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William Edward Harder, D.O.

NPI 1225417660ActiveIndividual· Internal Medicine, Cardiovascular Disease· Waterford, MI

Internal Medicine, Cardiovascular Disease (D.O.) in Waterford, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $627,980 for 2,540 claims, against $119,938 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 22 companies reporting payments in 2025, $1,461 in all, mostly food and beverage.

Overview

NPI1225417660
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedMay 19, 2015
Last updated in NPPESApr 30, 2026
Certified by providerApr 30, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Cardiovascular Disease Primary207RC0000X5101021792MI
Internal Medicine207R00000X5101021792MI

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) (MI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients687
Services billed2,231 across 57 procedure codes
Paid by Medicare$119,938

Part D prescriptions in 2024

Prescriptions (claims)2,540 · 6,477 30-day fills
Patients350
Total drug cost$627,980
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMichigan State University College of Osteopathic Medicine
Graduation year2015
Medicare specialtyCardiovascular Disease (Cardiology)
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,461 · 60 payments from 22 companies
  • 2024$2,258 · 90 payments from 28 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,461 · 60 payments

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

Other cardiologists in Waterford

All cardiologists in Michigan