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 16 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. Alexander Braun, MDBoston, MA 021181821748484
  2. Edith Braun, M.D.Chestnut Hill, MA 024671538130422
  3. Edward Braun, MDLynn, MA 019041003862798
  4. Peter Braun, M.D.Arlington, MA 024741992820815
  5. Elliott Brea, MD, PHDBoston, MA 021151972093318
  6. Arthur Bregoli, M.D.Braintree, MA 021841801863196
  7. Beverly Brennan, M.D.Haverhill, MA 018301174519730
  8. Patrick Brennan, M.D., PH.D.Boston, MA 021151053458406
  9. Melissa Bresnahan, APRNMiddleboro, MA 023461831658061
  10. Michael Bresnahan, MDReading, MA 018671255405973
  11. Louis Bresnick, M.D.N Chelmsford, MA 018631205861390
  12. Ari Brettman, M.D.Boston, MA 021141972762300
  13. Anthony Breu, M.D.Boston, MA 022151225205263
  14. Robert Brew, M.D.Burlington, MA 018031356449409
  15. Arthur Brewer, M.D.Westborough, MA 015811457360588
  16. Elisabeth Brewer, M.D.Westborough, MA 015811902853690
  17. Anne Brewster, MDBoston, MA 021141356329353
  18. Kenneth Bridges, M.D.Cambridge, MA 021391083744684
  19. Edward Briercheck, M.D., PH.D.Boston, MA 021151801282306
  20. Laura BrightmanSomerville, MA 021451801970546
  21. David Brill, MD, MA, MPHLeeds, MA 010531063533545
  22. Miguel Brillantes, MDFall River, MA 027201609878859
  23. Wunnie Brima, MDBoston, MA 021151508280603
  24. Gary Brissette, M.D.Sharon, MA 020671518072578
  25. Michael Britt, MD IDBurlington, MA 018031831186071
  26. Vanessa Britto, M.D.Wellesley, MA 024811457418634
  27. Kathryn Britton, M.D.Boston, MA 021151508872847
  28. Oneil Britton, MDBoston, MA 021151760428726
  29. Peter Britton, M.D.Wellesley, MA 024811184695082
  30. Diane Brockmeyer, M.D.Boston, MA 022151467499574
  31. Conor BrockwayCambridge, MA 021381245026160
  32. Richard Brodie, M.D.Brookline, MA 024461912900473
  33. William Brodkin, M.D.Leominster, MA 014531457468670
  34. Alexander Brodski, MDCambridge, MA 021381841711660
  35. Jennifer Brody, M.D., MPHBoston, MA 021181386796043
  36. Oren Brody, DOSpringfield, MA 011071700091998
  37. Mary Brogan, M.D.Wellesley, MA 024811912987454
  38. Gabrielle Bromberg, MDBoston, MA 021141437689676
  39. Jackie Bronico, M.D., MSCCambridge, MA 021411275912164
  40. Danielle Brook, M.D.Foxborough, MA 020351245265651
  41. Alison Brookes, MDBoston, MA 021141013992254
  42. Katherine Brooks, MDBoston, MA 021151659729341
  43. Robert Brooks, DOWorcester, MA 016051558337600
  44. Rachel Broudy, MDSpringfield, MA 011071669582110
  45. Stephen Brovender, MDChelmsford, MA 018241275496036
  46. Christine Brown, M.D.Acton, MA 017201588861660
  47. David Brown, MDBoston, MA 021141629042775
  48. James Brown, MDPeabody, MA 019601134194855
  49. Jenifer Brown, M.D.Boston, MA 021151548673312
  50. Kristina BrownBrookline, MA 024461326675638

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.