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Joseph C. Ahn, M.D.

NPI 1790162204ActiveIndividual· Internal Medicine, Gastroenterology· Rochester, MN

Internal Medicine, Gastroenterology (M.D.) in Rochester, Minnesota, trained at University of California, San Francisco School of Medicine (class of 2015). Part D covered 56 prescriptions written in 2024, 89% of them generic.

Overview

NPI1790162204
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 4, 2015
Last updated in NPPESAug 5, 2020
Certified by providerAug 5, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X65447MN
Internal Medicine207R00000XA148213CA

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 - Gastroenterology (MN)

Part D prescriptions in 2024

Prescriptions (claims)56 · 103 30-day fills
Patients16
Total drug cost$11,600
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, San Francisco School of Medicine
Graduation year2015
Medicare specialtyGastroenterology

Medical group

Hospital affiliation

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 Internal Medicine, Gastroenterology providers in Rochester

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