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 34 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. Julie Elgas, MDWellesley, MA 024811679681498
  2. Mohamed Elgeziry, MDBraintree, MA 021841477512929
  3. Susan Elias, M.D.Peabody, MA 019601184634834
  4. Habib Eljanini, MDFall River, MA 027211235328071
  5. Ashraf Elkerm, MDLeominster, MA 014531306825831
  6. Ibrahim ElkhawasBoston, MA 021241740858380
  7. Roula Elkhoury, M.D.Westfield, MA 010851366640005
  8. Hatem Ellaithy, MDBoston, MA 021141700464062
  9. Dale Ellenberg, M.D.Brockton, MA 023021861429805
  10. Patrick Elliott, M.D.,Boston, MA 021151376863241
  11. Leonard Ellman, MDBoston, MA 021141679564322
  12. Andrew Ellner, M.D.Boston, MA 021151013085661
  13. A. Gray Ellrodt, M.D.Pittsfield, MA 012011083764021
  14. Shereef Elnahal, M.D., M.B.A.Boston, MA 021151407117278
  15. Ahmed Elsabbagh, MDDorchester, MA 021241306459128
  16. Peter Elsea, MDNorthampton, MA 010601699731182
  17. Abdulfatah Elshaar, M.D.Norwood, MA 020621821045550
  18. Ahmed Eltanbedawi, MDSpringfield, MA 011991609379775
  19. David Elvin, M.D.Cambridge, MA 021391245250661
  20. Sara Emami, M.D.Boston, MA 021141801101027
  21. Marc Emmerich, M.D.Boston, MA 021181033292636
  22. Matthew Emmett, MD, PHDBoston, MA 021141730648064
  23. Kari Emsbo, M.D.Newton, MA 024591396841615
  24. Raul Endriga, M.D.Worcester, MA 016091467633016
  25. Allan Engel, M.D.Newton Lower Falls, MA 024621104813443
  26. Stacy Engel, M.D.Boston, MA 021141649364738
  27. Jeffrey Engelman, MD PHDBoston, MA 021141538159108
  28. Judson Englert, M.D., PH.D.Boston, MA 021151437443405
  29. Kayla Engstrom, MDSalem, MA 019701891324885
  30. Baigalmaa EnkhtaivanPlymouth, MA 023601043637176
  31. Jeanne Enneguess, D.O.Peabody, MA 019601912965369
  32. Celeste Enriquez, M.D.Chicopee, MA 010201679507339
  33. Andrea Enzinger, M.D.Boston, MA 022151669639258
  34. Andrew Epstein, M.D.Newton, MA 024601417090804
  35. Arnold Epstein, MDBoston, MA 021151205893518
  36. David Epstein, M.D.Somerville, MA 021451396753067
  37. Kevin Epstein, MDIndian Orchard, MA 011511265443816
  38. Rachel Epstein, M.D.Boston, MA 021181265660351
  39. Andres Eras, MDBrighton, MA 021351336710052
  40. Emily Erb, MDWest Roxbury, MA 021321457974248
  41. Stephen Erban, M.D.Worcester, MA 016551538142393
  42. Federico Erebia, M.D.Boston, MA 021161588639744
  43. Anita Erler, M.D.Peabody, MA 019601033166293
  44. Daniel Erler, MD MPHLexington, MA 024211598716862
  45. Matthew Erlich, M.D.Boston, MA 021151063869758
  46. Vitaly Ermolin, MDWeymouth, MA 021901114901485
  47. Oseiwe Eromosele, M.D.Boston, MA 021181467036475
  48. Alistair Erskine, MDBoston, MA 021151235108069
  49. Nada Esa, MDLenox, MA 012401558713065
  50. Lynn Eshleman, MDCambridge, MA 021381356398119

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.