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 50 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. George Hayao, M.D.Burlington, MA 018051942278445
  2. Gale Haydock, MDBoston, MA 021141336139591
  3. Frances Hayes, MDBoston, MA 021141528058856
  4. Christina Hayfron-Benjamin, MDAgawam, MA 010011447350772
  5. Lewis Hays, M.D.Lynn, MA 019011619070711
  6. Brandon HayseBoston, MA 022151689239543
  7. Kathryn Hayward, MDBoston, MA 021141104817097
  8. Bessie Hazard, MDWorcester, MA 016051558300442
  9. Deborah Hazen, M.D.Shrewsbury, MA 015451427038645
  10. Shunian He, MDMarlborough, MA 017521740207471
  11. Michael Healey, MDJamaica Plain, MA 021301891752200
  12. Angela Healy, MDBurlington, MA 018051124178702
  13. Jane Healy, M.D. PH.D.Boston, MA 021151770807984
  14. Kevin Heaton, MDBoston, MA 021141255771804
  15. Nicholas HebdaWorcester, MA 016051477130680
  16. Christine Hebert, MDWorcester, MA 016051053998625
  17. James Heffernan, M.D.Boston, MA 022151366578940
  18. Jonathan Heflin, MD, MPHBoston, MA 021141194956573
  19. Jaye Hefner, MDBoston, MA 021151053384867
  20. Rebecca Hefner, MDBoston, MA 021141225297682
  21. Deidre Hein, DOSouthborough, MA 017721184023103
  22. Walter Heine, M.D.Worcester, MA 016551720341001
  23. Alfred Heinser, MDGroton, MA 014501871570218
  24. Rebecca Heist, MD MPHBoston, MA 021141184697278
  25. Agnieszka Heith, MDBeverly, MA 019151386665321
  26. Jeffrey Held, MDCambridge, MA 021421841243557
  27. Anna Helgason, MD PHDBoston, MA 021141679524144
  28. Howard Heller, MDCambridge, MA 021391508856287
  29. Paul Helmuth, M.D.Springfield, MA 011071609956085
  30. Sevil Hemayat, M.DWorcester, MA 016051063868297
  31. Daniel Henderson, MDBoston, MA 021141831457811
  32. Jeffrey Henderson, DOLudlow, MA 010561649354572
  33. Scott Henderson, M.D.N Dartmouth, MA 027471427037662
  34. Josephine Henderson-Frost, MDBoston, MA 021141205287190
  35. Luis Henkel, M.D.Somerville, MA 021451578787248
  36. Jose Henriquez Ramirez, MDLawrence, MA 018411649901901
  37. Nsa Henshaw, MDDorchester, MA 021221427018605
  38. Kerry Hensley, MDDanvers, MA 019231730440033
  39. Joseph Herald, MDBoston, MA 021141356081095
  40. Marc Herant, M.D.Boston, MA 022151609882208
  41. Michael Herce, M.D, MPHBoston, MA 021151447397807
  42. Robert A Herman, M.D.Wellesley, MA 024811194856039
  43. Talia Herman, M.D.Boston, MA 021091881662369
  44. Timothy Herman, MDBoston, MA 021141396485504
  45. Zachary Hermes, MDBoston, MA 021151700315926
  46. John Hermos, M.D.Boston, MA 021301861508384
  47. Christopher Hernandez, MDBoston, MA 021181801465893
  48. David Hernandez Agudelo, MDSalem, MA 019701164168456
  49. Nancy Hernandez Heyne, M.D.Boston, MA 021141679951354
  50. Maguire Herriman, MDBoston, MA 021151831830074

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.