Healthcare provider profile · identity verified

Preston Michael Stephens, M.D.

Family Practice · MADISON, WI · NPI 1144675133

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 Calcium29777
Levothyroxine SodiumLevothyroxine Sodium23751
Amlodipine BesylateAmlodipine Besylate19161
Losartan PotassiumLosartan Potassium17546
LisinoprilLisinopril16946
HydrochlorothiazideHydrochlorothiazide14445
OmeprazoleOmeprazole13629
Duloxetine HclDuloxetine Hcl13225
Metoprolol SuccinateMetoprolol Succinate9626
Rosuvastatin CalciumRosuvastatin Calcium8529
Metformin HclMetformin Hcl7716
Trazodone HclTrazodone Hcl7720
GabapentinGabapentin7623
SimvastatinSimvastatin7218
Pantoprazole SodiumPantoprazole Sodium7120
CarvedilolCarvedilol6816
Alendronate SodiumAlendronate Sodium6718
EliquisApixaban6718
Tamsulosin HclTamsulosin Hcl6615
FamotidineFamotidine5617
Pravastatin SodiumPravastatin Sodium5414
Bupropion XlBupropion Hcl5316
Fluoxetine HclFluoxetine Hcl5316
FurosemideFurosemide5319
Oxycodone HclOxycodone Hcl49suppressed
Buspirone HclBuspirone Hcl47suppressed
TrulicityDulaglutide47suppressed
Zolpidem TartrateZolpidem Tartrate47suppressed
Sertraline HclSertraline Hcl4616
Potassium ChloridePotassium Chloride4513
JardianceEmpagliflozin44suppressed
Escitalopram OxalateEscitalopram Oxalate4313
Metformin Hcl ErMetformin Hcl4313
Albuterol Sulfate HfaAlbuterol Sulfate4219
MirtazapineMirtazapine4212
AtenololAtenolol4111
ClonazepamClonazepam40suppressed
Quetiapine FumarateQuetiapine Fumarate39suppressed
RisperidoneRisperidone38suppressed
LorazepamLorazepam3713
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen37suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3423
Fluticasone PropionateFluticasone Propionate3317
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen32suppressed
Tizanidine HclTizanidine Hcl32suppressed
Propranolol HclPropranolol Hcl31suppressed
Paroxetine HclParoxetine Hcl30suppressed
Doxepin HclDoxepin Hcl29suppressed
IrbesartanIrbesartan28suppressed
LamotrigineLamotrigine26suppressed
AlprazolamAlprazolam25suppressed
CelecoxibCelecoxib25suppressed
Metoprolol TartrateMetoprolol Tartrate25suppressed
Azelastine HclAzelastine Hcl24suppressed
Nifedipine ErNifedipine24suppressed
PregabalinPregabalin24suppressed
ChlorthalidoneChlorthalidone23suppressed
XareltoRivaroxaban23suppressed
Citalopram HbrCitalopram Hydrobromide22suppressed
Donepezil HclDonepezil Hcl21suppressed
Benazepril HclBenazepril Hcl20suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog20suppressed
OlanzapineOlanzapine20suppressed
EstradiolEstradiol19suppressed
KetoconazoleKetoconazole1911
Metoclopramide HclMetoclopramide Hcl19suppressed
PrednisonePrednisone19suppressed
SynthroidLevothyroxine Sodium19suppressed
EzetimibeEzetimibe18suppressed
AllopurinolAllopurinol17suppressed
Benztropine MesylateBenztropine Mesylate17suppressed
CalcitriolCalcitriol17suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine17suppressed
DiazepamDiazepam17suppressed
RybelsusSemaglutide17suppressed
ValsartanValsartan17suppressed
AcyclovirAcyclovir16suppressed
JanuviaSitagliptin Phosphate16suppressed
LovastatinLovastatin16suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
MounjaroTirzepatide15suppressed
AzithromycinAzithromycin14suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
Humalog Kwikpen U-100Insulin Lispro14suppressed
Hydralazine HclHydralazine Hcl14suppressed
HydrocortisoneHydrocortisone14suppressed
LevetiracetamLevetiracetam14suppressed
Glipizide ErGlipizide13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
MyrbetriqMirabegron13suppressed
NorethindroneNorethindrone13suppressed
NystatinNystatin13suppressed
OxycontinOxycodone Hcl13suppressed
Zolpidem Tartrate ErZolpidem Tartrate13suppressed
AmoxicillinAmoxicillin12suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic12suppressed
Tresiba Flextouch U-200Insulin Degludec12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
ClotrimazoleClotrimazole11suppressed
Doxycycline HyclateDoxycycline Hyclate11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
FinasterideFinasteride11suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters11suppressed
Tramadol HclTramadol Hcl11suppressed

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