Healthcare provider profile · identity verified

Aron Hall Feinberg, DO

Internal Medicine · NORTHFIELD, IL · NPI 1902967169

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 Calcium903263
Levothyroxine SodiumLevothyroxine Sodium419108
Losartan PotassiumLosartan Potassium32985
Amlodipine BesylateAmlodipine Besylate28785
Rosuvastatin CalciumRosuvastatin Calcium27885
LisinoprilLisinopril25074
SimvastatinSimvastatin24670
Metformin HclMetformin Hcl24568
Metoprolol SuccinateMetoprolol Succinate21966
OmeprazoleOmeprazole14952
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14324
AllopurinolAllopurinol13738
AlprazolamAlprazolam13329
GabapentinGabapentin12443
Tamsulosin HclTamsulosin Hcl11731
EliquisApixaban11220
Escitalopram OxalateEscitalopram Oxalate10828
FinasterideFinasteride10729
Zolpidem TartrateZolpidem Tartrate10625
HydrochlorothiazideHydrochlorothiazide9732
Trazodone HclTrazodone Hcl9329
Albuterol Sulfate HfaAlbuterol Sulfate8740
Warfarin SodiumWarfarin Sodium8713
GlimepirideGlimepiride8420
Pantoprazole SodiumPantoprazole Sodium8328
Metformin Hcl ErMetformin Hcl8127
CarvedilolCarvedilol7923
Montelukast SodiumMontelukast Sodium7522
FurosemideFurosemide7326
Pravastatin SodiumPravastatin Sodium7221
Alfuzosin Hcl ErAlfuzosin Hcl7122
Metoprolol TartrateMetoprolol Tartrate7121
SynthroidLevothyroxine Sodium7120
SpironolactoneSpironolactone6924
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6818
XareltoRivaroxaban6816
Alendronate SodiumAlendronate Sodium6617
IrbesartanIrbesartan6521
Tizanidine HclTizanidine Hcl6520
LorazepamLorazepam6414
Fluticasone PropionateFluticasone Propionate6332
Duloxetine HclDuloxetine Hcl6119
MirtazapineMirtazapine6013
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide5914
JardianceEmpagliflozin5914
Sertraline HclSertraline Hcl5822
Bupropion XlBupropion Hcl5714
Tramadol HclTramadol Hcl5720
EzetimibeEzetimibe5218
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5215
Pioglitazone HclPioglitazone Hcl5214
ClopidogrelClopidogrel Bisulfate5017
Donepezil HclDonepezil Hcl5014
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5017
Ipratropium BromideIpratropium Bromide4420
Oxybutynin Chloride ErOxybutynin Chloride4212
AtenololAtenolol4113
PregabalinPregabalin4013
FamotidineFamotidine3813
Diclofenac SodiumDiclofenac Sodium36suppressed
Potassium ChloridePotassium Chloride36suppressed
RamiprilRamipril36suppressed
Fluoxetine HclFluoxetine Hcl3512
Nifedipine ErNifedipine35suppressed
Memantine HclMemantine Hcl34suppressed
ClonazepamClonazepam3212
AzithromycinAzithromycin3129
LactuloseLactulose31suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl30suppressed
Morphine Sulfate ErMorphine Sulfate30suppressed
Solifenacin SuccinateSolifenacin Succinate30suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog29suppressed
HydroxyureaHydroxyurea28suppressed
IndapamideIndapamide28suppressed
Midodrine HclMidodrine Hcl28suppressed
DiazepamDiazepam27suppressed
Glipizide ErGlipizide27suppressed
LovastatinLovastatin27suppressed
TorsemideTorsemide27suppressed
JanuviaSitagliptin Phosphate26suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen26suppressed
Buspirone HclBuspirone Hcl2514
PrednisonePrednisone2518
ValsartanValsartan25suppressed
CelecoxibCelecoxib24suppressed
Paroxetine HclParoxetine Hcl24suppressed
ValacyclovirValacyclovir Hcl2413
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril23suppressed
Ondansetron HclOndansetron Hcl23suppressed
OzempicSemaglutide23suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2312
Glipizide-MetforminGlipizide/Metformin Hcl22suppressed
KetoconazoleKetoconazole2211
Sildenafil CitrateSildenafil Citrate22suppressed
FenofibrateFenofibrate,micronized21suppressed
LansoprazoleLansoprazole21suppressed
Oxybutynin ChlorideOxybutynin Chloride21suppressed
Propranolol Hcl ErPropranolol Hcl21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2115
Meclizine HclMeclizine Hcl20suppressed
MeloxicamMeloxicam2011
Morphine SulfateMorphine Sulfate20suppressed
Olmesartan MedoxomilOlmesartan Medoxomil20suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl20suppressed
Bisoprolol FumarateBisoprolol Fumarate19suppressed
ChlorthalidoneChlorthalidone19suppressed
PrimidonePrimidone19suppressed
AmoxicillinAmoxicillin18suppressed
Ciprofloxacin HclCiprofloxacin Hcl1815
Quetiapine FumarateQuetiapine Fumarate18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide17suppressed
PaxlovidNirmatrelvir/Ritonavir1717
TelmisartanTelmisartan17suppressed
Dicyclomine HclDicyclomine Hcl16suppressed
Divalproex Sodium ErDivalproex Sodium16suppressed
HydrocortisoneHydrocortisone1611
MetronidazoleMetronidazole16suppressed
Verapamil ErVerapamil Hcl16suppressed
Azelastine HclAzelastine Hcl15suppressed
CefadroxilCefadroxil15suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine15suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads15suppressed
Ventolin HfaAlbuterol Sulfate15suppressed
CalcitriolCalcitriol14suppressed
Oxycodone HclOxycodone Hcl14suppressed
Repatha SureclickEvolocumab14suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
EstradiolEstradiol13suppressed
Felodipine ErFelodipine13suppressed
Hydralazine HclHydralazine Hcl13suppressed
Methenamine HippurateMethenamine Hippurate13suppressed
SilodosinSilodosin13suppressed
Sodium Chloride0.9 % Sodium Chloride13suppressed
TemazepamTemazepam13suppressed
Amitriptyline HclAmitriptyline Hcl12suppressed
Clobetasol PropionateClobetasol Propionate12suppressed
ColchicineColchicine12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl12suppressed
RepaglinideRepaglinide12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
BumetanideBumetanide11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
MethylprednisoloneMethylprednisolone11suppressed
ModafinilModafinil11suppressed
NamzaricMemantine Hcl/Donepezil Hcl11suppressed
Tramadol Hcl ErTramadol Hcl11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed

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