Healthcare provider profile · identity verified

David Brennan, M.D.

Internal Medicine · ROCHESTER, MN · NPI 1982083184

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 Calcium29184
Losartan PotassiumLosartan Potassium12745
Rosuvastatin CalciumRosuvastatin Calcium11040
Amlodipine BesylateAmlodipine Besylate10234
Pantoprazole SodiumPantoprazole Sodium9533
Levothyroxine SodiumLevothyroxine Sodium9034
LisinoprilLisinopril8526
GabapentinGabapentin8228
EliquisApixaban8023
Tamsulosin HclTamsulosin Hcl8028
OmeprazoleOmeprazole7019
Bupropion XlBupropion Hcl6521
Metformin Hcl ErMetformin Hcl6116
Warfarin SodiumWarfarin Sodium5714
JardianceEmpagliflozin5611
Metoprolol SuccinateMetoprolol Succinate5620
Trazodone HclTrazodone Hcl5620
Metformin HclMetformin Hcl5518
PregabalinPregabalin4912
Metoprolol TartrateMetoprolol Tartrate44suppressed
Duloxetine HclDuloxetine Hcl43suppressed
Donepezil HclDonepezil Hcl42suppressed
CarvedilolCarvedilol4114
FurosemideFurosemide4016
HydrochlorothiazideHydrochlorothiazide4016
LevetiracetamLevetiracetam40suppressed
Quetiapine FumarateQuetiapine Fumarate38suppressed
ClonazepamClonazepam34suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl34suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3012
PrednisonePrednisone3011
Lantus SolostarInsulin Glargine,hum.Rec.Anlog29suppressed
Oxycodone HclOxycodone Hcl2811
OlanzapineOlanzapine27suppressed
AllopurinolAllopurinol26suppressed
Divalproex Sodium ErDivalproex Sodium26suppressed
Fluticasone PropionateFluticasone Propionate25suppressed
Sertraline HclSertraline Hcl23suppressed
EzetimibeEzetimibe22suppressed
Glipizide ErGlipizide22suppressed
SimvastatinSimvastatin22suppressed
ChlorthalidoneChlorthalidone21suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
RybelsusSemaglutide19suppressed
SpironolactoneSpironolactone19suppressed
XareltoRivaroxaban19suppressed
OzempicSemaglutide18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1811
ClopidogrelClopidogrel Bisulfate17suppressed
OxcarbazepineOxcarbazepine17suppressed
RisperidoneRisperidone17suppressed
Tizanidine HclTizanidine Hcl17suppressed
AtenololAtenolol16suppressed
Bydureon BciseExenatide Microspheres16suppressed
KetoconazoleKetoconazole16suppressed
TorsemideTorsemide16suppressed
Alendronate SodiumAlendronate Sodium15suppressed
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl1514
TelmisartanTelmisartan15suppressed
Calcium AcetateCalcium Acetate13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Humalog Kwikpen U-100Insulin Lispro13suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
Tramadol HclTramadol Hcl13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
XcopriCenobamate13suppressed
Albuterol Sulfate HfaAlbuterol Sulfate12suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
FinasterideFinasteride12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
GlipizideGlipizide12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12suppressed
Hydromorphone HclHydromorphone Hcl12suppressed
IbuprofenIbuprofen12suppressed
LacosamideLacosamide12suppressed
LorazepamLorazepam12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
MetronidazoleMetronidazole11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
Novolin NInsulin Nph Human Isophane11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed
Prochlorperazine MaleateProchlorperazine Maleate11suppressed
Promethazine HclPromethazine Hcl11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim11suppressed
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