NPPES file of Aug 9, 2026

Gastroenterology Physician in New Hampshire

110 NPPES records list gastroenterology physician with a practice address in New Hampshire, 7.8 per 100,000 residents, the 10th highest rate of 51. Lebanon and Manchester have the most; each record links to the provider's NPI and the New Hampshire license search. Page 2 of 3.

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).

Lebanon has the most, 28

  1. Lebanon28
  2. Manchester18
  3. Concord13
  4. Nashua11
  5. Somersworth8

Gastroenterology Physician records in New Hampshire

  1. Arathi Komarla, M.D.Manchester, NH 031011619935111
  2. Brian Lacy, PH.D; M.DLebanon, NH 037561518980135
  3. Michelle Le, DONashua, NH 030601629456686
  4. Gary Levine, MDLebanon, NH 037561992728471
  5. Lawrence Levy, M.D.Lebanon, NH 037561821181454
  6. Jennifer Lewis, MDSomersworth, NH 038781003075771
  7. Thomas Liu, M.D.Exeter, NH 038331245270255
  8. Burr Loew, MDConcord, NH 033011245312073
  9. Suzannah Luft, MDKeene, NH 034311720499395
  10. Sean Lynch, MDSomersworth, NH 038781326222431
  11. Francis Macmillan, M.D.Manchester, NH 031041205804952
  12. William Maher, M.D.Somersworth, NH 038781477550739
  13. Dalia Mahmoud Hassan Elamin, MDSomersworth, NH 038781235536913
  14. Adnan Malik, M.DLebanon, NH 037561063893733
  15. Mark Mallek, M.D.Nashua, NH 030601609841832
  16. Gregory McCarthy, M.D.Manchester, NH 031041942393525
  17. Leon McLean, MDDerry, NH 030381457495806
  18. John Meadows, M.D.Concord, NH 033011871529644
  19. Trinh Meyer, M.D.Manchester, NH 031041164563268
  20. Howard Mitz, D.O.Littleton, NH 035611558365155
  21. Khushboo Munot, MDPortsmouth, NH 038011487932885
  22. Michael Murphy, MDManchester, NH 031021205808987
  23. Ergen Muso, D.O.Bedford, NH 031101619302056
  24. Srikrishna Nagri, M.DNashua, NH 030631851573570
  25. Scott Oosterveen, MDConcord, NH 033011477506186
  26. Siddhartha Parker, M.D.Lebanon, NH 037561417117532
  27. Melanie Pascal, MDExeter, NH 038331982193587
  28. Soumil Patwardhan, M.D.Portsmouth, NH 038011891101374
  29. Daniel Rath, M.D.Keene, NH 034311083785166
  30. Raja Rehman, M.D.Salem, NH 030791760573182
  31. Bethany Reutemann, MDLebanon, NH 037561285070136
  32. Knut Roalsvig, MDDerry, NH 030381154381614
  33. Douglas Robertson, M.D.Lebanon, NH 037561871500595
  34. Matthew Rockacy, M.D.Keene, NH 034311578758124
  35. Richard Rothstein, MDLebanon, NH 037561487678314
  36. Johann Rothwangl, M.DManchester, NH 031041346216736
  37. David Sack, MDManchester, NH 031041710986898
  38. Harbir Sawhney, M.D.Salem, NH 030791215992607
  39. Timothy Scherer, M.D.Manchester, NH 031041437172228
  40. Thomas Sherman, MDExeter, NH 038331639174451
  41. Lawton Shick, M.D.Manchester, NH 031041821071747
  42. Corey Siegel, M.D.Lebanon, NH 037561699798322
  43. Mark Silversmith, M.D.Bedford, NH 031101104825587
  44. Samrath Singh, M.D.Concord, NH 033011750642807
  45. Frederick Spin, M.D.Keene, NH 034311487687224
  46. Shelby Sullivan, MDLebanon, NH 037561851503999
  47. Umer SyedNashua, NH 030601851734834
  48. Hannah Systrom, MDLebanon, NH 037561295394401
  49. Steven Taylor, MDDerry, NH 030381134106990
  50. Robert Thomson, MDConcord, NH 033011780610550

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

New Hampshire ranks 10 of 51 per resident

  1. Pennsylvania8.1
  2. Minnesota8.0
  3. New Jersey7.9
  4. New Hampshire7.8
  5. Illinois7.1
  6. Washington6.8
  7. 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.

82.7% 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. New Hampshire82.7%
  2. United States84.4%

Gastroenterology Physician records in New Hampshire, measured

  • In a Medicare file91 of 110 · 82.7% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file80 · 72.7% here, 73.7% nationally
  • Not updated in five years or more66 · 60.0% here, 55.6% nationally
  • Median graduation year2002 · the 80 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

110 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in New Hampshire: 7.8 per 100,000 residents against 6.2 nationally (50 states and D.C.). Lebanon has 28 of them (25%).

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. Kansas111
  2. Arkansas119
  3. Nevada119
  4. Iowa122

States with a similar rate per 100,000

  1. New Jersey7.9
  2. Minnesota8.0
  3. Pennsylvania8.1
  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.