Healthcare provider profile · identity verified

Edward William Duffy, MD

Allopathic & Osteopathic Physicians|Radiology|Radiation Oncology · COLUMBIA, SC · NPI 1205495884

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Edward William Duffy, MD received $1,209.60 in general payments during 2025 across 52 reported records.

Merck Sharp & Dohme LLC accounted for 10.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 39 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$1,209.60

52 reported records · 24 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $132.5010.9%52025
Genentech USA, Inc. Unresolved — no canonical attribution shown $124.4310.3%52025
Lilly USA, LLC Unresolved — no canonical attribution shown $80.116.6%32025
ABBVIE INC. Unresolved — no canonical attribution shown $77.596.4%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $74.386.2%42025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $67.635.6%32025
EMD Serono, Inc. Unresolved — no canonical attribution shown $67.045.5%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $63.515.2%22025
Incyte Corporation Unresolved — no canonical attribution shown $55.214.6%32025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $53.244.4%22025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $50.034.1%22025
SERVIER PHARMACEUTICALS LLC Unresolved — no canonical attribution shown $48.984.0%22025
Karyopharm Therapeutics Inc. Unresolved — no canonical attribution shown $40.033.3%22025
PUMA BIOTECHNOLOGY, INC. Unresolved — no canonical attribution shown $31.352.6%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $30.472.5%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $28.902.4%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $27.942.3%12025
ADC THERAPEUTICS AMERICA, INC. Unresolved — no canonical attribution shown $26.292.2%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $24.702.0%12025
TerSera Therapeutics LLC Unresolved — no canonical attribution shown $24.142.0%12025
Spectrum Pharmaceuticals Inc. Unresolved — no canonical attribution shown $22.701.9%12025
Stemline Therapeutics Inc. Unresolved — no canonical attribution shown $21.241.8%12025
Verastem, Inc. Unresolved — no canonical attribution shown $19.761.6%12025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $17.431.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,209.6052

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $102.65 4 2025
Source payment records
JAYPIRCA
Normalized: jaypirca
Drug Lilly USA, LLC $80.11 3 2025
Source payment records
VERZENIO
Normalized: verzenio
Drug Lilly USA, LLC $80.11 3 2025
Source payment records
Venclexta
Normalized: venclexta
Biological Genentech USA, Inc. $62.99 2 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $60.02 2 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $50.03 2 2025
Source payment records
Voranigo
Normalized: voranigo
Drug SERVIER PHARMACEUTICALS LLC $48.98 2 2025
Source payment records
XPOVIO
Normalized: xpovio
Drug Karyopharm Therapeutics Inc. $40.03 2 2025
Source payment records
BALVERSA
Normalized: balversa
Drug Janssen Biotech, Inc. $38.82 2 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Biotech, Inc. $38.82 2 2025
Source payment records
JAKAFI
Normalized: jakafi
Drug Incyte Corporation $35.14 2 2025
Source payment records
NIKTIMVO
Normalized: niktimvo
Drug Incyte Corporation $35.14 2 2025
Source payment records
ICLUSIG
Normalized: iclusig
Drug Takeda Pharmaceuticals U.S.A., Inc. $33.08 1 2025
Source payment records
NERLYNX
Normalized: nerlynx
Drug PUMA BIOTECHNOLOGY, INC. $31.35 2 2025
Source payment records
LUTATHERA
Normalized: lutathera
Drug Novartis Pharmaceuticals Corporation $30.47 1 2025
Source payment records
NINLARO
Normalized: ninlaro
Drug Takeda Pharmaceuticals U.S.A., Inc. $30.43 1 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $28.90 1 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $28.81 1 2025
Source payment records
SARCLISA
Normalized: sarclisa
Biological GENZYME CORPORATION $27.94 1 2025
Source payment records
INJECTAFER
Normalized: injectafer
Drug Daiichi Sankyo Inc. $26.84 1 2025
Source payment records
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $26.40 1 2025
Source payment records
ZYNLONTA
Normalized: zynlonta
Drug ADC THERAPEUTICS AMERICA, INC. $26.29 1 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $25.65 1 2025
Source payment records
LAGEVRIO
Normalized: lagevrio
Drug Merck Sharp & Dohme LLC $25.65 1 2025
Source payment records
Zoladex
Normalized: zoladex
Drug TerSera Therapeutics LLC $24.14 1 2025
Source payment records
Itovebi
Normalized: itovebi
Biological Genentech USA, Inc. $23.50 1 2025
Source payment records
Kadcyla
Normalized: kadcyla
Biological Genentech USA, Inc. $23.50 1 2025
Source payment records
Perjeta
Normalized: perjeta
Biological Genentech USA, Inc. $23.50 1 2025
Source payment records
ROLVEDON
Normalized: rolvedon
Drug Spectrum Pharmaceuticals Inc. $22.70 1 2025
Source payment records
Orserdu
Normalized: orserdu
Drug Stemline Therapeutics Inc. $21.24 1 2025
Source payment records
Polivy
Normalized: polivy
Biological Genentech USA, Inc. $20.12 1 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $20.07 1 2025
Source payment records
PEMAZYRE
Normalized: pemazyre
Drug Incyte Corporation $20.07 1 2025
Source payment records
AVMAPKI FAKZYNJA CO-PACK
Normalized: avmapki fakzynja co pack
Drug Verastem, Inc. $19.76 1 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $19.68 1 2025
Source payment records
AKEEGA
Normalized: akeega
Drug Janssen Biotech, Inc. $19.45 1 2025
Source payment records
Tecentriq
Normalized: tecentriq
Biological Genentech USA, Inc. $17.82 1 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $17.57 1 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $17.43 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Oxycodone HclOxycodone Hcl11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $1,209.60 · 52 records Merck Sharp & Dohme LLC AKEEGA, AVMAPKI FAKZYNJA CO-PACK, BALVERSA, BRUKINSA, CALQUENCE, ELAHERE, ERLEADA, Enhertu, FOTIVDA, ICLUSIG, IMBRUVICA, INJECTAFER, Itovebi, JAKAFI, JAYPIRCA, KEYTRUDA, KEYTRUDA QLEX, Kadcyla, LAGEVRIO, LUTATHERA, MONJUVI, NERLYNX, NIKTIMVO, NINLARO, Orserdu, PEMAZYRE, Perjeta, Polivy, ROLVEDON, RYBREVANT, SARCLISA, Tecentriq, Trodelvy, VERZENIO, Venclexta, Voranigo, XPOVIO, ZYNLONTA, Zoladex
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error