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 38 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. Lydia Flier, M.D.Cambridge, MA 021381104273911
  2. Steven Flier, M.D.Wellesley, MA 024811013905751
  3. Loring Flint, MDSpringfield, MA 011991255426532
  4. Richard Florentine, MDMilton, MA 021861609826676
  5. Adriana Flores, MDBurlington, MA 018051952981292
  6. Carlos Flores, MDSpringfield, MA 011071699881912
  7. Mario Flores, MDSouthborough, MA 017721437103439
  8. Jose Flores Cardillo, MDMarlborough, MA 017521295796423
  9. Christopher Flory, M.D.Williamsburg, MA 010961932148467
  10. Kathleen Flynn, M.D.Hyannis, MA 026011487692778
  11. Lucy FlynnChestnut Hill, MA 024671518457977
  12. Jonathan FogelBoston, MA 022151598227878
  13. Amy Fogelman, MDBoston, MA 021141215909882
  14. Annemarie Fogerty, MDBoston, MA 021141588605943
  15. Jane Fogg, M.D.Norwood, MA 020621710067509
  16. Judith Fokum, MDSalem, MA 019701659352813
  17. Damian FolchChelmsford, MA 018241225002066
  18. Yan Hang Fong, MBBSBoston, MA 021141164074597
  19. Nicolette Fontaine, MDBoston, MA 021141841287174
  20. Rucci Marcus Foo, MDBoston, MA 022151922621945
  21. Stephanie FooBrockton, MA 023011427211986
  22. Colleen Ford, M.D.Chelsea, MA 021501821317959
  23. Deborah Ford, M.D.Auburn, MA 015011407940562
  24. Kelly Ford, M.D.Boston, MA 022151639116833
  25. Leigh Ford, MDPalmer, MA 010691679547616
  26. William Ford, MDBoston, MA 021151346980364
  27. Jonathan Forman, MDDedham, MA 020261386641785
  28. Samuel Forman, M.D.Brookline, MA 024451588753149
  29. Amy Forrer, M.D.Revere, MA 021511760416424
  30. B. Forrow, M.D.Boston, MA 022151518048511
  31. Richard Forster, M.D.Worcester, MA 016551336122191
  32. Blair Fosburgh, MDBoston, MA 021141508857780
  33. Gabriel Foster, M.D.Boston, MA 022151336552181
  34. John Foster, MDBoston, MA 021131194716753
  35. Simmie Foster, MD, PHDBoston, MA 021141407177645
  36. Angela Fowler-Brown, M.D.Boston, MA 022151225130644
  37. William Fox, MDSandwich, MA 025631881651560
  38. Donald Foxworthy, MDBoston, MA 022151558336289
  39. Polly Fraga, MDBurlington, MA 018031265674543
  40. Laura Frain, M.D.Boston, MA 021151558393082
  41. Andres Franceschi Coll, MDFramingham, MA 017021770338501
  42. Mark Franciosa, M.D.Boston, MA 021181336315647
  43. Amy Francis, DOPeabody, MA 019601699984625
  44. Louise Francois, MD, MPHBoston, MA 022151851528178
  45. Cassie Frank, M.D., M.P.H.Cambridge, MA 021411407054984
  46. Erica Frank, M.D. M.P.H.Dedham, MA 020261487682944
  47. Markus Frank, M.D.Boston, MA 021151982664538
  48. Natasha Frank, MDBoston, MA 021151497722201
  49. Susan Frankl, M.D.Chestnut Hill, MA 024671467564138
  50. Marcia Franklin, MDBourne, MA 025321649227588

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.