Healthcare provider profile · identity verified

David Todd Ennis, MD

Allopathic & Osteopathic Physicians|Internal Medicine · YORKTOWN HEIGHTS, NY · NPI 1306839592

Profile state: payments and partd 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

CMS Open Payments records show David Todd Ennis, MD received $23.26 in general payments during 2025 across 1 reported records.

Regeneron Healthcare Solutions, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$23.26

1 reported records · 1 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $23.26100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$23.261

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
DUPIXENT
Normalized: dupixent
Biological Regeneron Healthcare Solutions, Inc. $23.26 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Losartan PotassiumLosartan Potassium18261
Atorvastatin CalciumAtorvastatin Calcium15871
HydrochlorothiazideHydrochlorothiazide14550
Amlodipine BesylateAmlodipine Besylate13956
Rosuvastatin CalciumRosuvastatin Calcium12245
LisinoprilLisinopril8028
Levothyroxine SodiumLevothyroxine Sodium7833
PrednisonePrednisone7441
SimvastatinSimvastatin6926
Metoprolol SuccinateMetoprolol Succinate6020
EliquisApixaban5316
Metformin Hcl ErMetformin Hcl5116
Zolpidem TartrateZolpidem Tartrate4918
Escitalopram OxalateEscitalopram Oxalate4816
AlprazolamAlprazolam4723
OmeprazoleOmeprazole4321
AzithromycinAzithromycin4133
Fluticasone PropionateFluticasone Propionate4023
RamiprilRamipril3612
Sertraline HclSertraline Hcl3613
SynthroidLevothyroxine Sodium3516
Albuterol Sulfate HfaAlbuterol Sulfate3417
Metformin HclMetformin Hcl3312
Tamsulosin HclTamsulosin Hcl3212
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide31suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide30suppressed
NaproxenNaproxen2921
AllopurinolAllopurinol2811
Montelukast SodiumMontelukast Sodium2612
FurosemideFurosemide2411
Pantoprazole SodiumPantoprazole Sodium23suppressed
FamotidineFamotidine2111
CarvedilolCarvedilol20suppressed
OzempicSemaglutide20suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1815
Ciprofloxacin HclCiprofloxacin Hcl1817
Duloxetine HclDuloxetine Hcl18suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
ValsartanValsartan17suppressed
JanuviaSitagliptin Phosphate16suppressed
CefdinirCefdinir1513
GabapentinGabapentin15suppressed
ColchicineColchicine14suppressed
DiazepamDiazepam1411
JanumetSitagliptin Phos/Metformin Hcl14suppressed
MirtazapineMirtazapine14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
Pravastatin SodiumPravastatin Sodium14suppressed
MeloxicamMeloxicam13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
Nebivolol HclNebivolol Hcl12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst12suppressed
AtenololAtenolol11suppressed
CefuroximeCefuroxime Axetil11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
SpironolactoneSpironolactone11suppressed
Tramadol HclTramadol Hcl11suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid11suppressed

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 $23.26 · 1 records Regeneron Healthcare Solutions, Inc. DUPIXENT
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