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 65 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. Kathleen Koehler, MDVineyard Haven, MA 025681013967140
  2. Asnat Koehne, MDBrockton, MA 023011790760312
  3. Nicholas KoenWorcester, MA 016551962031856
  4. John Koenig, MDBoston, MA 021351245962620
  5. Serena Koenig, M.D.Boston, MA 021201215962543
  6. Kenneth Koenigs, MDSpringfield, MA 011041194808378
  7. Menachem Kohen, MDHaverhill, MA 018301689619371
  8. Eric Kohler, M.D.Franklin, MA 020381720015357
  9. Ulrike Kohler, M.D.Duxbury, MA 023321396723276
  10. Arushi KohliBoston, MA 021111770077356
  11. Alisa Kohn, MDCambridge, MA 021381104896968
  12. Christine Kohn, MD, PHARMDBoston, MA 021141568042075
  13. Estate Kokosadze, MDGreenfield, MA 013011033303383
  14. James Kolb, M.D.Burlington, MA 018051659471688
  15. Tiffany Kolniak, M.D.Framingham, MA 017011780099473
  16. Aleksandra Kolnick, DOBurlington, MA 018051336708213
  17. Jonathan Kolodny, M.D.Norwood, MA 020621649277674
  18. Anthony Komaroff, MDBoston, MA 021151033175898
  19. Cyrus Komer, MDBrookline, MA 024461184602302
  20. R Roger Komer, M.D.Brookline, MA 024461235178237
  21. Devika Kommineni, MDMarlborough, MA 017521801877741
  22. Lakshmi Kona, MDHanscom Afb, MA 017311790749398
  23. Indira Konanur, DOBoston, MA 021091891993994
  24. Jordan KondoBoston, MA 021151922783109
  25. Alexander Kondratiev, M.D.Attleboro, MA 027031841445798
  26. Radhika Koneru, M.D.Worcester, MA 016041902061195
  27. Nathalee Kong, MDBoston, MA 021141699113241
  28. Xue-Jun (june) Kong, M.D.Chelsea, MA 021501679688634
  29. Rebecca Konkle, M.D.Cambridge, MA 021381366411449
  30. Edyta Konrad, M.D.Marlborough, MA 017521578677472
  31. Mridul KontamwarPeabody, MA 019601477743870
  32. Betsy Kontoleon, MDDedham, MA 020261740355197
  33. Jude Koomson, M.D.Somerville, MA 021431700052107
  34. Andrea Kopasz, M.D.South Weymouth, MA 021901770698573
  35. Richard Kopelman, MDBoston, MA 021111023125481
  36. Kate Koplan, M.D.Boston, MA 022151932124633
  37. Alexander Kopp, M.D.Newton Lower Falls, MA 024621750454997
  38. Claudia Koppelman, M.D.Holyoke, MA 010401881741163
  39. Ramya KorapatiNorth Grafton, MA 015361104122506
  40. Vladimir Koren, MDFalmouth, MA 025401124093950
  41. William Kormos, MDBoston, MA 021171366403206
  42. Risa Korn, M.D.Lexington, MA 024201205873403
  43. Robert Korom, MDBoston, MA 021141902168347
  44. Sira Korpaisarn, MDFramingham, MA 017021033524996
  45. Susan Korrick, M.D.Boston, MA 021151740237916
  46. Katia Korte, M.D.Brockton, MA 023021083942270
  47. Anita Koshy, MDMilford, MA 017571033572060
  48. Maria Kosovsky, MDBoston, MA 021141417319666
  49. Harold Kost, M.D.Holliston, MA 017461043369234
  50. Megan Koster, MDBoston, MA 021141891108734

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.