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Gregory Keith Riffle, D.O.

NPI 1427398429ActiveIndividual· Internal Medicine· Lancaster, OH

Internal Medicine (D.O.) in Lancaster, Ohio, trained at Ohio University, College of Osteopathic Medicine (class of 2013). In 2024 Medicare paid $48,064 for 205 patients, and Part D covered 628 of their prescriptions, 89% of them generic. Inari Medical, Inc. reported $18.99 in payments in 2024, mostly food and beverage.

Overview

NPI1427398429
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedFeb 27, 2013
Last updated in NPPESAug 4, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X34011676OH

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 - Internal Medicine (OH)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients205
Services billed585 across 10 procedure codes
Paid by Medicare$48,064

Part D prescriptions in 2024

Prescriptions (claims)628 · 671 30-day fills
Patients232
Total drug cost$22,044
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolOhio University, College of Osteopathic Medicine
Graduation year2013
Medicare specialtyInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$18.99 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Inari Medical, Inc.$18.991

What the 2024 payments were for

  • Food and Beverage$18.99 · 1 payment

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

Other internal medicine physicians in Lancaster

All 42 internal medicine physicians in Lancaster · All internal medicine physicians in Ohio