Healthcare provider profile · identity verified

Nicholas Wittry, M.D.

Family Practice · MILWAUKEE, WI · NPI 1538426697

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 Calcium465102
LisinoprilLisinopril31162
Amlodipine BesylateAmlodipine Besylate26157
HydrochlorothiazideHydrochlorothiazide18440
Metformin HclMetformin Hcl16633
OmeprazoleOmeprazole14728
Losartan PotassiumLosartan Potassium12031
Albuterol Sulfate HfaAlbuterol Sulfate10333
FurosemideFurosemide9816
Metoprolol SuccinateMetoprolol Succinate7912
Montelukast SodiumMontelukast Sodium7911
Levothyroxine SodiumLevothyroxine Sodium7816
GabapentinGabapentin7711
Trazodone HclTrazodone Hcl77suppressed
Pravastatin SodiumPravastatin Sodium7311
Fluoxetine HclFluoxetine Hcl70suppressed
ChlorthalidoneChlorthalidone6521
Potassium ChloridePotassium Chloride6214
Enalapril MaleateEnalapril Maleate55suppressed
Rosuvastatin CalciumRosuvastatin Calcium5211
Sertraline HclSertraline Hcl4811
TrulicityDulaglutide47suppressed
JardianceEmpagliflozin42suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide40suppressed
IbuprofenIbuprofen39suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog38suppressed
Hydralazine HclHydralazine Hcl37suppressed
Fluticasone PropionateFluticasone Propionate3618
XareltoRivaroxaban35suppressed
CarvedilolCarvedilol34suppressed
Duloxetine HclDuloxetine Hcl34suppressed
Hydroxyzine HclHydroxyzine Hcl34suppressed
Pantoprazole SodiumPantoprazole Sodium34suppressed
Alendronate SodiumAlendronate Sodium33suppressed
Bupropion XlBupropion Hcl33suppressed
MirtazapineMirtazapine32suppressed
Metoprolol TartrateMetoprolol Tartrate29suppressed
Citalopram HbrCitalopram Hydrobromide27suppressed
ClopidogrelClopidogrel Bisulfate25suppressed
EliquisApixaban25suppressed
Paroxetine HclParoxetine Hcl25suppressed
SimvastatinSimvastatin25suppressed
ThiothixeneThiothixene25suppressed
Tamsulosin HclTamsulosin Hcl24suppressed
OzempicSemaglutide23suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
FenofibrateFenofibrate Nanocrystallized18suppressed
SymbicortBudesonide/Formoterol Fumarate18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters17suppressed
Escitalopram OxalateEscitalopram Oxalate16suppressed
IndapamideIndapamide16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
SucralfateSucralfate15suppressed
Tramadol HclTramadol Hcl15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
FamotidineFamotidine14suppressed
Labetalol HclLabetalol Hcl14suppressed
VascepaIcosapent Ethyl14suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog13suppressed
Benztropine MesylateBenztropine Mesylate13suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac1313
Diltiazem 24hr ErDiltiazem Hcl13suppressed
JanuviaSitagliptin Phosphate13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic13suppressed
AllopurinolAllopurinol12suppressed
Benazepril HclBenazepril Hcl12suppressed
Metformin Hcl ErMetformin Hcl12suppressed
MethocarbamolMethocarbamol12suppressed
MounjaroTirzepatide12suppressed
Naltrexone HclNaltrexone Hcl12suppressed
PregabalinPregabalin12suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf12suppressed
SpironolactoneSpironolactone12suppressed
Varenicline TartrateVarenicline Tartrate12suppressed
AlprazolamAlprazolam11suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
Lurasidone HclLurasidone Hcl11suppressed
Nortriptyline HclNortriptyline 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