Surgeon profile

Felice Zwas, M.D.

Gastroenterology · Greenwich, CT 06830NPI 1225059116

Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources

Contactverified live in NPPES · Jul 9, 2026

Active NPI500 W PUTNAM AVE, GREENWICH, CT 06830☎ 203-863-2900

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Operates atCMS affiliations, refreshed monthly

GREENWICH HOSPITAL ASSOCIATION - · GREENWICH, CT

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Eight device-heavy specialties tracked — more coming.

350 Medicare cases/yr

343 patients

3 procedures

Procedure	Cases	Trend	Patients
Colonoscopy with Biopsy CPT 45380	181	▲ +18%	180
Upper GI Endoscopy (EGD) with Biopsy CPT 43239	131	≈ flat	125
Colonoscopy with Polypectomy (Snare) CPT 45385	38	≈ flat	38

CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.

$404 total received, 2025

24 payments

4 manufacturer relationships on file

See exactly which companies pay this surgeon — and how much — with a paid plan.

7-year payment trajectory (who's warming up, who's cooling off on this surgeon) is a paid feature. Unlock

Pulling CY2025 industry payments + 7-year history…