Healthcare provider profile · identity verified

Greg Vaughan Manson, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · MASSILLON, OH · NPI 1689882961

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 Greg Vaughan Manson, MD received $141.67 in general payments during 2025 across 6 reported records.

AstraZeneca Pharmaceuticals LP accounted for 50.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Brukinsa.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CALQUENCE as an associated drug or biological on 8404 records involving 3935 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Calquence by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TAGRISSO as an associated drug or biological on 5285 records involving 2776 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Tagrisso by this doctor in 2024.

BeOne Medicines USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRUKINSA as an associated drug or biological on 10251 records involving 4941 distinct recipient NPIs. Public Medicare Part D data also shows 57 claims for Brukinsa by this doctor in 2024.

Genentech USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Venclexta as an associated drug or biological on 2896 records involving 2018 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Venclexta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$141.67

6 reported records · 3 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $71.5250.5%32025
Genentech USA, Inc. Unresolved — no canonical attribution shown $48.8034.5%22025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $21.3515.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$141.676

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
ENHERTU
Normalized: enhertu
Biological AstraZeneca Pharmaceuticals LP $57.21 2 2025
Source payment records
Polivy
Normalized: polivy
Biological Genentech USA, Inc. $48.80 2 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $21.35 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
BRUKINSA
brukinsa
2025 Brukinsa 2024 57
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 CALQUENCE
open payments reported associated product
CMS Open Payments — General Payments
8404 supporting records · 3935 recipient NPIs · example record 1206131382
Calquence · 2024
Exact normalized brand match · 1 Part D row
61 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TAGRISSO
open payments reported associated product
CMS Open Payments — General Payments
5285 supporting records · 2776 recipient NPIs · example record 1206131546
Tagrisso · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
BeOne Medicines USA, Inc.
Exact reporting entity; no affiliate inference
2025 BRUKINSA
open payments reported associated product
CMS Open Payments — General Payments
10251 supporting records · 4941 recipient NPIs · example record 1202883638
Brukinsa · 2024
Exact normalized brand match · 1 Part D row
57 suppressed by CMS
Genentech USA, Inc.
Exact reporting entity; no affiliate inference
2025 Venclexta
open payments reported associated product
CMS Open Payments — General Payments
2896 supporting records · 2018 recipient NPIs · example record 1211488584
Venclexta · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS

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
LetrozoleLetrozole10925
AnastrozoleAnastrozole10227
PrednisonePrednisone8623
HydroxyureaHydroxyurea8218
Ondansetron HclOndansetron Hcl8048
Prochlorperazine MaleateProchlorperazine Maleate7856
Abiraterone AcetateAbiraterone Acetate64suppressed
CalquenceAcalabrutinib Maleate61suppressed
BrukinsaZanubrutinib57suppressed
DexamethasoneDexamethasone5122
XareltoRivaroxaban5012
Tamoxifen CitrateTamoxifen Citrate4912
VerzenioAbemaciclib49suppressed
EliquisApixaban4412
Potassium ChloridePotassium Chloride4317
AcyclovirAcyclovir3613
Imatinib MesylateImatinib Mesylate29suppressed
KisqaliRibociclib Succinate29suppressed
Oxycodone HclOxycodone Hcl29suppressed
RevlimidLenalidomide29suppressed
LenalidomideLenalidomide28suppressed
NubeqaDarolutamide27suppressed
VenclextaVenetoclax26suppressed
Alendronate SodiumAlendronate Sodium23suppressed
LumakrasSotorasib23suppressed
ErleadaApalutamide22suppressed
OrgovyxRelugolix22suppressed
Folic AcidFolic Acid19suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine1812
ExemestaneExemestane17suppressed
FluconazoleFluconazole16suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)15suppressed
IbrancePalbociclib15suppressed
DeferasiroxDeferasirox14suppressed
TasignaNilotinib Hcl13suppressed
RetevmoSelpercatinib12suppressed
TagrissoOsimertinib Mesylate12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
LonsurfTrifluridine/Tipiracil Hcl11suppressed
Minocycline HclMinocycline Hcl11suppressed
PromactaEltrombopag Olamine11suppressed

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 $141.67 · 6 records AstraZeneca Pharmaceuticals LP BRUKINSA, ENHERTU, Polivy 4
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