Healthcare provider profile · identity verified

Douglas Duchen, M.D.

Family Practice · TRUMBULL, CT · NPI 1952360885

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
Amlodipine BesylateAmlodipine Besylate15259
Rosuvastatin CalciumRosuvastatin Calcium12158
Losartan PotassiumLosartan Potassium10345
Tamsulosin HclTamsulosin Hcl10341
Metformin Hcl ErMetformin Hcl10049
Atorvastatin CalciumAtorvastatin Calcium8642
GabapentinGabapentin8338
Pantoprazole SodiumPantoprazole Sodium7330
LisinoprilLisinopril6931
Escitalopram OxalateEscitalopram Oxalate6828
GlimepirideGlimepiride6520
Pravastatin SodiumPravastatin Sodium6328
AzithromycinAzithromycin5047
FurosemideFurosemide4626
FarxigaDapagliflozin Propanediol4414
Levothyroxine SodiumLevothyroxine Sodium4421
PrednisonePrednisone4431
Metoprolol SuccinateMetoprolol Succinate4319
ClonazepamClonazepam4216
FamotidineFamotidine4223
MeloxicamMeloxicam4023
LorazepamLorazepam3921
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen3918
Tramadol HclTramadol Hcl3918
HydrochlorothiazideHydrochlorothiazide3818
JanuviaSitagliptin Phosphate3814
SpironolactoneSpironolactone3419
Trazodone HclTrazodone Hcl3414
Citalopram HbrCitalopram Hydrobromide32suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip3214
AlprazolamAlprazolam3117
EzetimibeEzetimibe3016
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
MethocarbamolMethocarbamol2811
Albuterol Sulfate HfaAlbuterol Sulfate2716
Metformin HclMetformin Hcl2716
OmeprazoleOmeprazole2612
OzempicSemaglutide26suppressed
CarvedilolCarvedilol25suppressed
Fluticasone PropionateFluticasone Propionate2516
MounjaroTirzepatide25suppressed
FinasterideFinasteride24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2412
PregabalinPregabalin2412
Doxycycline HyclateDoxycycline Hyclate2321
JardianceEmpagliflozin2312
Zolpidem TartrateZolpidem Tartrate2312
Breo ElliptaFluticasone/Vilanterol22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog22suppressed
Sildenafil CitrateSildenafil Citrate22suppressed
AllopurinolAllopurinol21suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2120
MirtazapineMirtazapine21suppressed
ValsartanValsartan2111
Bupropion XlBupropion Hcl20suppressed
Potassium ChloridePotassium Chloride20suppressed
Repatha SureclickEvolocumab20suppressed
Sertraline HclSertraline Hcl20suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2015
Diclofenac SodiumDiclofenac Sodium19suppressed
Meclizine HclMeclizine Hcl1914
Pioglitazone HclPioglitazone Hcl19suppressed
Tizanidine HclTizanidine Hcl1912
Trelegy ElliptaFluticasone/Umeclidin/Vilanter19suppressed
EliquisApixaban18suppressed
Metoprolol TartrateMetoprolol Tartrate1811
PaxlovidNirmatrelvir/Ritonavir1818
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide17suppressed
Ondansetron OdtOndansetron17suppressed
ClopidogrelClopidogrel Bisulfate1611
Mometasone FuroateMometasone Furoate16suppressed
SimvastatinSimvastatin16suppressed
Duloxetine HclDuloxetine Hcl15suppressed
IbuprofenIbuprofen15suppressed
KetoconazoleKetoconazole15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Alendronate SodiumAlendronate Sodium13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
ColchicineColchicine13suppressed
Azelastine HclAzelastine Hcl12suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12suppressed
MupirocinMupirocin12suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic12suppressed
NaproxenNaproxen12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
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