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 4 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. Joanne Donovan, M.D.Boston, MA 021301942393459
  2. Michael Dougan, MD, PHDBoston, MA 021141225322258
  3. Jonathan Downie, MD, PHDBoston, MA 021141306305503
  4. Richard Doyle, M.D.Boston, MA 022151407908593
  5. Stephen Drewniak, MDBoston, MA 021301609812486
  6. Anwar Dudekula, MDWorcester, MA 016551922145200
  7. Katie Dunleavy, MB BCH BAOBoston, MA 021141083118343
  8. Thomas Dunzendorfer, M.D.Pittsfield, MA 012011194786210
  9. Nha Duong, DOSpringfield, MA 011071336594514
  10. Lauren Eichenwald, MDBoston, MA 021141659900462
  11. Richard Einhorn, MDBeverly, MA 019151639104896
  12. Maysaa El Zoghbi, M.D.Plymouth, MA 023601043528250
  13. Sami Elamin, M.D.Boston, MA 021141932549987
  14. Harry Elvanides, MDWorcester, MA 016051164526869
  15. Arthur Esswein, M.D.Plymouth, MA 023601700850716
  16. Bonnie Ewald, M.D.Burlington, MA 018051346535440
  17. Stephen Fabry, M.D.Burlington, MA 018051891893178
  18. Kenneth Falchuk, M.D.Boston, MA 022151639154305
  19. Zalman Falchuk, MDBoston, MA 022151912996000
  20. Paul Farkas, M.D.Springfield, MA 011041932149911
  21. Ronan Farrell, MDDartmouth, MA 027471821470675
  22. Kristen Farwell, M.D.Burlington, MA 018051629222336
  23. Karim FawazCambridge, MA 021391952338253
  24. Thomas Fazio, M.D.Lawrence, MA 018431902800832
  25. David Fefferman, M.D.Stoneham, MA 021801720015928
  26. Elliot Feinberg, M.D.Leominster, MA 014531962442491
  27. Lauren Feld, M.D.Worcester, MA 016551780065557
  28. Samson Ferm, MDCambridge, MA 021381255785713
  29. Michael Feuer, MDHyannis, MA 026011518910777
  30. Joseph Feuerstein, M.D.Boston, MA 022151962676619
  31. Gale Fiarman, MDMedford, MA 021551831292838
  32. Steven Fine, M.D.Framingham, MA 017021164498457
  33. Dmitry Finkelberg, M.D.Worcester, MA 016551134326218
  34. Mark Finklestein, M.D.Brockton, MA 023021831114149
  35. Barry Finn, MDBrockton, MA 023011083680375
  36. Joseph Fiore, M.D.Norwell, MA 020611659587699
  37. Ariel Fischer, MDBoston, MA 021111518594027
  38. Ryan Flanagan, MDBoston, MA 021151306374178
  39. Sarah Flier, M.D.Boston, MA 022151902939119
  40. Mary Flynn, M.D.Worcester, MA 016551992094221
  41. Sharyle Fowler, M.D.Boston, MA 021141508171109
  42. Elena Fradkov, M.D.Cambridge, MA 021381326438953
  43. Kristen Francione, RN BSNStoneham, MA 021801497537443
  44. Derek Frederickson, MDNorwood, MA 020621518184514
  45. Steven Freedman, M.D.Boston, MA 022151952335796
  46. Andrea Fribush, M.D.Concord, MA 017421336107309
  47. Daniel Friedlander, M. D.Boston, MA 022151518985670
  48. Lawrence Friedman, MDNewton, MA 024621750369112
  49. Sonia Friedman, MDBoston, MA 021151841257169
  50. Michael FuchsBoston, MA 021151104402841

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.