NPPES file of Aug 9, 2026

Gastroenterology Physician in Massachusetts

686 NPPES records list gastroenterology physician with a practice address in Massachusetts, 9.8 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 6 of 14.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · 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, 280

  1. Boston280
  2. Worcester50
  3. Burlington31
  4. Springfield18
  5. Cambridge15

Gastroenterology Physician records in Massachusetts

  1. Gail Herzig, MDActon, MA 017201689608440
  2. Mark Hirschkorn, M.D.Chicopee, MA 010201518923713
  3. James Hoffman, MDNorth Dartmouth, MA 027471790752772
  4. Erik Holzwanger, M.D.Boston, MA 021111457747776
  5. Daria Homenko, M.D.Boston, MA 021111891958385
  6. Seth Homer, M.D.Beverly, MA 019151598993735
  7. Francis Horrigan, MDWestfield, MA 010861417923004
  8. Douglas Horst, MDBoston, MA 022151518957224
  9. Jean Marie Houghton, M.D. PHD.Worcester, MA 016551477536399
  10. Anne Hu, MDBoston, MA 021141699337055
  11. Christopher Huang, M.D.Boston, MA 021181205894409
  12. Connie Huang, M.D.Salem, MA 019701578901088
  13. Kevin Huang, MDBoston, MA 021181932603735
  14. Alex Huh, M.D.Brockton, MA 023011689088197
  15. Yasmine Hussein Agha, MDBurlington, MA 018051225524234
  16. Allen Hwang, M.D., M.S.C.E.Boston, MA 021111558532689
  17. Benjamin Hyatt, M.D.Worcester, MA 016551477518678
  18. Douglas Hyde, M.D.Springfield, MA 011041164520169
  19. Ahmer Ibrahim, M.D.Newburyport, MA 019501477557106
  20. Irving Ingraham, MDPeabody, MA 019601073569760
  21. Jennifer Inra, MDBoston, MA 021151467611004
  22. Johanna Iturrino Moreda, M.D.Boston, MA 022151689867053
  23. William Jackson, M.D.Salisbury, MA 019521003843590
  24. Brian Jacobson, MD, MPHBoston, MA 021141255389821
  25. Elise Jacques, MDWorcester, MA 016081619965977
  26. Kunal Jajoo, M.D.Boston, MA 021151336120591
  27. Sushrut Jangi, MDBoston, MA 021111376770115
  28. Douglas Janowski, M.D.Boston, MA 021111700803855
  29. David Jin, MDBoston, MA 021151215220850
  30. Caroline Jouhourian, M.D.Boston, MA 022151538470372
  31. Ann Joyce, MDActon, MA 017201447248042
  32. Pascal Juillerat, MD, MSCBoston, MA 021141124322235
  33. Pavlos Kaimakliotis, MDBurlington, MA 018051437293826
  34. Aarti Kakkar, MDStoneham, MA 021801992971824
  35. David Kalman, M.D.Florence, MA 010621497730675
  36. Elissa Kaplan, M.D.Newton, MA 024621922083542
  37. Gilaad Kaplan, MDBoston, MA 021141922134766
  38. Melanie Kappadakunnel, D.O.North Chelmsford, MA 018631265883615
  39. Raffi Karagozian, MDBoston, MA 021111356394233
  40. Nicholas Karamitsios, MDSalem, MA 019701326049669
  41. Nithin Karanth, M.D.Attleboro, MA 027031154583953
  42. Davood Karimi Hosseini, MDSpringfield, MA 011071972130425
  43. Abhijeet Kashyap, MDActon, MA 017201710299615
  44. Zain Kassam, MD, MPH, FRCPCMedford, MA 021551982011813
  45. John Kauffman, MDChestnut Hill, MA 024671720052038
  46. Gail Kaufman, M.D.Boston, MA 022151922036193
  47. Michael Kelfer, MDAuburn, MA 015011306810296
  48. Thomas Kelleher, M.D.Boston, MA 022151376581678
  49. Ciaran Kelly, M.D.Boston, MA 022151851406813
  50. Colleen Kelly, MDBoston, MA 021151518995992

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia13.1
  2. Massachusetts9.8
  3. Connecticut9.3
  4. New York9.2
  5. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.7% of these records appear in a Medicare file, against 84.4% 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. Massachusetts79.7%
  2. United States84.4%

Gastroenterology Physician records in Massachusetts, measured

  • In a Medicare file547 of 686 · 79.7% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file491 · 71.6% here, 73.7% nationally
  • Not updated in five years or more450 · 65.6% here, 55.6% nationally
  • Median graduation year2004 · the 491 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

686 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Massachusetts: 9.8 per 100,000 residents against 6.2 nationally (50 states and D.C.). Boston has 280 of them (41%).

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. North Carolina681
  2. New Jersey735
  3. Ohio741
  4. Michigan550

States with a similar rate per 100,000

  1. Connecticut9.3
  2. New York9.2
  3. Rhode Island8.8
  4. Maryland8.2

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

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.