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 57 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. Zhenyang Jiang, M.D.Worcester, MA 016051649619164
  2. Kevin Jillson, M.D.Hopkinton, MA 017481225476914
  3. Agnes Jimenez, M.D.Beverly, MA 019151235186602
  4. Sydney Jimenez, M.D.Revere, MA 021511578585105
  5. Kathryn Jobbins, D.O.Springfield, MA 011091033437165
  6. Jennifer Joe, M.D.Boston, MA 021091932368909
  7. Kevin John, MDBoston, MA 021111053045500
  8. Sheena John, M.D.Wellesley, MA 024811396784823
  9. Alyssa Johnsen, MDCambridge, MA 021381326051368
  10. Blair Johnson, MDBurlington, MA 018051891894200
  11. Brenda Johnson, M.D.Winchester, MA 018901740229749
  12. Carl Johnson, MDTopsfield, MA 019831144237215
  13. Caroline Johnson, MDBoston, MA 021181588240568
  14. Christopher Johnson, MDBrockton, MA 023011194711523
  15. Erica Johnson, M.D.Wellesley, MA 024811689660540
  16. Gregory Johnson, MDSomerville, MA 021441942213509
  17. Mark Johnson, MDCambridge, MA 021381316436793
  18. Mary Johnson, MDNewton, MA 024581083600704
  19. Micah JohnsonBoston, MA 021151952939555
  20. Michelle Johnson, MDRoxbury Crossing, MA 021201598726606
  21. Peter Johnson, M.D.Attleboro, MA 027031992729834
  22. Sarah Johnson, M.D.Cambridge, MA 021381902288780
  23. Shawn JohnsonBoston, MA 022151063102200
  24. Susan Johnson, MDWest Springfield, MA 010891114955481
  25. Terrell Johnson, M.D.Worcester, MA 016551376839563
  26. Thomas JohnsonBoston, MA 021111326724303
  27. Jehane Johnston, MDDedham, MA 020261235136508
  28. Katherine Johnston, M.D., M.A., M.SC.Boston, MA 021141164469763
  29. Jane Joiner, MDMarlborough, MA 017521922040260
  30. Michael Jolie, M.D.Milford, MA 017571760408827
  31. Samson Jolly, MDWorcester, MA 016051023758984
  32. Tzvi Jonas, M.D.Worcester, MA 016051609197326
  33. Christopher Joncas, MDFall River, MA 027211336136456
  34. Andrew Jones, MD, MPHWoburn, MA 018011588823256
  35. Clara JonesRoxbury, MA 021191669534418
  36. Emily Jones, MDBoston, MA 021301912468869
  37. Jo Jones, M.D.Boston, MA 021141215962931
  38. Kyle Jones, MDBoston, MA 021181487114963
  39. Lisa Jones, MDBurlington, MA 018051720187149
  40. Tyler JonesWorcester, MA 016051114515442
  41. Gary Jordan, M.D.Abington, MA 023511659431146
  42. Suzanne Jorey, M.D.West Springfield, MA 010891730157298
  43. April Jorge, M.D.Boston, MA 021141245593466
  44. Andrew Jorgensen, M.D.Provincetown, MA 026571134106271
  45. Aju JoseBrighton, MA 021351609484633
  46. Cyril Joseph, MDSpringfield, MA 011041720156615
  47. Joe Joseph, M.D.Chelmsford, MA 018241003340068
  48. Marina Joseph, MDSalem, MA 019701275729428
  49. Richard Joseph, M.D.Boston, MA 021151174972194
  50. Samuel Joseph, MDBoston, MA 022151356909626

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.