Healthcare provider profile · identity verified

James Robert Mcmahon, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · HINSDALE, IL · NPI 1386683399

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 James Robert Mcmahon, M.D. received $50.25 in general payments during 2025 across 3 reported records.

CVRx, Inc. accounted for 51.3% of that reported general-payment amount.

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

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

Payment overview · 2025

General Payments

$50.25

3 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
CVRx, Inc. Unresolved — no canonical attribution shown $25.7651.3%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $15.7031.2%12025
Impulse Dynamics (USA) Inc. Unresolved — no canonical attribution shown $8.7917.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$50.253

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
Barostim Neo System
Normalized: barostim neo system
Device CVRx, Inc. $25.76 1 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $15.70 1 2025
Source payment records
Optimizer
Normalized: optimizer
Device Impulse Dynamics (USA) Inc. $8.79 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Atorvastatin CalciumAtorvastatin Calcium632183
Metoprolol SuccinateMetoprolol Succinate30588
EliquisApixaban29969
Amlodipine BesylateAmlodipine Besylate25575
Metoprolol TartrateMetoprolol Tartrate23566
CarvedilolCarvedilol16346
Losartan PotassiumLosartan Potassium15854
EzetimibeEzetimibe15452
FurosemideFurosemide14747
Rosuvastatin CalciumRosuvastatin Calcium12737
LisinoprilLisinopril12635
TorsemideTorsemide10638
Potassium ChloridePotassium Chloride9124
Warfarin SodiumWarfarin Sodium8223
Isosorbide Mononitrate ErIsosorbide Mononitrate6717
SpironolactoneSpironolactone6723
EntrestoSacubitril/Valsartan6618
Bisoprolol FumarateBisoprolol Fumarate6420
ClopidogrelClopidogrel Bisulfate6022
ValsartanValsartan6016
JardianceEmpagliflozin5716
Nifedipine ErNifedipine5715
Hydralazine HclHydralazine Hcl5617
XareltoRivaroxaban5315
Amiodarone HclAmiodarone Hcl5216
HydrochlorothiazideHydrochlorothiazide4818
Diltiazem 24hr Er (Cd)Diltiazem Hcl4414
IrbesartanIrbesartan4214
Flecainide AcetateFlecainide Acetate21suppressed
Labetalol HclLabetalol Hcl20suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
Midodrine HclMidodrine Hcl19suppressed
SimvastatinSimvastatin19suppressed
DigoxinDigoxin18suppressed
Enalapril MaleateEnalapril Maleate18suppressed
Pantoprazole SodiumPantoprazole Sodium18suppressed
Dilt-XrDiltiazem Hcl17suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl17suppressed
AtenololAtenolol16suppressed
Repatha SureclickEvolocumab16suppressed
FenofibrateFenofibrate Nanocrystallized15suppressed
Icosapent EthylIcosapent Ethyl15suppressed
JantovenWarfarin Sodium15suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
SotalolSotalol Hcl14suppressed
BrilintaTicagrelor13suppressed
Diltiazem HclDiltiazem Hcl13suppressed
ChlorthalidoneChlorthalidone12suppressed
Diltiazem 24hr ErDiltiazem Hcl12suppressed
MetolazoneMetolazone12suppressed
MultaqDronedarone Hcl12suppressed
AmoxicillinAmoxicillin11suppressed
Cartia XtDiltiazem Hcl11suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide11suppressed
Ranolazine ErRanolazine11suppressed

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 $50.25 · 3 records CVRx, Inc. Barostim Neo System, Optimizer, WATCHMAN FLX
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