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Ryan D. Gentzler, M.D.

NPI 1235390444ActiveIndividual· Internal Medicine, Medical Oncology· Charlottesville, VA

Internal Medicine, Medical Oncology (M.D.) in Charlottesville, Virginia, trained at Temple University School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $1,419,105 for 405 claims, against $61,920 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $9,946 in all, mostly consulting fees.

Overview

NPI1235390444
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 19, 2008
Last updated in NPPESSep 19, 2026
Certified by providerSep 19, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Medical Oncology Primary207RX0202X0101256284VA
Internal Medicine207R00000XMT193201PA

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 - Medical Oncology (VA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients216
Services billed1,093 across 17 procedure codes
Paid by Medicare$61,920

Part D prescriptions in 2024

Prescriptions (claims)405 · 503 30-day fills
Patients91
Total drug cost$1,419,105
Generic share66% of claims

Medicare sources and data years

Education and affiliations

Medical schoolTemple University School of Medicine
Graduation year2008
Medicare specialtyMedical Oncology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$9,946 · 10 payments from 7 companies
  • 2024$9,351 · 21 payments from 7 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$9,630 · 5 payments
  • Food and Beverage$211.29 · 3 payments
  • Education$105.00 · 2 payments

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

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