Felice Zwas is a Gastroenterology physician affiliated with Greenwich Hospital. OpenAlex indexes 25 publications with 947 citations (h-index 12).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Medicare prescribing footprint (2023)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Metabolism & gastrointestinal
91.3%Proton pump inhibitor47.3%Pantoprazole Sodium84%Omeprazole13%Esomeprazole Magnesium3%Part D<11 patientsH2 blocker20.5%Famotidine100%Part D≥53 patients+ 5 more classes in this area
Cancer & immunology
5.2%Interleukin-12 Antagonist2.4%Stelara100%Part D<11 patientsNucleoside Metabolic Inhibitor1.5%Mercaptopurine100%Part D<11 patients+ 1 more class in this area
Respiratory
2.4%Corticosteroid2.4%Budesonide Ec100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Topical Treatment of Refractory Esophageal Crohn’s Disease With Stricture Using Budenoside Capsules
The American Journal of Gastroenterology
2014 - Multilayered Epithelium May Be Found in Patients With Barrett’s Epithelium and Dysplasia or Adenocarcinoma
Digestive Diseases and Sciences
2006 - A NEW THERAPEUTIC MODALITY FOR SYMPTOMATIC SCHATZKI RINGS
The American Journal of Gastroenterology
2004 - Prospective evaluation of multilayered epithelium in Barrett's esophagus
The American Journal of Gastroenterology
2001
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”