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 69 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. Gilbert Lavoie, M.D.Falmouth, MA 025401841326436
  2. Shing Law, M.D.Dorchester, MA 021241689014375
  3. Juliana Lawrence, MDBoston, MA 021151467039057
  4. Sheila Lawrence, M.D.Quincy, MA 021691619902772
  5. Stephanie Lawrence, M.D.Swansea, MA 027771548581283
  6. Marivyl Laxer, M.D.Westport, MA 027901225093362
  7. Antonio Lazzari, MDBoston, MA 021301295784098
  8. Alexander Lazzaro, M.DBoston, MA 021181467101923
  9. Cam Dung Le, MDWorcester, MA 016051841752672
  10. Dat Le, MD EFFECTIVE 6/1/12Lawrence, MA 018411407116106
  11. Hien Le, MDBoston, MA 021141043668627
  12. Kevin LeBoston, MA 021111043159965
  13. Lien Le, M.D.Newton, MA 024621295939197
  14. Minh-Phuong LeBoston, MA 021141902224280
  15. Mylinh LeBoston, MA 021111568256253
  16. Phuoc Le, MDBoston, MA 021141811018245
  17. Robert Le, MDWorcester, MA 016051427518950
  18. Thuy Le, MDBeverly, MA 019151043262371
  19. Trang Le, M.D.Quincy, MA 021691427047828
  20. Andrew LeaBoston, MA 021151386281830
  21. Theresa Leak-Gonzalez, MDNewburyport, MA 019501679587265
  22. Danielle Leary, D.O.Worcester, MA 016551225441918
  23. Brett Leav, M.D.Newton, MA 024601093808792
  24. Giovanna Leddy, MDBoston, MA 022151295992600
  25. Philip Lederer, M.D.Boston, MA 021141194988071
  26. Hannah Lederhausen, MDBoston, MA 022151720642531
  27. Harvey Lederman, MDGreenfield, MA 013011033124458
  28. Alfred Lee, M.D.Boston, MA 021181952444358
  29. Alice Lee, MDLexington, MA 024211841672300
  30. Amanda Lee, MDBoston, MA 021241083354120
  31. Annie Lee, M.D.Boston, MA 021141679709182
  32. Anthony Lee, MDCambridge, MA 021411972557270
  33. B. Minsuk Lee, MDBrockton, MA 023011518222751
  34. Betty Lee, M.D.Hingham, MA 020431982641577
  35. Chia Lee, M.D.,Boston, MA 021111912210121
  36. Daniel Lee, MDDedham, MA 020261023015609
  37. Danru Lee, M.D.Sharon, MA 020671700813557
  38. Elizabeth Lee, MDBoston, MA 022151144648478
  39. Frederick LeeBoston, MA 021161295710473
  40. Gabrielle LeeBoston, MA 021151821627258
  41. Gail Lee, M.D.Boston, MA 021111003840836
  42. Gin Yi Lee, M.D.Boston, MA 021151215590971
  43. Grace Lee, MDBoston, MA 021181073215463
  44. Herman Lee, M.D.Boston, MA 021301952352338
  45. Ivy Lee, M.D.Malden, MA 021481578959292
  46. Jaewon Lee, MDBoston, MA 021141063115178
  47. Jeffrey Lee, M.D.Spencer, MA 015621922080738
  48. Jennifer Lee, MDChestnut Hill, MA 024671538126834
  49. Jeong Lee, M.D.Boston, MA 021181942287750
  50. Ji Yoon LeeFramingham, MA 017021871341818

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.