Healthcare provider profile · identity verified

John J Mckenna, MD

Family Practice · MADISON, WI · NPI 1174881064

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium727196
Amlodipine BesylateAmlodipine Besylate34892
LisinoprilLisinopril34189
OmeprazoleOmeprazole26077
Rosuvastatin CalciumRosuvastatin Calcium19667
Levothyroxine SodiumLevothyroxine Sodium19043
GabapentinGabapentin18458
Losartan PotassiumLosartan Potassium17548
Metformin Hcl ErMetformin Hcl15851
Metoprolol SuccinateMetoprolol Succinate15049
Tamsulosin HclTamsulosin Hcl14443
Tizanidine HclTizanidine Hcl13565
HydrochlorothiazideHydrochlorothiazide13337
Trazodone HclTrazodone Hcl11838
FurosemideFurosemide11735
FamotidineFamotidine10839
Fluticasone PropionateFluticasone Propionate10640
EliquisApixaban10520
Albuterol Sulfate HfaAlbuterol Sulfate10352
CarvedilolCarvedilol9621
Sertraline HclSertraline Hcl9327
AllopurinolAllopurinol8123
Warfarin SodiumWarfarin Sodium7715
Metoprolol TartrateMetoprolol Tartrate7021
Pantoprazole SodiumPantoprazole Sodium6921
Escitalopram OxalateEscitalopram Oxalate6620
Metformin HclMetformin Hcl6117
OzempicSemaglutide6112
FinasterideFinasteride5917
Doxazosin MesylateDoxazosin Mesylate5716
Potassium ChloridePotassium Chloride5619
AtenololAtenolol5212
Fluoxetine HclFluoxetine Hcl5212
ChlorthalidoneChlorthalidone4814
XareltoRivaroxaban4611
AlprazolamAlprazolam45suppressed
Quetiapine FumarateQuetiapine Fumarate45suppressed
Duloxetine HclDuloxetine Hcl43suppressed
Triamcinolone AcetonideTriamcinolone Acetonide4338
Diclofenac SodiumDiclofenac Sodium4219
Paroxetine HclParoxetine Hcl42suppressed
JardianceEmpagliflozin41suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4113
Ventolin HfaAlbuterol Sulfate4121
Hydralazine HclHydralazine Hcl38suppressed
Doxycycline HyclateDoxycycline Hyclate3725
Pioglitazone HclPioglitazone Hcl3711
PrednisonePrednisone3528
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide32suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid32suppressed
Bupropion XlBupropion Hcl31suppressed
ClopidogrelClopidogrel Bisulfate31suppressed
LorazepamLorazepam31suppressed
Enalapril MaleateEnalapril Maleate30suppressed
Glipizide ErGlipizide30suppressed
SpironolactoneSpironolactone3011
Oxybutynin Chloride ErOxybutynin Chloride29suppressed
SimvastatinSimvastatin29suppressed
Amitriptyline HclAmitriptyline Hcl28suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog28suppressed
MeloxicamMeloxicam28suppressed
Pravastatin SodiumPravastatin Sodium28suppressed
Hydroxyzine HclHydroxyzine Hcl2611
Isosorbide Mononitrate ErIsosorbide Mononitrate26suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl25suppressed
Memantine HclMemantine Hcl24suppressed
Montelukast SodiumMontelukast Sodium24suppressed
Divalproex Sodium ErDivalproex Sodium23suppressed
ValacyclovirValacyclovir Hcl22suppressed
AripiprazoleAripiprazole21suppressed
CiclopiroxCiclopirox21suppressed
Tramadol HclTramadol Hcl21suppressed
MirtazapineMirtazapine20suppressed
Propranolol HclPropranolol Hcl20suppressed
AmoxicillinAmoxicillin1913
TemazepamTemazepam19suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18suppressed
HydrocortisoneHydrocortisone1814
KetoconazoleKetoconazole18suppressed
Benazepril HclBenazepril Hcl17suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1616
LamotrigineLamotrigine16suppressed
Wixela InhubFluticasone Propion/Salmeterol16suppressed
Buspirone HclBuspirone Hcl15suppressed
Combivent RespimatIpratropium/Albuterol Sulfate14suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
NitroglycerinNitroglycerin1413
OlanzapineOlanzapine14suppressed
Oxybutynin ChlorideOxybutynin Chloride14suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
GlipizideGlipizide13suppressed
Imipramine HclImipramine Hcl13suppressed
MethocarbamolMethocarbamol13suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic13suppressed
ClozapineClozapine12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
LovastatinLovastatin12suppressed
RivastigmineRivastigmine12suppressed
Terazosin HclTerazosin Hcl12suppressed
Alfuzosin Hcl ErAlfuzosin Hcl11suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate11suppressed
NystatinNystatin11suppressed
Zolpidem TartrateZolpidem Tartrate11suppressed

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
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