Healthcare provider profile · identity verified

Nancy L Brennan, DO

Family Practice · BEND, OR · NPI 1396725834

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
Levothyroxine SodiumLevothyroxine Sodium25672
LisinoprilLisinopril24673
Atorvastatin CalciumAtorvastatin Calcium21256
Losartan PotassiumLosartan Potassium18249
Amlodipine BesylateAmlodipine Besylate12642
SimvastatinSimvastatin12532
Bupropion XlBupropion Hcl10723
Trazodone HclTrazodone Hcl10330
GabapentinGabapentin10134
Pantoprazole SodiumPantoprazole Sodium9922
OmeprazoleOmeprazole9031
Albuterol Sulfate HfaAlbuterol Sulfate8230
Rosuvastatin CalciumRosuvastatin Calcium7923
Sertraline HclSertraline Hcl7522
Citalopram HbrCitalopram Hydrobromide6817
Metformin HclMetformin Hcl6721
Metformin Hcl ErMetformin Hcl6718
Escitalopram OxalateEscitalopram Oxalate6521
Duloxetine HclDuloxetine Hcl6414
Metoprolol SuccinateMetoprolol Succinate5822
FamotidineFamotidine5713
Pravastatin SodiumPravastatin Sodium5312
Tamsulosin HclTamsulosin Hcl5316
ValsartanValsartan5216
HydrochlorothiazideHydrochlorothiazide4915
SynthroidLevothyroxine Sodium4613
FurosemideFurosemide4513
Montelukast SodiumMontelukast Sodium40suppressed
EstradiolEstradiol3911
Pioglitazone HclPioglitazone Hcl3811
EliquisApixaban36suppressed
ClopidogrelClopidogrel Bisulfate34suppressed
Fluoxetine HclFluoxetine Hcl3411
AtenololAtenolol32suppressed
AllopurinolAllopurinol3111
MeloxicamMeloxicam31suppressed
LovastatinLovastatin30suppressed
Buspirone HclBuspirone Hcl29suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen29suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl29suppressed
Sumatriptan SuccinateSumatriptan Succinate29suppressed
Doxazosin MesylateDoxazosin Mesylate25suppressed
IbuprofenIbuprofen25suppressed
CarvedilolCarvedilol24suppressed
Fluticasone PropionateFluticasone Propionate24suppressed
SpironolactoneSpironolactone24suppressed
JanuviaSitagliptin Phosphate22suppressed
PrednisonePrednisone2211
Alendronate SodiumAlendronate Sodium21suppressed
Ipratropium BromideIpratropium Bromide21suppressed
Ropinirole HclRopinirole Hcl21suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid21suppressed
Donepezil HclDonepezil Hcl20suppressed
ValacyclovirValacyclovir Hcl2013
LamotrigineLamotrigine19suppressed
Paroxetine HclParoxetine Hcl19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
TrulicityDulaglutide18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
FenofibrateFenofibrate17suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
EzetimibeEzetimibe16suppressed
Oxybutynin Chloride ErOxybutynin Chloride16suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate14suppressed
CholestyramineCholestyramine (With Sugar)14suppressed
EnuloseLactulose14suppressed
NitroglycerinNitroglycerin14suppressed
RizatriptanRizatriptan Benzoate14suppressed
ClonazepamClonazepam13suppressed
LevetiracetamLevetiracetam13suppressed
Potassium ChloridePotassium Chloride13suppressed
PregabalinPregabalin13suppressed
Tramadol HclTramadol Hcl13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog12suppressed
ChlorthalidoneChlorthalidone12suppressed
Oxycodone HclOxycodone Hcl12suppressed
AcyclovirAcyclovir11suppressed
GlimepirideGlimepiride11suppressed
JardianceEmpagliflozin11suppressed
MethocarbamolMethocarbamol11suppressed
SucralfateSucralfate11suppressed

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