Healthcare provider profile · identity verified

Thaddeus C Whiting, DO

Family Practice · PORTAGE, WI · NPI 1497792113

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 Calcium20258
Amlodipine BesylateAmlodipine Besylate11732
OmeprazoleOmeprazole11128
LisinoprilLisinopril10339
Levothyroxine SodiumLevothyroxine Sodium8219
Tamsulosin HclTamsulosin Hcl8221
FurosemideFurosemide8024
PrednisonePrednisone8076
Metoprolol SuccinateMetoprolol Succinate7927
Rosuvastatin CalciumRosuvastatin Calcium6623
Losartan PotassiumLosartan Potassium6423
Potassium ChloridePotassium Chloride6316
SimvastatinSimvastatin6318
Albuterol Sulfate HfaAlbuterol Sulfate6122
HydrochlorothiazideHydrochlorothiazide6025
GabapentinGabapentin5815
Metoprolol TartrateMetoprolol Tartrate4914
Pantoprazole SodiumPantoprazole Sodium4211
Trazodone HclTrazodone Hcl4213
AllopurinolAllopurinol3914
Metformin HclMetformin Hcl3916
MirtazapineMirtazapine35suppressed
Fluticasone PropionateFluticasone Propionate34suppressed
AzithromycinAzithromycin3231
BaclofenBaclofen31suppressed
FamotidineFamotidine3112
Quetiapine FumarateQuetiapine Fumarate31suppressed
XareltoRivaroxaban31suppressed
EliquisApixaban30suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2912
Diclofenac SodiumDiclofenac Sodium2715
Triamcinolone AcetonideTriamcinolone Acetonide2716
Bupropion XlBupropion Hcl26suppressed
GlipizideGlipizide26suppressed
MounjaroTirzepatide26suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
TrulicityDulaglutide26suppressed
Warfarin SodiumWarfarin Sodium26suppressed
Duloxetine HclDuloxetine Hcl25suppressed
Morphine SulfateMorphine Sulfate25suppressed
Paroxetine HclParoxetine Hcl24suppressed
CarvedilolCarvedilol23suppressed
Fluoxetine HclFluoxetine Hcl23suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2323
Solifenacin SuccinateSolifenacin Succinate22suppressed
AtenololAtenolol21suppressed
Benazepril HclBenazepril Hcl21suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2119
Doxycycline HyclateDoxycycline Hyclate2020
Glipizide ErGlipizide20suppressed
Sertraline HclSertraline Hcl19suppressed
LamotrigineLamotrigine18suppressed
Metformin Hcl ErMetformin Hcl18suppressed
NystatinNystatin1815
SpironolactoneSpironolactone18suppressed
AmoxicillinAmoxicillin1714
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
AlprazolamAlprazolam15suppressed
ClopidogrelClopidogrel Bisulfate15suppressed
OzempicSemaglutide15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc14suppressed
Ciprofloxacin HclCiprofloxacin Hcl1414
Midodrine HclMidodrine Hcl14suppressed
Tizanidine HclTizanidine Hcl14suppressed
FinasterideFinasteride13suppressed
Terazosin HclTerazosin Hcl13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
LoperamideLoperamide Hcl12suppressed
Verapamil ErVerapamil Hcl12suppressed
AripiprazoleAripiprazole11suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog11suppressed
FentanylFentanyl11suppressed
LevetiracetamLevetiracetam11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
SymbicortBudesonide/Formoterol Fumarate11suppressed
Tramadol HclTramadol Hcl11suppressed
Ventolin HfaAlbuterol Sulfate11suppressed

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