Healthcare provider profile · identity verified

Erin C Davis-Delay, M.D.

Internal Medicine · WOODSTOCK, IL · NPI 1215985387

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 Calcium484151
Amlodipine BesylateAmlodipine Besylate30690
Levothyroxine SodiumLevothyroxine Sodium30390
Losartan PotassiumLosartan Potassium20567
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen20443
GabapentinGabapentin19756
LisinoprilLisinopril17851
AlprazolamAlprazolam17539
Pantoprazole SodiumPantoprazole Sodium16551
OmeprazoleOmeprazole15355
Metoprolol SuccinateMetoprolol Succinate14846
FurosemideFurosemide13644
Metoprolol TartrateMetoprolol Tartrate12732
CarvedilolCarvedilol10531
Escitalopram OxalateEscitalopram Oxalate9926
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen9311
Sertraline HclSertraline Hcl9229
Tramadol HclTramadol Hcl9222
Citalopram HbrCitalopram Hydrobromide8917
HydrochlorothiazideHydrochlorothiazide8931
LorazepamLorazepam8821
Duloxetine HclDuloxetine Hcl8526
Metformin HclMetformin Hcl8534
Rosuvastatin CalciumRosuvastatin Calcium8435
Potassium ChloridePotassium Chloride8226
PregabalinPregabalin8222
ClonazepamClonazepam8118
SimvastatinSimvastatin7924
Trazodone HclTrazodone Hcl7922
Metformin Hcl ErMetformin Hcl7825
Warfarin SodiumWarfarin Sodium7318
Montelukast SodiumMontelukast Sodium7022
Tamsulosin HclTamsulosin Hcl6822
Zolpidem TartrateZolpidem Tartrate6817
EliquisApixaban6721
ClopidogrelClopidogrel Bisulfate6319
Cyclobenzaprine HclCyclobenzaprine Hcl6219
Ondansetron OdtOndansetron5816
Fluticasone PropionateFluticasone Propionate5416
Albuterol Sulfate HfaAlbuterol Sulfate5321
Alendronate SodiumAlendronate Sodium5312
Ropinirole HclRopinirole Hcl5311
MeloxicamMeloxicam4915
Quetiapine FumarateQuetiapine Fumarate46suppressed
AllopurinolAllopurinol4213
Tizanidine HclTizanidine Hcl4111
FamotidineFamotidine40suppressed
Hydralazine HclHydralazine Hcl39suppressed
Pravastatin SodiumPravastatin Sodium3817
SpironolactoneSpironolactone3812
Amitriptyline HclAmitriptyline Hcl37suppressed
PrednisonePrednisone3711
Diltiazem 24hr Er (Cd)Diltiazem Hcl34suppressed
EzetimibeEzetimibe3413
JardianceEmpagliflozin33suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3211
Acetaminophen-CodeineAcetaminophen With Codeine31suppressed
FarxigaDapagliflozin Propanediol30suppressed
Glipizide ErGlipizide29suppressed
Solifenacin SuccinateSolifenacin Succinate29suppressed
Venlafaxine Hcl ErVenlafaxine Hcl29suppressed
MyrbetriqMirabegron2813
Paroxetine HclParoxetine Hcl28suppressed
FinasterideFinasteride27suppressed
Bupropion XlBupropion Hcl26suppressed
CelecoxibCelecoxib26suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol26suppressed
GlimepirideGlimepiride2611
OzempicSemaglutide2611
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2511
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25suppressed
PrimidonePrimidone25suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid25suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril24suppressed
CephalexinCephalexin2415
Hydroxyzine HclHydroxyzine Hcl24suppressed
DiazepamDiazepam23suppressed
Pioglitazone HclPioglitazone Hcl23suppressed
SynthroidLevothyroxine Sodium23suppressed
Sumatriptan SuccinateSumatriptan Succinate22suppressed
SymbicortBudesonide/Formoterol Fumarate22suppressed
Ventolin HfaAlbuterol Sulfate22suppressed
AtenololAtenolol21suppressed
BumetanideBumetanide21suppressed
Dicyclomine HclDicyclomine Hcl21suppressed
BaclofenBaclofen20suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine20suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
IrbesartanIrbesartan20suppressed
Terazosin HclTerazosin Hcl20suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr19suppressed
Buspirone HclBuspirone Hcl19suppressed
Ipratropium BromideIpratropium Bromide19suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1914
AripiprazoleAripiprazole18suppressed
GlipizideGlipizide18suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter18suppressed
Novolog FlexpenInsulin Aspart17suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1614
FenofibrateFenofibrate Nanocrystallized16suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate16suppressed
LovastatinLovastatin16suppressed
MethylprednisoloneMethylprednisolone1616
MounjaroTirzepatide16suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic16suppressed
AcyclovirAcyclovir15suppressed
MirtazapineMirtazapine15suppressed
TemazepamTemazepam15suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic14suppressed
SucralfateSucralfate14suppressed
ValsartanValsartan14suppressed
Clonidine HclClonidine Hcl13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Meclizine HclMeclizine Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
AzithromycinAzithromycin12suppressed
Benazepril HclBenazepril Hcl12suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12suppressed
DesloratadineDesloratadine12suppressed
FluconazoleFluconazole12suppressed
Fludrocortisone AcetateFludrocortisone Acetate12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
Tresiba Flextouch U-200Insulin Degludec12suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Diclofenac Sodium ErDiclofenac Sodium11suppressed
EszopicloneEszopiclone11suppressed
FenofibrateFenofibrate11suppressed
LamotrigineLamotrigine11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed
ValacyclovirValacyclovir 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