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Mark W. Graves, MD

NPI 1285702308ActiveIndividual· Internal Medicine· Springfield, IL

Internal Medicine (MD) in Springfield, Illinois, licensed in IL and IN, with an NPI issued in November 2006. Part D covered 6,591 prescriptions written in 2024, 88% of them generic.

Overview

NPI1285702308
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedNov 30, 2006
Last updated in NPPESDec 10, 2021
Certified by providerDec 10, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X036-145917IL
Internal Medicine207R00000X01043637AIN

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 - Internal Medicine (IL)

Part D prescriptions in 2024

Prescriptions (claims)6,591 · 12,130 30-day fills
Patients459
Total drug cost$515,063
Generic share88% of claims

Medicare sources and data years

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 physicians in Springfield

All 212 internal medicine physicians in Springfield · All internal medicine physicians in Illinois