Healthcare provider profile · identity verified

Chester Nay, PA-C

Physician Assistant · VANDALIA, IL · NPI 1427418607

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 Calcium19246
Albuterol Sulfate HfaAlbuterol Sulfate13635
Levothyroxine SodiumLevothyroxine Sodium13229
LisinoprilLisinopril12934
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9828
GabapentinGabapentin8819
EliquisApixaban7313
Metoprolol SuccinateMetoprolol Succinate7221
Potassium ChloridePotassium Chloride7116
Amlodipine BesylateAmlodipine Besylate7021
SimvastatinSimvastatin7016
Pantoprazole SodiumPantoprazole Sodium6515
FurosemideFurosemide6319
CarvedilolCarvedilol6219
Metformin Hcl ErMetformin Hcl6215
OmeprazoleOmeprazole6216
MeloxicamMeloxicam6115
Metformin HclMetformin Hcl5415
LovastatinLovastatin5316
Rosuvastatin CalciumRosuvastatin Calcium5215
Losartan PotassiumLosartan Potassium5114
Tamsulosin HclTamsulosin Hcl5013
Duloxetine HclDuloxetine Hcl4713
FamotidineFamotidine4711
HydrochlorothiazideHydrochlorothiazide4613
PregabalinPregabalin4512
Citalopram HbrCitalopram Hydrobromide44suppressed
Tramadol HclTramadol Hcl4411
AllopurinolAllopurinol43suppressed
Buspirone HclBuspirone Hcl43suppressed
Montelukast SodiumMontelukast Sodium4311
Fluoxetine HclFluoxetine Hcl4213
Tizanidine HclTizanidine Hcl4212
Lantus SolostarInsulin Glargine,hum.Rec.Anlog36suppressed
Divalproex SodiumDivalproex Sodium34suppressed
PrednisonePrednisone3425
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog33suppressed
ClopidogrelClopidogrel Bisulfate3314
JardianceEmpagliflozin3312
SpironolactoneSpironolactone29suppressed
Breo ElliptaFluticasone/Vilanterol28suppressed
ScopolamineScopolamine27suppressed
TrulicityDulaglutide27suppressed
Lurasidone HclLurasidone Hcl24suppressed
OlanzapineOlanzapine24suppressed
Pravastatin SodiumPravastatin Sodium24suppressed
Diclofenac SodiumDiclofenac Sodium23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter23suppressed
Alendronate SodiumAlendronate Sodium22suppressed
Doxycycline HyclateDoxycycline Hyclate2217
Glipizide ErGlipizide22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
FarxigaDapagliflozin Propanediol21suppressed
Fluticasone PropionateFluticasone Propionate21suppressed
MupirocinMupirocin20suppressed
BaclofenBaclofen18suppressed
Bupropion XlBupropion Hcl18suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium18suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol18suppressed
Sertraline HclSertraline Hcl18suppressed
AlprazolamAlprazolam17suppressed
Escitalopram OxalateEscitalopram Oxalate17suppressed
GlipizideGlipizide17suppressed
Metoprolol TartrateMetoprolol Tartrate17suppressed
Propranolol HclPropranolol Hcl17suppressed
TradjentaLinagliptin17suppressed
Ventolin HfaAlbuterol Sulfate17suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1614
EzetimibeEzetimibe16suppressed
Incruse ElliptaUmeclidinium Bromide16suppressed
MirtazapineMirtazapine16suppressed
MyrbetriqMirabegron16suppressed
Acetaminophen-CodeineAcetaminophen With Codeine15suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1514
Hydroxyzine HclHydroxyzine Hcl15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Ropinirole HclRopinirole Hcl15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
CelecoxibCelecoxib14suppressed
Combivent RespimatIpratropium/Albuterol Sulfate14suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1412
NitroglycerinNitroglycerin14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Benztropine MesylateBenztropine Mesylate13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
OzempicSemaglutide13suppressed
Trazodone HclTrazodone Hcl13suppressed
Carbamazepine ErCarbamazepine12suppressed
EntrestoSacubitril/Valsartan12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12suppressed
LubiprostoneLubiprostone12suppressed
SucralfateSucralfate12suppressed
TopiramateTopiramate12suppressed
AtenololAtenolol11suppressed
CephalexinCephalexin11suppressed
LactuloseLactulose11suppressed
MounjaroTirzepatide11suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic11suppressed

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