Healthcare provider profile · identity verified

Matthew Jansen, MD

Internal Medicine · MARSHFIELD, WI · NPI 1255441408

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 Calcium410122
Amlodipine BesylateAmlodipine Besylate25677
LisinoprilLisinopril21458
Metoprolol SuccinateMetoprolol Succinate20957
Losartan PotassiumLosartan Potassium20657
OmeprazoleOmeprazole19862
Levothyroxine SodiumLevothyroxine Sodium15948
HydrochlorothiazideHydrochlorothiazide15848
Metoprolol TartrateMetoprolol Tartrate14143
EliquisApixaban13026
Tamsulosin HclTamsulosin Hcl12136
AllopurinolAllopurinol11432
Warfarin SodiumWarfarin Sodium10523
Rosuvastatin CalciumRosuvastatin Calcium10128
SimvastatinSimvastatin9025
Pantoprazole SodiumPantoprazole Sodium8826
Metformin HclMetformin Hcl7625
FurosemideFurosemide7424
GabapentinGabapentin7124
Potassium ChloridePotassium Chloride6521
Alendronate SodiumAlendronate Sodium5816
Fluticasone PropionateFluticasone Propionate5520
ClopidogrelClopidogrel Bisulfate5015
Albuterol Sulfate HfaAlbuterol Sulfate4522
Sertraline HclSertraline Hcl4216
FamotidineFamotidine4011
Semglee (Yfgn) PenInsulin Glargine-Yfgn3913
EzetimibeEzetimibe37suppressed
GlipizideGlipizide3611
Pravastatin SodiumPravastatin Sodium3611
Metformin Hcl ErMetformin Hcl3513
FinasterideFinasteride3411
Trazodone HclTrazodone Hcl34suppressed
Bupropion XlBupropion Hcl32suppressed
SpironolactoneSpironolactone3211
Citalopram HbrCitalopram Hydrobromide31suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid30suppressed
AmoxicillinAmoxicillin2923
CarvedilolCarvedilol2911
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
LovastatinLovastatin28suppressed
Paroxetine HclParoxetine Hcl27suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide26suppressed
ChlorthalidoneChlorthalidone25suppressed
Hydralazine HclHydralazine Hcl25suppressed
NitroglycerinNitroglycerin2417
Tramadol HclTramadol Hcl24suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf2323
Diltiazem 24hr Er (Cd)Diltiazem Hcl23suppressed
Enalapril MaleateEnalapril Maleate21suppressed
LorazepamLorazepam19suppressed
AtenololAtenolol18suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide18suppressed
Ropinirole HclRopinirole Hcl17suppressed
MeloxicamMeloxicam16suppressed
Memantine HclMemantine Hcl16suppressed
PregabalinPregabalin16suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1611
Amitriptyline HclAmitriptyline Hcl15suppressed
Comfort Ez Pen NeedlePen Needle, Diabetic15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium15suppressed
MirtazapineMirtazapine15suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1511
OzempicSemaglutide14suppressed
SynthroidLevothyroxine Sodium14suppressed
ValacyclovirValacyclovir Hcl14suppressed
AlprazolamAlprazolam13suppressed
Diltiazem 24hr ErDiltiazem Hcl13suppressed
Doxazosin MesylateDoxazosin Mesylate13suppressed
Sumatriptan SuccinateSumatriptan Succinate13suppressed
Fosinopril SodiumFosinopril Sodium12suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
NovologInsulin Aspart11suppressed

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