NPPES file of Aug 9, 2026

Gastroenterology Physician in Connecticut

336 NPPES records list gastroenterology physician with a practice address in Connecticut, 9.3 per 100,000 residents, the 3rd highest rate of 51. New Haven and Farmington have the most; each record links to the provider's NPI and the Connecticut license search. Page 5 of 7.

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).

New Haven has the most, 73

  1. New Haven73
  2. Farmington21
  3. Hamden19
  4. Hartford19
  5. Danbury17

Gastroenterology Physician records in Connecticut

  1. Douglas Miller, M.D.Meriden, CT 064511326062464
  2. Hannah Miller, MDNew Haven, CT 065101407879018
  3. Pramod Mistry, MBBS PHDNew Haven, CT 065191588648851
  4. Shannon MoralesWilton, CT 068971215371208
  5. Brian Moy, D.O.South Windsor, CT 060741144665969
  6. Adel Muhanna, MDWillimantic, CT 062261154986461
  7. Ross Mund, MDNew Haven, CT 065101689930703
  8. Thiruvengadam Muniraj, MD PHD FRCP (LONDON)New Haven, CT 065111033436530
  9. Anil Nagar, MDNew Haven, CT 065101053395814
  10. Michael Nathanson, MDNew Haven, CT 065101437132230
  11. Jeffry Nestler, MDHartford, CT 061061275637886
  12. Jose Niell-Manent, M.D.Stamford, CT 069031235220872
  13. Heather Nisbeth, M.D.Southbury, CT 064881912952243
  14. Basile Njei, MD, PHD, MPHNew Haven, CT 065101336435965
  15. Daniel O'Brien, M.D.Danbury, CT 068101518132505
  16. James O'Brien, MDManchester, CT 060401841275252
  17. Miechelle O'Brien, M.D.Danbury, CT 068101356582571
  18. Ryan O'Connor, M.D.Middletown, CT 064571609052117
  19. Sarah Olivier-Cabrera, MDAnsonia, CT 064011316237936
  20. Stanislaus Opalacz, MDMiddletown, CT 064571215995238
  21. Wayne Panullo, M.D.New Haven, CT 065101679616593
  22. Angelo Paredes, M.D.Middletown, CT 064571235289398
  23. Neil Parikh, M.D.Farmington, CT 060321417199316
  24. Russell Parvin, MDWaterbury, CT 067081669710414
  25. Neal Patel, MDDanbury, CT 068101114216876
  26. Nihal Patel, MDHartford, CT 061061720375090
  27. Jellyana Peraza Gonzalez, MDNew Haven, CT 065101285114686
  28. Carol Petruff, MDAvon, CT 060011083691794
  29. Robert Plansky, MDStamford, CT 069021780635888
  30. Eileen Plotkin, M.D.New Britain, CT 060511346565520
  31. Alexander Potashinsky, MDNew Britain, CT 060511588923502
  32. Deborah Proctor, MDNew Haven, CT 065111982687190
  33. Petr Protiva, MDWest Haven, CT 065161962447409
  34. Hector Pun, MDWaterbury, CT 067081447304944
  35. Jeremy Puthumana, MDNew Haven, CT 065101174152359
  36. Marcy Qureshi, D.O.South Windsor, CT 060741164600615
  37. William Ramsey, M.D.Bristol, CT 060101417098146
  38. Homaira Rasool, DOMiddletown, CT 064571043740293
  39. William Ravich, M.D.New Haven, CT 065101639111842
  40. Anamika Reed, M.D.Hamden, CT 065181588830939
  41. Howard Regenbogen, MDTorrington, CT 067901497748651
  42. Houman Rezaizadeh, M.D.Farmington, CT 060301487896486
  43. Harvey Riback, M.D.Norwalk, CT 068511225148281
  44. Mario Ricci, MDMiddletown, CT 064571124130760
  45. Thomas Rockoff, MDProspect, CT 067121356313944
  46. Suzanne Rose, MDFarmington, CT 060301144258930
  47. Lisa Rossi, M.D.Hartford, CT 061051275653933
  48. Frederick Rozenshteyn, MDStamford, CT 069021609309558
  49. Raquel Rozner, M.D.Stratford, CT 066141396276366
  50. Courtenay Ryan-Fisher, MBBCHTorrington, CT 067901396242657

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

Connecticut ranks 3 of 51 per resident

  1. District of Columbia13.1
  2. Massachusetts9.8
  3. Connecticut9.3
  4. New York9.2
  5. Rhode Island8.8
  6. 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.

85.7% 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. Connecticut85.7%
  2. United States84.4%

Gastroenterology Physician records in Connecticut, measured

  • In a Medicare file288 of 336 · 85.7% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file255 · 75.9% here, 73.7% nationally
  • Not updated in five years or more231 · 68.8% here, 55.6% nationally
  • Median graduation year2001 · the 255 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

336 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Connecticut: 9.3 per 100,000 residents against 6.2 nationally (50 states and D.C.). New Haven has 73 of them (22%).

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. Colorado334
  2. Wisconsin340
  3. South Carolina303
  4. Indiana372

States with a similar rate per 100,000

  1. New York9.2
  2. Massachusetts9.8
  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.