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Claude Winchester Hamilton, M.D.

NPI 1518074087ActiveIndividual· Internal Medicine· Park Ridge, IL

Internal Medicine (M.D.) in Park Ridge, Illinois, trained at Creighton University School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $334,608 for 3,617 claims, against $155,228 paid for services in 2024.

Overview

NPI1518074087
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 23, 2006
Last updated in NPPESMay 9, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X036081593IL

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 - Neurology (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients344
Services billed2,027 across 10 procedure codes
Paid by Medicare$155,228

Part D prescriptions in 2024

Prescriptions (claims)3,617 · 6,210 30-day fills
Patients260
Total drug cost$334,608
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolCreighton University School of Medicine
Graduation year1980
Medicare specialtyNeurology
Secondary specialtiesInternal Medicine

Medical groups

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 Park Ridge

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