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Douglas W. Lillie, MD

NPI 1811004369ActiveIndividual· Internal Medicine· West Allis, WI

Internal Medicine (MD) in West Allis, Wisconsin, licensed in WI, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $1,552,966 for 17,292 claims, against $107,157 paid for services in 2024. Lists Aurora St Lukes Medical Center and 1 other hospital as hospital affiliations.

Overview

NPI1811004369
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 23, 2006
Last updated in NPPESJun 5, 2025
Certified by providerJun 5, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X30235WI

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 (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients353
Services billed1,505 across 37 procedure codes
Paid by Medicare$107,157

Part D prescriptions in 2024

Prescriptions (claims)17,292 · 38,401 30-day fills
Patients1,016
Total drug cost$1,552,966
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Graduation year1985
Medicare specialtyInternal Medicine

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 West Allis

All Internal Medicine providers in Wisconsin →