Healthcare provider profile · identity verified

Joseph Puskar, M.D.

Family Practice · FOND DU LAC, WI · NPI 1659333482

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 Calcium14545
Levothyroxine SodiumLevothyroxine Sodium10831
Amlodipine BesylateAmlodipine Besylate9433
Rosuvastatin CalciumRosuvastatin Calcium9329
Metformin HclMetformin Hcl8928
Albuterol Sulfate HfaAlbuterol Sulfate8619
LisinoprilLisinopril8128
Losartan PotassiumLosartan Potassium7427
OmeprazoleOmeprazole5122
Pantoprazole SodiumPantoprazole Sodium4711
ChlorthalidoneChlorthalidone4420
SimvastatinSimvastatin4222
Alendronate SodiumAlendronate Sodium4112
HydrochlorothiazideHydrochlorothiazide4015
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters3918
Metformin Hcl ErMetformin Hcl3715
Tamsulosin HclTamsulosin Hcl36suppressed
GabapentinGabapentin34suppressed
ClopidogrelClopidogrel Bisulfate32suppressed
Pravastatin SodiumPravastatin Sodium3213
FurosemideFurosemide31suppressed
EzetimibeEzetimibe28suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2814
Metoprolol TartrateMetoprolol Tartrate2815
Fluoxetine HclFluoxetine Hcl27suppressed
OzempicSemaglutide27suppressed
Sertraline HclSertraline Hcl2711
Metoprolol SuccinateMetoprolol Succinate23suppressed
SynthroidLevothyroxine Sodium22suppressed
Trazodone HclTrazodone Hcl21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol20suppressed
Amitriptyline HclAmitriptyline Hcl19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl19suppressed
JardianceEmpagliflozin18suppressed
LansoprazoleLansoprazole18suppressed
Warfarin SodiumWarfarin Sodium18suppressed
Duloxetine HclDuloxetine Hcl17suppressed
GlimepirideGlimepiride17suppressed
PregabalinPregabalin17suppressed
LidocaineLidocaine16suppressed
Tramadol HclTramadol Hcl16suppressed
AllopurinolAllopurinol14suppressed
EliquisApixaban14suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Meclizine HclMeclizine Hcl13suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
Varenicline TartrateVarenicline Tartrate12suppressed
FinasterideFinasteride11suppressed
Fluticasone PropionateFluticasone Propionate11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
Memantine HclMemantine 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