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 46 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. Peter Gross, MDBoston, MA 021141235118217
  2. Zachary Gross, M.D.North Falmouth, MA 025561205369527
  3. Bill Grossman, M.D.Fall River, MA 027211598702797
  4. Kenneth Grossman, MDBoston, MA 021181104847953
  5. Scot Groteguth, MDBurlington, MA 018051033269600
  6. George Groussis, MDWorcester, MA 016061184690992
  7. Douglas Groves, M.D.Worcester, MA 016551871576637
  8. Matthew Growdon, M.D., M.P.H.Boston, MA 021151245611532
  9. Joshua Grubbs, MD, MPHBoston, MA 021181447952130
  10. Sarah Grudberg, MDWest Roxbury, MA 021321407967466
  11. Elaine Grunberg, M.D.Lexington, MA 024211922249218
  12. Jason Grunes, M.D.Braintree, MA 021841619131539
  13. Ann Gryboski, MDSouth Yarmouth, MA 026641053389924
  14. Ruili Gu, M.D.Danvers, MA 019231104858851
  15. Rong Guan, M.D.Boston, MA 021111760439921
  16. Eric Guardino, DOBoston, MA 021151639673346
  17. Eric Guardino, M.D.Lexington, MA 024211497880207
  18. Kenneth Guarnieri, M.D.Webster, MA 015701679547830
  19. Christopher Gudas, MDBrockton, MA 023021710114384
  20. Daniel Guilbert, MDAuburn, MA 015011144201732
  21. Maria Guillen Sacoto, MDNatick, MA 017601588828750
  22. Muhammad Gul, MDEast Longmeadow, MA 010281144438193
  23. Jordan Gularek, D.O.Dartmouth, MA 027471346571098
  24. Theodore Guldemond, M.D.Wilmington, MA 018871598721524
  25. Mary Gulla, M.D.Sutton, MA 015901902869571
  26. Mert Rusen Gulsen, MDCambridge, MA 021381255129649
  27. Lakshman Gunaratnam, M.D.Boston, MA 021151639369770
  28. Atchayaa Gunasekharan, M.D.Springfield, MA 011071407410699
  29. Tharidu GunawardenaBoston, MA 021111952104176
  30. Mehmet Gunduz, MDBoston, MA 021351619710647
  31. Nathaniel Gunn, M.D.Waltham, MA 024511912041963
  32. Orvar Gunnarsson, M.D.Boston, MA 021181225269160
  33. Kristen Gunning, M.D.Boston, MA 021141588639108
  34. Anasuya Gunturi, M.D., PH.D.Boston, MA 022151760619183
  35. Alejandro GuptaNewton, MA 024621548902489
  36. Alicja Gupta, M.D.Quincy, MA 021691295731032
  37. Anupriya Gupta, MBBS, MDStoughton, MA 020721912648700
  38. Apurv Gupta, M.D.Norwood, MA 020621407893605
  39. Dhruva GuptaBoston, MA 021151710781315
  40. Geetika Gupta, MDCambridge, MA 021391477780195
  41. Ish Gupta, D.O.Worcester, MA 016551598747834
  42. Kanav GuptaWorcester, MA 016551174263149
  43. Mita Gupta, M.D.Hyannis, MA 026011750390894
  44. Mukund Gupta, MDLowell, MA 018541912972803
  45. Neil Gupta, MDBoston, MA 021141558561282
  46. Raj Gupta, M.D.Chelmsford, MA 018241346215605
  47. Seema Gupta, M.D.Lowell, MA 018511932232857
  48. Shiva Gupta, MDWoburn, MA 018011437226651
  49. Shruti Gupta, MDBoston, MA 021151619314853
  50. Vishal Gupta, MDBoston, MA 021181275064602

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.