Healthcare provider profile · identity verified

Stephen Duggan, DO

Family Practice · MIDDLETOWN, DE · NPI 1225014871

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 Calcium585167
Amlodipine BesylateAmlodipine Besylate380110
LisinoprilLisinopril33098
Losartan PotassiumLosartan Potassium32291
Rosuvastatin CalciumRosuvastatin Calcium26979
OmeprazoleOmeprazole26279
Levothyroxine SodiumLevothyroxine Sodium21565
GabapentinGabapentin18452
Metformin Hcl ErMetformin Hcl17454
HydrochlorothiazideHydrochlorothiazide12035
Metformin HclMetformin Hcl12034
Tamsulosin HclTamsulosin Hcl12039
SimvastatinSimvastatin11433
Sertraline HclSertraline Hcl10634
Metoprolol SuccinateMetoprolol Succinate10134
Albuterol Sulfate HfaAlbuterol Sulfate9132
CarvedilolCarvedilol8724
Trazodone HclTrazodone Hcl8434
GlimepirideGlimepiride7830
Tizanidine HclTizanidine Hcl7433
AtenololAtenolol6119
Duloxetine HclDuloxetine Hcl5821
Pioglitazone HclPioglitazone Hcl5815
Citalopram HbrCitalopram Hydrobromide5718
Fluoxetine HclFluoxetine Hcl4916
FurosemideFurosemide4821
Pantoprazole SodiumPantoprazole Sodium4816
AllopurinolAllopurinol4714
Montelukast SodiumMontelukast Sodium4713
Fluticasone PropionateFluticasone Propionate4619
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4415
MethylprednisoloneMethylprednisolone4236
Tramadol HclTramadol Hcl4126
Buspirone HclBuspirone Hcl4014
SynthroidLevothyroxine Sodium3912
EzetimibeEzetimibe3811
Escitalopram OxalateEscitalopram Oxalate36suppressed
Pravastatin SodiumPravastatin Sodium3614
JardianceEmpagliflozin3511
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride3515
Zolpidem TartrateZolpidem Tartrate35suppressed
FenofibrateFenofibrate Nanocrystallized34suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog34suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium33suppressed
FamotidineFamotidine3313
MeloxicamMeloxicam3213
Amitriptyline HclAmitriptyline Hcl31suppressed
Alendronate SodiumAlendronate Sodium29suppressed
Hydralazine HclHydralazine Hcl29suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide29suppressed
Meclizine HclMeclizine Hcl2912
Metoprolol TartrateMetoprolol Tartrate29suppressed
ValsartanValsartan29suppressed
MirtazapineMirtazapine28suppressed
OzempicSemaglutide28suppressed
Ondansetron HclOndansetron Hcl27suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide26suppressed
Bupropion XlBupropion Hcl26suppressed
TrulicityDulaglutide26suppressed
Donepezil HclDonepezil Hcl25suppressed
LamotrigineLamotrigine24suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl23suppressed
NystatinNystatin2314
Potassium ChloridePotassium Chloride23suppressed
AzithromycinAzithromycin2222
ClonazepamClonazepam22suppressed
ClopidogrelClopidogrel Bisulfate22suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide22suppressed
Doxycycline HyclateDoxycycline Hyclate2121
IrbesartanIrbesartan21suppressed
Mometasone FuroateMometasone Furoate2114
FinasterideFinasteride20suppressed
ColchicineColchicine19suppressed
EliquisApixaban19suppressed
Propranolol Hcl ErPropranolol Hcl19suppressed
CephalexinCephalexin1817
Cyclobenzaprine HclCyclobenzaprine Hcl18suppressed
Ipratropium BromideIpratropium Bromide17suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic17suppressed
SpironolactoneSpironolactone16suppressed
ValacyclovirValacyclovir Hcl16suppressed
AcyclovirAcyclovir15suppressed
Dicyclomine HclDicyclomine Hcl15suppressed
Glipizide ErGlipizide15suppressed
JanuviaSitagliptin Phosphate15suppressed
XareltoRivaroxaban15suppressed
AlprazolamAlprazolam14suppressed
Benazepril HclBenazepril Hcl14suppressed
CelecoxibCelecoxib14suppressed
Hydroxyzine PamoateHydroxyzine Pamoate14suppressed
KetoconazoleKetoconazole14suppressed
LinzessLinaclotide14suppressed
Propranolol HclPropranolol Hcl14suppressed
Terazosin HclTerazosin Hcl14suppressed
Clonidine HclClonidine Hcl13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Memantine HclMemantine Hcl13suppressed
Paroxetine HclParoxetine Hcl13suppressed
PregabalinPregabalin13suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter13suppressed
ChlorthalidoneChlorthalidone12suppressed
NaproxenNaproxen12suppressed
TopiramateTopiramate12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
Arnuity ElliptaFluticasone Furoate11suppressed
Diltiazem 24hr Er (La)Diltiazem Hcl11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
Insulin Aspart FlexpenInsulin Aspart11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed
Ventolin HfaAlbuterol Sulfate11suppressed

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