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David Fenton, MD

NPI 1669577540ActiveIndividual· Internal Medicine, Geriatric Medicine· Hartford, CT

Internal Medicine, Geriatric Medicine (MD) in Hartford, Connecticut, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $864,142 for 11,352 claims, against $111,604 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 2 companies reporting payments in 2025, $41.32 in all, mostly food and beverage.

Overview

NPI1669577540
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedSep 14, 2006
Last updated in NPPESNov 15, 2022
Certified by providerNov 15, 2022

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Geriatric Medicine (CT)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients274
Services billed1,421 across 4 procedure codes
Paid by Medicare$111,604

Part D prescriptions in 2024

Prescriptions (claims)11,352 · 11,369 30-day fills
Patients346
Total drug cost$864,142
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoyola University of Chicago, Stritch School of Medicine
Graduation year2000
Medicare specialtyGeriatric Medicine

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$41.32 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Neurocrine Biosciences, Inc.$21.971
Pfizer Inc.$19.351

What the 2025 payments were for

  • Food and Beverage$41.32 · 2 payments

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

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