Zymfentra
Payments companies reported to CMS as associated with Zymfentra. "Associated with" is CMS's wording: it links a payment to a product without saying the money was spent on it.
By year
Payments reported as associated with Zymfentra, per program year, as reported to CMS.
Who makes it
Specialties most often involved
Where the associated payments went, by the receiving clinician's specialty.
Clinicians most associated with Zymfentra
These are the largest totals companies reported as associated with Zymfentra. They are typically speaking or consulting arrangements, which companies must report by law; appearing here is not evidence of anything improper.
| Clinician | Location | Specialty | Associated payments (2023-2025) |
|---|---|---|---|
| Shadi Hamdeh | Kansas City, KS | Internal Medicine | $98,370.25 |
| Arthur Kornbluth | New York, NY | Gastroenterology (Internal Medicine) | $67,382.62 |
| Bincy Abraham | Houston, TX | Gastroenterology (Internal Medicine) | $66,845.30 |
| Udayakumar Navaneethan | Saint Petersburg, FL | Gastroenterology (Internal Medicine) | $54,863.03 |
| Stephen Hanauer | Chicago, IL | Gastroenterology (Internal Medicine) | $50,811.22 |
| Douglas Nguyen | Mission Viejo, CA | Gastroenterology (Internal Medicine) | $44,862.18 |
| Jennifer Seminerio-Diehl | Orlando, FL | Gastroenterology (Internal Medicine) | $43,217.65 |
| Zachary Borman | Chevy Chase, MD | Gastroenterology (Internal Medicine) | $38,796.66 |
| Adam Cheifetz | Boston, MA | Gastroenterology (Internal Medicine) | $38,778.28 |
| Brian Hyett | Portsmouth, NH | Internal Medicine | $30,935.81 |
Prescribed Zymfentra?
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.