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Robert G. Maki, MD, PHD

NPI 1538130323ActiveIndividual· Internal Medicine, Hematology & Oncology· Philadelphia, PA

Internal Medicine, Hematology & Oncology (MD, PHD) with Memorial Solid Tumor Group and 1 other group, practicing in Philadelphia, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $934,900 for 401 claims, against $54,669 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $135.85 in all, mostly food and beverage.

Overview

NPI1538130323
StatusActive
Entity typeIndividual
CredentialMD, PHD
Sole proprietorNo
NPI issuedJan 30, 2006
Last updated in NPPESFeb 2, 2021
Certified by providerFeb 2, 2021

Specialties and licenses

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 (NY); Practitioner - Hematology/Oncology (PA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients181
Services billed870 across 13 procedure codes
Paid by Medicare$54,669

Part D prescriptions in 2024

Prescriptions (claims)401 · 446 30-day fills
Patients87
Total drug cost$934,900
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Graduation year1992
Medicare specialtyMedical Oncology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical groups

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$135.85 · 2 payments from 2 companies
  • 2024$13,529 · 11 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Glaxosmithkline, LLC.$95.561
Geron Corporation$40.291

What the 2025 payments were for

  • Food and Beverage$135.85 · 2 payments

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

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