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John Ryan Gedney, MD

NPI 1770109761ActiveIndividual· Surgery, Vascular Surgery· Darien, CT

Surgery, Vascular Surgery (MD) in Darien, Connecticut, trained at Medical University of South Carolina College of Medicine (class of 2020). Part D covered 49 prescriptions written in 2024, 98% of them generic. Penumbra, Inc. was the largest of 7 companies reporting payments in 2025, $5,042 in all, mostly food and beverage.

Overview

NPI1770109761
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 25, 2020
Last updated in NPPESJun 25, 2026
Certified by providerJun 25, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Surgery, Vascular Surgery Primary2086S0129X85372CT
Surgery, Vascular Surgery2086S0129XLL84642SC

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Vascular Surgery (CT)

Part D prescriptions in 2024

Prescriptions (claims)49 · 85 30-day fills
Patients20
Total drug cost$993.81
Generic share98% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMedical University of South Carolina College of Medicine
Graduation year2020
Medicare specialtyVascular Surgery

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$5,042 · 26 payments from 7 companies
  • 2024$302.69 · 8 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Penumbra, Inc.$2,4344
Medtronic, Inc.$1,5402
W. L. Gore & Associates, Inc.$378.396
Surmodics, Inc.$261.022
Cook Medical LLC$246.2410

What the 2025 payments were for

  • Food and Beverage$1,787 · 23 payments
  • Travel and Lodging$1,755 · 2 payments
  • Grant$1,500 · 1 payment

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Surgery, Vascular Surgery providers in Darien

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