NPPES file of Aug 9, 2026

Emergency Medicine Physician in Massachusetts

1,829 NPPES records list emergency medicine physician with a practice address in Massachusetts, 26 per 100,000 residents, the 9th highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 14 of 37.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207P00000X · 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, 543

  1. Boston543
  2. Worcester216
  3. Springfield123
  4. Brockton74
  5. Burlington48

Emergency Medicine Physician records in Massachusetts

  1. Pamela Guggina, M.D.East Boston, MA 021281528006848
  2. Joshua Guindon, M.D.Salem, MA 019701336591072
  3. George GuoBoston, MA 022151306339486
  4. Neel Gupta, MDWorcester, MA 016551699415018
  5. Neil HadfieldBoston, MA 021181679897318
  6. Thomas Hagamen, MDGreenfield, MA 013011003985813
  7. Brian Hagan, M.D.Pittsfield, MA 012011295978922
  8. Laura HagopianLowell, MA 018541689998338
  9. Yusef Haj-Darwish, MDEast Walpole, MA 020321376597427
  10. Peter HakimSpringfield, MA 011991144510066
  11. John Halamka, M.D.Roxbury Crossing, MA 021201497860456
  12. Matthew Hall, M.D.Boston, MA 022151962764522
  13. Michael Hall, MDWorcester, MA 016551194286617
  14. Michael Hall, MDHyannis, MA 026011881650521
  15. Robert Hall, M.D.Beverly, MA 019151447323688
  16. Stephen HalliseyBoston, MA 021151295120251
  17. Michael Halperin, M.D., M.P.H.Boston, MA 021141699119602
  18. Leslie Halpern, M.D.Lowell, MA 018541992061253
  19. Pauline Halsey, M.D.West Roxbury, MA 021321912195678
  20. John Hanrahan, M.DWest Roxbury, MA 021321265580575
  21. David Hansen, D.O.Westfield, MA 010851235578642
  22. Donald Hansen, M.D.Weymouth, MA 021881760441422
  23. Robert Hansen, M.D.Millbury, MA 015271003882192
  24. John Haran, MDWorcester, MA 016551881896124
  25. Tyler Harder, MDBoston, MA 022151508553165
  26. John Hardin, M.D.Boston, MA 022151609161959
  27. Jonathan Harding, MDBoston, MA 021151932639416
  28. William Harding, M.D.New Bedford, MA 027401235181082
  29. David Hark, M.D.Newton, MA 024621194119669
  30. Sarah Harkness, M.D.New Bedford, MA 027401508184821
  31. Michelle Harris, M.D.Lawrence, MA 018411831175520
  32. Norman Harris, MDBoston, MA 021141245205822
  33. Owen Harris, MDBoston, MA 021151265842371
  34. Corey Harrison, MDWorcester, MA 016551164511648
  35. Alexander Hart, M.D.Worcester, MA 016551033537055
  36. Stephen Hartlaub, M.D.Weymouth, MA 021901700827953
  37. Deborah Hartley, MDNew Bedford, MA 027401558336388
  38. Margot Hartmann, MD, PHDNantucket, MA 025541871556175
  39. Justin Harvey, M.D.Worcester, MA 016551609238757
  40. Frederick Harwick, DOPalmer, MA 010691366459109
  41. Kohei Hasegawa, M.D.Boston, MA 021141760654438
  42. Christopher Hashikawa, M.D.Nantucket, MA 025541770688160
  43. Elana Hayasaka, M.D.Boston, MA 021181841721503
  44. Emily Hayden, M.D.Boston, MA 021141912932971
  45. Kristen HaydenHyannis, MA 026011568043339
  46. Ronald Hayden, M.D.Pittsfield, MA 012011447267612
  47. Hamilton Hayes, M.D.Beverly, MA 019151598807950
  48. Kristen Hayes, M.D.Lawrence, MA 018411790760429
  49. Shuhan He, M.D.Boston, MA 021151578957551
  50. Marc Hedlund, MDBoston, MA 022151770155996

Source: CMS NPPES, primary taxonomy 207P00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 9 of 51 per resident

  1. Pennsylvania30
  2. West Virginia28
  3. Illinois26
  4. Massachusetts26
  5. Hawaii26
  6. New York26
  7. 50 states and D.C.21

Source: CMS NPPES, primary taxonomy 207P00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.8% of these records appear in a Medicare file, against 81.5% 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. Massachusetts81.8%
  2. United States81.5%

Emergency Medicine Physician records in Massachusetts, measured

  • In a Medicare file1,497 of 1,829 · 81.8% here, 81.5% nationally
  • In the CMS Doctors and Clinicians file1,202 · 65.7% here, 58.7% nationally
  • Not updated in five years or more1,041 · 56.9% here, 54.8% nationally
  • Median graduation year2011 · the 1,200 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207P00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,829 NPPES records list emergency medicine physician (207P00000X) as their primary taxonomy with a practice address in Massachusetts: 26 per 100,000 residents against 21 nationally (50 states and D.C.). Boston has 543 of them (30%).

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. New Jersey1,754
  2. Virginia1,715
  3. Georgia1,685
  4. North Carolina2,094

States with a similar rate per 100,000

  1. Illinois26.2
  2. Hawaii25.8
  3. New York25.7
  4. Oregon25.5

The largest states

  1. California7,751
  2. New York5,025
  3. Texas4,885
  4. Florida4,034
  5. Pennsylvania3,911

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.