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Michael J. Larkin, D.O.

NPI 1639147788ActiveIndividual· Internal Medicine, Cardiovascular Disease· Altoona, PA

Internal Medicine, Cardiovascular Disease (D.O.) in Altoona, Pennsylvania, trained at Philadelphia College of Osteopathic Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,666,252 for 7,645 claims, against $566,695 paid for services in 2024. Abbott Laboratories was the largest of 10 companies reporting payments in 2025, $862.55 in all, mostly food and beverage.

Overview

NPI1639147788
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorNo
NPI issuedMar 14, 2006
Last updated in NPPESDec 22, 2022
Certified by providerDec 22, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Cardiovascular Disease Primary207RC0000XOS006874LPA

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 - Cardiovascular Disease (Cardiology) (PA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,845
Services billed9,593 across 57 procedure codes
Paid by Medicare$566,695

Part D prescriptions in 2024

Prescriptions (claims)7,645 · 16,630 30-day fills
Patients1,025
Total drug cost$1,666,252
Generic share75% of claims

Medicare sources and data years

Education and affiliations

Medical schoolPhiladelphia College of Osteopathic Medicine
Graduation year1988
Medicare specialtyCardiovascular Disease (Cardiology)
Secondary specialtiesInternal Medicine

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$862.55 · 25 payments from 10 companies
  • 2024$1,026 · 27 payments from 12 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$862.55 · 25 payments

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

Other cardiologists in Altoona

All 18 cardiologists in Altoona · All cardiologists in Pennsylvania