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 10 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. Reginald Barnett, MDMattapan, MA 021261649207051
  2. Scott Barnett, MDLongmeadow, MA 011061629087598
  3. David Baron, MDCambridge, MA 021391376503318
  4. Connie Barr, M.D.Dedham, MA 020261740280643
  5. Lawrence Dwight Barr, M.D.Attleboro, MA 027031225192321
  6. John Barravecchio, M.D.Milton, MA 021861801997564
  7. Jason Barrera, MD, PHDBoston, MA 021141770879231
  8. Thaylon Barreto, MDFall River, MA 027201811552169
  9. Alison Barrett, MDBoston, MA 021151699527523
  10. Virginia Barrow, M.D.Boston, MA 021181639175466
  11. Ibrahim Barry, M.D, M.P.H,Boston, MA 021151447643440
  12. Jean Barry, M.D.Concord, MA 017421396763801
  13. Michael Barry, MDBoston, MA 021141225019045
  14. Miriam Barshak, MDBoston, MA 021141154370583
  15. Anthony Bartley, M.D.Worcester, MA 016081922362003
  16. Alice Barton, MDHarwich, MA 026451558355016
  17. James Bartz, MDBoston, MA 021141801917372
  18. Elenie Bartzokis, M.D.Waltham, MA 024511992827067
  19. Sushma Kumari Basa, M.D.Shrewsbury, MA 015451720342181
  20. Matthew BasciottaBoston, MA 022151225418049
  21. Basak Basdag, MDBoston, MA 021141376883553
  22. Allison Basel, MDBrockton, MA 023021326577453
  23. Ahmed Basheer, MDNorfolk, MA 020561467416958
  24. Zainab Basheer, M.D.Worcester, MA 016081164862694
  25. Bashir Bashiruddin, MDWestfield, MA 010851578513222
  26. Sarah Bashiruddin, M.D.Westfield, MA 010851396192738
  27. Samjhana Basnyat, M.D.Salem, MA 019701629481320
  28. Denise Basow, M.D.Waltham, MA 024531609883255
  29. Jeffrey Bass, MDChestnut Hill, MA 024671952350969
  30. Neveen Bassaly, M.D.Fall River, MA 027211649274911
  31. Ingrid Bassett, MDBoston, MA 021141396735676
  32. Dhrubajyoti Basu, M.D., MPHNorwood, MA 020621740450618
  33. Gaurab Basu, MDBoston, MA 021151538488812
  34. Nisha Basu, MDWatertown, MA 024721790723310
  35. Sanjay Basu, MDAyer, MA 014321285682450
  36. Maren Batalden, MDCambridge, MA 021391881816098
  37. John Batbouta, MDSpencer, MA 015621417916875
  38. Carol Bates, M.D.Boston, MA 022151235231655
  39. David Bates, MDBoston, MA 021151013974708
  40. Rebecca Bates, MDBoston, MA 021181891180626
  41. Durga Bathini, M.D.Shrewsbury, MA 015451093798076
  42. Elisabed Batiashvili, MDBoston, MA 021351720823537
  43. Maria Batilo, MDNorth Falmouth, MA 025561952465866
  44. Tsisia Batsashvili, MDBoston, MA 021351144065996
  45. Natalia Batt, MDMedford, MA 021551245415884
  46. David Battinelli, M.D.Boston, MA 021181710942792
  47. Brian Battista, MDSouth Weymouth, MA 021901821075961
  48. Marianne BauerLynn, MA 019011902216021
  49. Mark Bauer, M.D.Watertown, MA 024721487625307
  50. Amy Baughman, M.D.Brockton, MA 023011891938528

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.