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 85 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. Susan Moynihan, MDMarblehead, MA 019451912953605
  2. Muhammad Mubarak, M.D.Plymouth, MA 023601053707067
  3. David Mudd, MDBrockton, MA 023011750376794
  4. Michele Mudgett, MDNorwell, MA 020611821070897
  5. John Mudrock, M.D.Wakefield, MA 018801780675751
  6. Stephanie Mueller, M.D.Boston, MA 022151780865667
  7. Hanno Muellner, MDWilliamsburg, MA 010961548220684
  8. James Mugford, MDIndian Orchard, MA 011511760582019
  9. William Mugg, MDSo Hadley, MA 010751689761959
  10. Nancy Mugisha, MDBoston, MA 021151255837464
  11. Tafadzwa Muguwe, M.D.Cambridge, MA 021381811284177
  12. Maged Muhammed, MDNewton, MA 024621952664948
  13. Elizabeth MuhiaWorcester, MA 016091649886235
  14. Afrina Mujib, M.D.Stoughton, MA 020721891948592
  15. Kenneth Mukamal, M.D.Boston, MA 022151235238551
  16. Arun Mukherjee, MDBurlington, MA 018051205817806
  17. Vaibhavi Mukhtiar, MDWorcester, MA 016081689351504
  18. Elisa Mulcahy, MDBrockton, MA 023011952397176
  19. Thomas Mulcahy, MDHanson, MA 023411578543104
  20. Neetu Mulchandani, M.D.Peabody, MA 019601841637535
  21. Amara Mulder, M.D.Norwell, MA 020611558681445
  22. David Mulder, DOPeabody, MA 019601174505507
  23. Gerald Muldoon, M.D.Dorchester Center, MA 021241821076563
  24. Amruta MuleySpringfield, MA 011071750679478
  25. Mark Mullan, MDSpringfield, MA 011041700862638
  26. Manasa Mullapudi, M.D.Boston, MA 021351366893604
  27. Jewel Mullen, M.D.Springfield, MA 011091902864861
  28. William Muller, M.D.Uxbridge, MA 015691891758090
  29. Albert Mulley, MDBoston, MA 021141083605299
  30. Timothy Mulligan, M.D.Springfield, MA 011071619924099
  31. Catherine Mullin, FNPOsterville, MA 026551952986721
  32. Muhammad Mumtaz, M.D.Brockton, MA 023011902841927
  33. Tayebah Mumtaz, MDBrighton, MA 021351164943031
  34. Ranjana Mundhe, MDWatertown, MA 024721063542660
  35. Lata Mundkur, M.D.Lowell, MA 018541487645248
  36. Neal Muni, MD, MSPHMarlborough, MA 017521972587822
  37. Maura Munoz, M.D.Springfield, MA 011091871736728
  38. Myria Munoz, MDLeominster, MA 014531942261987
  39. David Munson, M.D.Boston, MA 021181033346580
  40. Benedikt Munzar, MDBoston, MA 021111225779457
  41. Natasha Muppidi, MDBoston, MA 021111386587384
  42. Syed Muqqadus, M.D.Brockton, MA 023011124259775
  43. Joanne Murabito, M.D., SCMBoston, MA 021181568449064
  44. Dina Murad, MDBoston, MA 021111740912393
  45. Anahit Muradyan, M.D.Pittsfield, MA 012011952751869
  46. Mark Murakami, M.D.Boston, MA 022151659508125
  47. Anushya Murale, M.D.Winchester, MA 018901669420311
  48. Sascha Murillo, MDBoston, MA 021181174159040
  49. Colleen Murphy, M.D.Milford, MA 017571942235098
  50. Dennis Murphy, MDAuburn, MA 015011841266848

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.