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Robert F. Manges, MD

NPI 1508835174ActiveIndividual· Internal Medicine, Hematology & Oncology· Fort Wayne, IN

Internal Medicine, Hematology & Oncology (MD) in Fort Wayne, Indiana, trained at Indiana University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $14,289,031 for 9,761 claims, against $61,967 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 18 companies reporting payments in 2025, $1,890 in all, mostly food and beverage.

Overview

NPI1508835174
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMar 16, 2006
Last updated in NPPESOct 20, 2022
Certified by providerOct 20, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X01037708AIN

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 - Medical Oncology (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients371
Services billed1,008 across 13 procedure codes
Paid by Medicare$61,967

Part D prescriptions in 2024

Prescriptions (claims)9,761 · 22,100 30-day fills
Patients2,421
Total drug cost$14,289,031
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year1988
Medicare specialtyMedical Oncology
Secondary specialtiesHematology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,890 · 49 payments from 18 companies
  • 2024$2,733 · 60 payments from 25 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,890 · 49 payments

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

Other hematologist-oncologists in Fort Wayne

All 30 hematologist-oncologists in Fort Wayne · All hematologist-oncologists in Indiana