Healthcare provider profile · identity verified

Joseph Sadowski, MD

Family Practice · CHICAGO, IL · NPI 1790737849

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
AlprazolamAlprazolam33858
Atorvastatin CalciumAtorvastatin Calcium27681
Levothyroxine SodiumLevothyroxine Sodium22058
Amlodipine BesylateAmlodipine Besylate18748
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16734
Tamsulosin HclTamsulosin Hcl15235
Metformin HclMetformin Hcl15040
Metoprolol SuccinateMetoprolol Succinate13937
Losartan PotassiumLosartan Potassium11937
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11531
Pantoprazole SodiumPantoprazole Sodium11333
Tramadol HclTramadol Hcl11027
FurosemideFurosemide10828
LisinoprilLisinopril8928
Albuterol Sulfate HfaAlbuterol Sulfate8424
EliquisApixaban8315
Metoprolol TartrateMetoprolol Tartrate8122
PrednisonePrednisone6744
BaclofenBaclofen6614
GabapentinGabapentin6614
AllopurinolAllopurinol6521
LorazepamLorazepam6214
Rosuvastatin CalciumRosuvastatin Calcium5413
AzithromycinAzithromycin5241
ClopidogrelClopidogrel Bisulfate5213
MeloxicamMeloxicam5214
Pioglitazone HclPioglitazone Hcl5114
FamotidineFamotidine5016
Potassium ChloridePotassium Chloride5016
Zolpidem TartrateZolpidem Tartrate5011
CelecoxibCelecoxib4913
Acetaminophen-CodeineAcetaminophen With Codeine46suppressed
DiazepamDiazepam46suppressed
TemazepamTemazepam4511
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4413
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4220
Cyclobenzaprine HclCyclobenzaprine Hcl40suppressed
Meclizine HclMeclizine Hcl39suppressed
Metformin Hcl ErMetformin Hcl36suppressed
CarvedilolCarvedilol35suppressed
Duloxetine HclDuloxetine Hcl35suppressed
SimvastatinSimvastatin3512
Triamcinolone AcetonideTriamcinolone Acetonide3413
ClonazepamClonazepam33suppressed
IbuprofenIbuprofen33suppressed
OmeprazoleOmeprazole32suppressed
Citalopram HbrCitalopram Hydrobromide31suppressed
Oxybutynin Chloride ErOxybutynin Chloride31suppressed
Terazosin HclTerazosin Hcl31suppressed
AtenololAtenolol30suppressed
Venlafaxine HclVenlafaxine Hcl30suppressed
Fluticasone PropionateFluticasone Propionate29suppressed
HydrochlorothiazideHydrochlorothiazide29suppressed
Escitalopram OxalateEscitalopram Oxalate28suppressed
Quetiapine FumarateQuetiapine Fumarate28suppressed
Ciprofloxacin HclCiprofloxacin Hcl2720
Dicyclomine HclDicyclomine Hcl27suppressed
LevofloxacinLevofloxacin2718
GlipizideGlipizide26suppressed
Pravastatin SodiumPravastatin Sodium26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl26suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine25suppressed
EntrestoSacubitril/Valsartan25suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate24suppressed
TestosteroneTestosterone24suppressed
AmoxicillinAmoxicillin2313
Buspirone HclBuspirone Hcl23suppressed
OzempicSemaglutide23suppressed
Propranolol HclPropranolol Hcl23suppressed
Solifenacin SuccinateSolifenacin Succinate23suppressed
SucralfateSucralfate23suppressed
Trazodone HclTrazodone Hcl22suppressed
XareltoRivaroxaban22suppressed
IrbesartanIrbesartan21suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid21suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl20suppressed
JardianceEmpagliflozin20suppressed
Paroxetine HclParoxetine Hcl20suppressed
Hydralazine HclHydralazine Hcl19suppressed
LovastatinLovastatin19suppressed
SynthroidLevothyroxine Sodium18suppressed
Sumatriptan SuccinateSumatriptan Succinate17suppressed
Memantine HclMemantine Hcl16suppressed
TradjentaLinagliptin16suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone15suppressed
EzetimibeEzetimibe15suppressed
MetolazoneMetolazone15suppressed
MirtazapineMirtazapine15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide14suppressed
Propranolol Hcl ErPropranolol Hcl14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
Warfarin SodiumWarfarin Sodium14suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
FarxigaDapagliflozin Propanediol13suppressed
GlimepirideGlimepiride13suppressed
LevetiracetamLevetiracetam13suppressed
Matzim LaDiltiazem Hcl13suppressed
NaproxenNaproxen13suppressed
Pioglitazone-MetforminPioglitazone Hcl/Metformin Hcl13suppressed
CephalexinCephalexin12suppressed
CimetidineCimetidine12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12suppressed
Tresiba Flextouch U-100Insulin Degludec12suppressed
BrilintaTicagrelor11suppressed
Clonidine HclClonidine Hcl11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Enalapril-HydrochlorothiazideEnalapril/Hydrochlorothiazide11suppressed
Fluoxetine HclFluoxetine Hcl11suppressed
Incruse ElliptaUmeclidinium Bromide11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
TelmisartanTelmisartan11suppressed

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