Healthcare provider profile · identity verified

Fredrick W. Weisensee, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · CORVALLIS, OR · NPI 1275579260

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 Fredrick W. Weisensee, M.D. received $18.54 in general payments during 2025 across 1 reported records.

Novo Nordisk Inc accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 116 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$18.54

1 reported records · 1 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $18.54100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$18.541

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $18.54 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $18.54 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
Ozempic
ozempic
2025 Ozempic 2024 116 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
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
116 19

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 Calcium816207
Losartan PotassiumLosartan Potassium437111
Levothyroxine SodiumLevothyroxine Sodium38787
LisinoprilLisinopril36498
Amlodipine BesylateAmlodipine Besylate34092
GabapentinGabapentin28872
OmeprazoleOmeprazole25961
Metoprolol SuccinateMetoprolol Succinate23562
Metformin HclMetformin Hcl20454
Duloxetine HclDuloxetine Hcl19445
Tamsulosin HclTamsulosin Hcl19345
Albuterol Sulfate HfaAlbuterol Sulfate16656
Rosuvastatin CalciumRosuvastatin Calcium16444
Trazodone HclTrazodone Hcl14536
SimvastatinSimvastatin14337
Bupropion XlBupropion Hcl14128
EliquisApixaban14035
CarvedilolCarvedilol12028
Montelukast SodiumMontelukast Sodium11725
OzempicSemaglutide11619
PregabalinPregabalin10921
Warfarin SodiumWarfarin Sodium10725
JardianceEmpagliflozin10624
Metformin Hcl ErMetformin Hcl10628
Pantoprazole SodiumPantoprazole Sodium10225
TrulicityDulaglutide9619
MirtazapineMirtazapine9421
ChlorthalidoneChlorthalidone8821
Donepezil HclDonepezil Hcl8616
Fluticasone PropionateFluticasone Propionate8628
ClopidogrelClopidogrel Bisulfate8216
Escitalopram OxalateEscitalopram Oxalate7822
FurosemideFurosemide7315
FamotidineFamotidine6613
FinasterideFinasteride6520
Metoprolol TartrateMetoprolol Tartrate6516
Potassium ChloridePotassium Chloride6217
Cyclobenzaprine HclCyclobenzaprine Hcl5917
Clonidine HclClonidine Hcl5815
Sertraline HclSertraline Hcl5817
SpironolactoneSpironolactone5817
AllopurinolAllopurinol5715
Alendronate SodiumAlendronate Sodium5014
Fluticasone-SalmeterolFluticasone Propion/Salmeterol4713
Fluoxetine HclFluoxetine Hcl4613
Bupropion Hcl SrBupropion Hcl45suppressed
Propranolol HclPropranolol Hcl45suppressed
Ondansetron OdtOndansetron4311
Tramadol HclTramadol Hcl4214
AcyclovirAcyclovir4113
Combivent RespimatIpratropium/Albuterol Sulfate4011
Buspirone HclBuspirone Hcl38suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3811
Oxycodone HclOxycodone Hcl38suppressed
PrednisonePrednisone3832
Memantine HclMemantine Hcl37suppressed
LovastatinLovastatin36suppressed
Pravastatin SodiumPravastatin Sodium36suppressed
RizatriptanRizatriptan Benzoate36suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen35suppressed
InvokanaCanagliflozin35suppressed
Testosterone CypionateTestosterone Cypionate34suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium33suppressed
Ipratropium BromideIpratropium Bromide3212
MeloxicamMeloxicam3216
Tizanidine HclTizanidine Hcl3213
Breo ElliptaFluticasone/Vilanterol31suppressed
JanuviaSitagliptin Phosphate31suppressed
Ropinirole HclRopinirole Hcl31suppressed
LamotrigineLamotrigine30suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog29suppressed
Paroxetine HclParoxetine Hcl29suppressed
TopiramateTopiramate29suppressed
Hydroxyzine HclHydroxyzine Hcl28suppressed
Sumatriptan SuccinateSumatriptan Succinate27suppressed
Diclofenac SodiumDiclofenac Sodium25suppressed
Enalapril MaleateEnalapril Maleate25suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Zolpidem TartrateZolpidem Tartrate25suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine24suppressed
LorazepamLorazepam24suppressed
ValsartanValsartan24suppressed
EzetimibeEzetimibe23suppressed
Nortriptyline HclNortriptyline Hcl23suppressed
BaclofenBaclofen22suppressed
EstradiolEstradiol21suppressed
Ventolin HfaAlbuterol Sulfate21suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Lithium CarbonateLithium Carbonate20suppressed
CelecoxibCelecoxib19suppressed
Doxazosin MesylateDoxazosin Mesylate19suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1919
HydrochlorothiazideHydrochlorothiazide19suppressed
Incruse ElliptaUmeclidinium Bromide19suppressed
Methylphenidate HclMethylphenidate Hcl19suppressed
SucralfateSucralfate19suppressed
AtenololAtenolol18suppressed
LantusInsulin Glargine,hum.Rec.Anlog18suppressed
Benztropine MesylateBenztropine Mesylate17suppressed
CholestyramineCholestyramine (With Sugar)17suppressed
GlipizideGlipizide17suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro17suppressed
Novolog FlexpenInsulin Aspart17suppressed
Prazosin HclPrazosin Hcl17suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
AmoxicillinAmoxicillin1613
Calcitonin-SalmonCalcitonin,salmon,synthetic16suppressed
NystatinNystatin16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Varenicline TartrateVarenicline Tartrate16suppressed
SynthroidLevothyroxine Sodium15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1511
Isosorbide Mononitrate ErIsosorbide Mononitrate14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
Propranolol Hcl ErPropranolol Hcl14suppressed
Bydureon BciseExenatide Microspheres13suppressed
KetoconazoleKetoconazole13suppressed
LidocaineLidocaine13suppressed
NitroglycerinNitroglycerin13suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic13suppressed
Acamprosate CalciumAcamprosate Calcium12suppressed
IrbesartanIrbesartan12suppressed
LansoprazoleLansoprazole12suppressed
Lithium Carbonate ErLithium Carbonate12suppressed
Lurasidone HclLurasidone Hcl12suppressed
Medroxyprogesterone AcetateMedroxyprogesterone Acetate12suppressed
OxcarbazepineOxcarbazepine12suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
Azelastine HclAzelastine Hcl11suppressed
Cardizem LaDiltiazem Hcl11suppressed
ColchicineColchicine11suppressed
DigoxinDigoxin11suppressed
RisperidoneRisperidone11suppressed

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 $18.54 · 1 records Novo Nordisk Inc Ozempic, Rybelsus 1
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