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Wallace Duncan, M.D.

NPI 1821153529ActiveIndividual· Internal Medicine· Lithonia, GA

Internal Medicine (M.D.) in Lithonia, Georgia, trained at Morehouse School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $790,245 for 10,066 claims, against $29,318 paid for services in 2024.

Overview

NPI1821153529
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedDec 25, 2006
Last updated in NPPESOct 17, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X041109GA

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 (GA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients87
Services billed535 across 21 procedure codes
Paid by Medicare$29,318

Part D prescriptions in 2024

Prescriptions (claims)10,066 · 21,346 30-day fills
Patients555
Total drug cost$790,245
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMorehouse School of Medicine
Graduation year1992
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

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 Lithonia

All Internal Medicine providers in Georgia →