RxDoctor Payments Data

Felice Zwas, MD

Gastroenterology · Greenwich, CTNPI 1225059116

Payments from drug & device makers

$4,438in general payments, 2019–2025

Across 261 payments — averaging $17.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AbbVie$1K
  • Pfizer$787
  • Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$628
  • Johnson & Johnson$367
  • Ferring Pharmaceuticals Inc.$325
  • Takeda Pharmaceuticals U.S.A., Inc.$322
  • plus $895 from 17 others

What the payments were for

  • Food & beverage$4,438100%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

19
20
21
22
23
24
25

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

How this compares

$4,438 in reported general payments places this provider in the 55th percentile of 326 gastroenterology providers in Connecticut.

See all gastroenterology providers in Connecticut

Medicare billing

Part B allowed, 2024
$420,294
Medicare patients
522
Services billed
16,574

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

DrugClaimsCost to plans & patients
StelaraUstekinumab19$452,790
Skyrizi On-BodyRisankizumab-Rzaa11$223,078
ZenpepLipase/Protease/Amylase15$42,263
LinzessLinaclotide21$23,146
Mesalamine30$16,779
Dexlansoprazole DrDexlansoprazole11$7,941
AprisoMesalamine18$7,520
Budesonide EcBudesonide15$6,269
Ursodiol12$5,100
Pantoprazole Sodium317$4,628
Famotidine151$2,911
Mesalamine ErMesalamine15$2,526
Colestipol Hcl14$2,160
CholestyramineCholestyramine (With Sugar)11$983
Omeprazole44$716

Paid to pharmacies, not to this prescriber.

Companies that both paid and supply prescribed drugs

These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.

CompanyPaid to this providerPart D cost of their drugs
Johnson & JohnsonStelara$367$452,79019 claims
Aimmune Therapeutics, Inc.Zenpep$24$42,26315 claims
AbbVieLinzess$1,114$23,14621 claims
Salix Pharmaceuticals, A Division Of Bausch Health US, LLCApriso$628$7,52018 claims

Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 55th percentile of 326 gastroenterology providers in Connecticut.

Other gastroenterology in Greenwich

See the full list for Connecticut

Where these figures come from

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