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John Sparrow Duffy, MD

NPI 1295710358ActiveIndividual· Family Medicine· Canton, NY

Family Medicine (MD) with Carthage Area Hospital Inc and 2 other groups, practicing in Canton, New York. Part D covered 9,676 prescriptions written in 2024, 91% of them generic. Lists Canton-Potsdam Hospital and 4 other hospitals as hospital affiliations.

Overview

NPI1295710358
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 13, 2005
Last updated in NPPESOct 21, 2022
Certified by providerOct 21, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X284577NY

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 - Family Practice (NY)

Part D prescriptions in 2024

Prescriptions (claims)9,676 · 18,306 30-day fills
Patients561
Total drug cost$641,737
Generic share91% of claims

Medicare sources and data years

Education and affiliations

Graduation year2003
Medicare specialtyFamily Practice

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Family Medicine providers in Canton

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