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 17 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. Mary Brown, MD MPHChestnut Hill, MA 024671548227853
  2. Nathaniel Brown, MDHanscom Afb, MA 017311336132745
  3. Sarah Brown, MDBoston, MA 021181932840337
  4. Wayne Brown, M.D., M.SC., M.P.H.Lexington, MA 024201831136555
  5. Robert Browne, MDNorth Dartmouth, MA 027471427027697
  6. Thomas Browning, M.D.Plymouth, MA 023601528134210
  7. Matthew Brumbaugh, M.D.Attleboro, MA 027031346478534
  8. Gaelle Brun-Cottan, MDBoston, MA 021181356882617
  9. John Brusch, MDCambridge, MA 021391639138449
  10. Alan Brush, M.D.Cambridge, MA 021381043281942
  11. Davis Bu, M.D.Wakefield, MA 018801154303550
  12. Kelly Buchanan, MDBoston, MA 021141083240055
  13. Denise Buckley, MDChestnut Hill, MA 024671649217381
  14. Grace Buckley, MBBSSpringfield, MA 011991497437198
  15. Kimberly Buckman, M.D.Wayland, MA 017781699793786
  16. Kimberly Bucknor, M.D.Holyoke, MA 010401972814960
  17. Sunil Buddaraju, M.D.Burlington, MA 018051194088161
  18. Svetlana Budman, M.D.Brighton, MA 021351376642157
  19. Susan Budnick, M.D.Boston, MA 441061396165569
  20. Maria Clarinda Buencamino-Francisco, MDHingham, MA 020431659540664
  21. Catherine Buettner, MDBoston, MA 021131487692604
  22. An Bui, M.D.Boston, MA 021151982923470
  23. Pablo Buitron De La Vega, M.D.East Boston, MA 021281982997557
  24. Andreea Bujor, MDBoston, MA 021181790031615
  25. Jorgjeta Bukli, M.D.Worcester, MA 016551639472863
  26. Jeanine Bulan, MDChestnut Hill, MA 024671053357582
  27. Andrea Bullock, M.D.Boston, MA 022151154494466
  28. Gentiana BunguriBoston, MA 021201316313992
  29. Agnieszka Buniowska-Popiolek, M.D.Franklin, MA 020381992127369
  30. Drew BunkerRevere, MA 021511699206128
  31. Carol Burd, M.D.Wellesley, MA 024811114998036
  32. Matthew Burdette, DOWellfleet, MA 026671407240955
  33. Brian BurkeGreat Barrington, MA 012301376672519
  34. Katelyn Burke, NPLowell, MA 018521588181259
  35. John Burnham, MDDalton, MA 012261467548875
  36. Paul Burns, MDArlington, MA 024761780635573
  37. Risa Burns, M.D.Boston, MA 022151053413476
  38. Alan Burstein, M.D.Chicopee, MA 010201962465468
  39. Michael Burton-Williams, MDSalem, MA 019701033169214
  40. Jordan Busch, M.D.Wellesley, MA 024811033158563
  41. Booker Bush, M.D.Springfield, MA 011091841303435
  42. Eric Bush, MDGt Barrington, MA 012301801987151
  43. Besa Bushati, M.D.,Milford, MA 017571295911121
  44. Edward Busick, M.D.Waltham, MA 024531467436931
  45. Ashley Butland, MDMilford, MA 017571306265541
  46. Jane Butlin, MDBrockton, MA 023011013990050
  47. Zeeshan Butt, MDSpringfield, MA 011071790185767
  48. John Butter, MDBoston, MA 021151629037064
  49. Brittany Bychkovsky, MDBoston, MA 022151457510075
  50. Elena Byhoff, MDWorcester, MA 016551780903625

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.