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Compare the published Medicare service mix of Alexia T Koudellou, MD with clinicians in the same registry specialty: Gastroenterology (CMS).

CT · Exact areaEdit location

2024 published service data · 230 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ali Hemacha, MD

Gastroenterology (CMS) · Vernon, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
77%Service-mix similarityView profile →

Marcy Lynn Qureshi, D.O.

Gastroenterology · Internal Medicine (CMS) · South Windsor, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
73%Service-mix similarityView profile →

Haleh Vaziri, MD

Gastroenterology · Internal Medicine (CMS) · Farmington, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
73%Service-mix similarityView profile →

Donna M Cipolla, MD

Gastroenterology (CMS) · Glastonbury, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
70%Service-mix similarityView profile →

David Barenberg, M.D.

Gastroenterology · Internal Medicine (CMS) · Danbury, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
66%Service-mix similarityView profile →

Houman Rezaizadeh, M.D.

Gastroenterology (CMS) · Farmington, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
66%Service-mix similarityView profile →

Ajay Pal Singh, M.D.

Gastroenterology (CMS) · Norwalk, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
66%Service-mix similarityView profile →

Ajit J Kokkat, M.D.

Gastroenterology · Geriatric Medicine (CMS) · Willimantic, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
65%Service-mix similarityView profile →

Daniel Patrick O'brien, M.D.

Gastroenterology · Internal Medicine (CMS) · Danbury, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
65%Service-mix similarityView profile →

Joseph Fiorito, M.D.

Gastroenterology (CMS) · Danbury, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
65%Service-mix similarityView profile →

Mae K Tighe, M.D.

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
65%Service-mix similarityView profile →

Eugene Sapozhnikov, M.D.

Gastroenterology (CMS) · New London, CT

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
65%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.