Healthcare provider profile · identity verified

Eileen Pentony, MD

Internal Medicine · DOWNERS GROVE, IL · NPI 1659437457

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 Calcium516143
Levothyroxine SodiumLevothyroxine Sodium435117
Losartan PotassiumLosartan Potassium26367
Amlodipine BesylateAmlodipine Besylate21964
HydrochlorothiazideHydrochlorothiazide19456
LisinoprilLisinopril18748
SimvastatinSimvastatin16749
OmeprazoleOmeprazole16555
Rosuvastatin CalciumRosuvastatin Calcium15545
Metformin HclMetformin Hcl13043
Metoprolol SuccinateMetoprolol Succinate12232
Tramadol HclTramadol Hcl10520
AlprazolamAlprazolam10438
GabapentinGabapentin9632
Sertraline HclSertraline Hcl9435
Alendronate SodiumAlendronate Sodium8330
Pravastatin SodiumPravastatin Sodium8024
Escitalopram OxalateEscitalopram Oxalate7322
AtenololAtenolol7219
Pantoprazole SodiumPantoprazole Sodium7224
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7020
Trazodone HclTrazodone Hcl6823
Montelukast SodiumMontelukast Sodium5915
Metformin Hcl ErMetformin Hcl5814
Metoprolol TartrateMetoprolol Tartrate5816
Fluticasone PropionateFluticasone Propionate5224
EliquisApixaban5117
Tamsulosin HclTamsulosin Hcl4914
FamotidineFamotidine4716
SynthroidLevothyroxine Sodium4312
Zolpidem TartrateZolpidem Tartrate42suppressed
OzempicSemaglutide41suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4112
Duloxetine HclDuloxetine Hcl4014
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide40suppressed
DiazepamDiazepam39suppressed
EstradiolEstradiol3913
Potassium ChloridePotassium Chloride3611
LorazepamLorazepam3512
CarvedilolCarvedilol3411
IrbesartanIrbesartan34suppressed
ClopidogrelClopidogrel Bisulfate33suppressed
MeloxicamMeloxicam3311
Venlafaxine Hcl ErVenlafaxine Hcl33suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3119
FurosemideFurosemide30suppressed
PrednisonePrednisone3022
Bupropion Hcl SrBupropion Hcl29suppressed
Enalapril MaleateEnalapril Maleate29suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl28suppressed
Glipizide ErGlipizide27suppressed
Warfarin SodiumWarfarin Sodium27suppressed
AllopurinolAllopurinol26suppressed
AzithromycinAzithromycin2421
Oxybutynin Chloride ErOxybutynin Chloride24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2220
Bupropion XlBupropion Hcl21suppressed
Doxycycline HyclateDoxycycline Hyclate2120
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2116
Triamcinolone AcetonideTriamcinolone Acetonide2014
Citalopram HbrCitalopram Hydrobromide19suppressed
PremarinEstrogens, Conjugated19suppressed
Ciprofloxacin HclCiprofloxacin Hcl1816
GlimepirideGlimepiride18suppressed
ClonazepamClonazepam17suppressed
EzetimibeEzetimibe17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril16suppressed
LansoprazoleLansoprazole16suppressed
Meclizine HclMeclizine Hcl16suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
ValacyclovirValacyclovir Hcl15suppressed
XareltoRivaroxaban15suppressed
Armour ThyroidThyroid,pork14suppressed
Donepezil HclDonepezil Hcl14suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads14suppressed
JanuviaSitagliptin Phosphate14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine13suppressed
Memantine HclMemantine Hcl13suppressed
MirtazapineMirtazapine13suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide13suppressed
TopiramateTopiramate13suppressed
AciphexRabeprazole Sodium12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
LovastatinLovastatin12suppressed
Nebivolol HclNebivolol Hcl12suppressed
SpironolactoneSpironolactone12suppressed
ValsartanValsartan12suppressed
AmoxicillinAmoxicillin11suppressed
CephalexinCephalexin11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
FluconazoleFluconazole11suppressed
Klor-Con M20Potassium Chloride11suppressed
MethylprednisoloneMethylprednisolone1111

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