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William Bader, M.D.

NPI 1871563411ActiveIndividual· Internal Medicine· Carnegie, PA

Internal Medicine (M.D.) in Carnegie, Pennsylvania, trained at Jefferson Medical College of Thomas Jefferson University (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $798,767 for 7,627 claims, against $56,176 paid for services in 2024. Lilly USA, LLC was the largest of 13 companies reporting payments in 2025, $744.01 in all, mostly food and beverage.

Overview

NPI1871563411
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJan 25, 2006
Last updated in NPPESNov 1, 2023
Certified by providerNov 1, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XMD-018581EPA

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 (PA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients255
Services billed1,216 across 52 procedure codes
Paid by Medicare$56,176

Part D prescriptions in 2024

Prescriptions (claims)7,627 · 16,540 30-day fills
Patients372
Total drug cost$798,767
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolJefferson Medical College of Thomas Jefferson University
Graduation year1975
Medicare specialtyInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$744.01 · 40 payments from 13 companies
  • 2024$965.65 · 54 payments from 14 companies

Top paying companies in 2025

CompanyAmountPayments
Lilly USA, LLC$213.0511
Amgen Inc.$98.256
Novo Nordisk Inc$74.834
Pfizer Inc.$67.854
Exact Sciences Corporation$62.393

What the 2025 payments were for

  • Food and Beverage$699.01 · 39 payments
  • Education$45.00 · 1 payment

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

Other Internal Medicine providers in Carnegie

All Internal Medicine providers in Pennsylvania →