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John Ramsey Ferguson, MD

NPI 1538804091ActiveIndividual· Internal Medicine· Lawrenceburg, TN

Internal Medicine (MD) in Lawrenceburg, Tennessee, trained at University of Tennessee, Hsc, College of Medicine (class of 2022). Part D covered 323 prescriptions written in 2024, 79% of them generic.

Overview

NPI1538804091
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedApr 29, 2022
Last updated in NPPESAug 18, 2026
Certified by providerAug 18, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X69934TN

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 - Internal Medicine (TN)

Part D prescriptions in 2024

Prescriptions (claims)323 · 633 30-day fills
Patients65
Total drug cost$68,794
Generic share79% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Tennessee, Hsc, College of Medicine
Graduation year2022
Medicare specialtyInternal Medicine

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 Internal Medicine providers in Lawrenceburg

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