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 51 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. Steven Hersch, MDBoston, MA 021141174512149
  2. Shay Hershkovitz, M.D.Worcester, MA 016551780022475
  3. Warren Hershman, M.D., MPHBoston, MA 021181760440960
  4. Ruth Hertzman-Miller, MDSomerville, MA 021431215982962
  5. Matthew Herzig, MDBoston, MA 022151508447111
  6. Shoshana Herzig, M.D.Boston, MA 022151689773897
  7. Susan Herzlinger Botein, MDBoston, MA 022151871691451
  8. Eileen Hession, M.D.Boston, MA 021111376654491
  9. James Hession, MDSpringfield, MA 011071588656193
  10. Paul Hesterberg, MDBoston, MA 021141992788988
  11. Julianne Hetzler, D.O.Fall River, MA 027201477794170
  12. Thomas Heyne, MDBoston, MA 021141265794606
  13. Kathryn Hibbert, M.D.Boston, MA 021141215064662
  14. James Hickey, MDDanvers, MA 019231265488076
  15. John Hickey, MDLenox, MA 012401649217423
  16. Luna Hidaya, M.D.Worcester, MA 016051063809002
  17. Michael Higgins, M.D.Norfolk, MA 020561730251661
  18. Zach Highley-Gergel, MDBoston, MA 021111750083200
  19. Gordon Hildick-SmithBoston, MA 021151346760048
  20. Arnold Hill, M.D.Marlboro, MA 017521932193943
  21. Matthew HillBoston, MA 022151093972184
  22. Rebecca Hill, M.D.Wellesley, MA 024811528037694
  23. Marvah Hill Pierre-Louis, MDBoston, MA 021141023512506
  24. William Hillmann, MDBoston, MA 021141669819892
  25. Mark Hilty, MDFall River, MA 027201609863729
  26. Kathleen Hiltz, MDWeymouth, MA 021901861057275
  27. Jay Himmelstein, M.D.Shrewsbury, MA 015451629279922
  28. Maria Hincapie Marquez, M.D.Worcester, MA 016051982861910
  29. Kevin Hinchey, MDSpringfield, MA 011071740294453
  30. Sherifat Hinchey, M.D.Salem, MA 019701093933509
  31. Charles Hinckley, MDAmherst, MA 010031841238649
  32. Rachel Hindin, MDDorchester, MA 021241134163462
  33. Mona Hinrichsen, M.D.Spencer, MA 015621053465476
  34. Wayne Hioe, MDTurners Falls, MA 013761215907266
  35. Thomas Hirschfeld, MDBurlington, MA 018051194823260
  36. Matthew Hitron, M.D.Boston, MA 022151982868147
  37. Janice Hitzhusen, M.D.Worcester, MA 016051558447151
  38. Karin Hjalmarson, MDChestnut Hill, MA 024671811987225
  39. Catherine Ho, MDBoston, MA 021111114677440
  40. Simon Ho, M.D.Quincy, MA 021691780644534
  41. Brandi Hoag, D.O.Worcester, MA 016051962604157
  42. Thanh Hoang, MDDorchester, MA 021241558050260
  43. Brian Hobbs, MD, MMSCBoston, MA 022151003089152
  44. Eleanor Hobbs, M.D.Somerville, MA 021441912975046
  45. Matthew Hobbs, MDSalem, MA 019701750968889
  46. Carol Hochberg, MDJamaica Plain, MA 021301033134879
  47. James Hocker, MD, PHDBoston, MA 021151740034677
  48. Allen HodgeBoston, MA 021141417659137
  49. Michael Hodges, MDNewton, MA 024581962493536
  50. Joseph Hodgkin, MDBoston, MA 021141447740899

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.