MeraliBoston, MA 021141487113635
  12. Gino Mercadante, D.O.Ludlow, MA 010561477559706
  13. Donna Mercado, M.D.Springfield, MA 011991346267705
  14. Evan MercerBoston, MA 021151801538632
  15. Shikha Merchia, M.D.East Bridgewater, MA 023331689648461
  16. Sali Merjanah, M.D.Boston, MA 021181295266492
  17. Henry Merola, M.D.Waltham, MA 024531902963986
  18. Irina Merport, M.D.Fall River, MA 027201992760912
  19. Mwanasha Merrill, MDBoston, MA 022151245724962
  20. Maria Mesalles Ramirez, MDBoston, MA 021181134890882
  21. Sameh Mesallum, M.D.Quincy, MA 021691952360414
  22. Abisola Mesioye, MDBedford, MA 017301124111000
  23. Mark Messenger, MDDanvers, MA 019231194726471
  24. Joshua Metlay, MDBoston, MA 021141194820779
  25. Nicole Metri, MDBrockton, MA 023011689511420
  26. Daniel Metrick, MDCambridge, MA 021381558363770
  27. Sofia MettlerCambridge, MA 021381609446848
  28. Jonathan Metzger, MDKingston, MA 023641376524314
  29. Christian MewaldtCambridge, MA 021391578952255
  30. Laura Meyer, MDBurlington, MA 018031902905326
  31. Liza Meyerhardt, MDNeedham, MA 024921962507426
  32. Corey Meyers, M.D.Pittsfield, MA 012011518900539
  33. Sylvain Meylan, MD, PHDBoston, MA 021141245631753
  34. Shaheen Mian, MDMilton, MA 021861285728469
  35. Joseph Miaskiewicz, MDSalem, MA 019701265488050
  36. Orietta Miatto, MDJamaica Plain, MA 021301518971274
  37. Constantinos Michaelidis, M.D., M.S.Boston, MA 021151184037012
  38. Angus Michaels, M.D.Worcester, MA 016101396805701
  39. Wendy Michaelson, MDBoston, MA 021141306851738
  40. Nikolaos Michalacos, MDWhitman, MA 023821083697932
  41. Donna Michelson, MDWestwood, MA 020901194712729
  42. Michael Michotek, M.D.Oak Bluffs, MA 025571346445392
  43. Vasil Mico, MDBoston, MA 021111679276190
  44. Judith Miesner, D.O.North Dartmouth, MA 027471669448635
  45. Lester Mietkiewicz, MDWorcester, MA 016051285609479
  46. Albana MihaliPlymouth, MA 023601144682287
  47. Nagy Mikael, M.D.Concord, MA 017421881652618
  48. Magda Mikhil, MDBedford, MA 017301700843943
  49. Anahid Mikirditsian, M.D.Boston, MA 021111205873254
  50. Timothy Mikulski, MDBoston, MA 021111891488201

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.