Healthcare provider profile · identity verified

David Fenton, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Geriatric Medicine · HARTFORD, CT · NPI 1669577540

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 Fenton, MD received $41.32 in general payments during 2025 across 2 reported records.

Neurocrine BioSciences, Inc. accounted for 53.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 513 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$41.32

2 reported records · 2 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
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $21.9753.2%12025
PFIZER INC. Unresolved — no canonical attribution shown $19.3546.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$41.322

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
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $21.97 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $19.35 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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
513 60

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
Trazodone HclTrazodone Hcl686114
Atorvastatin CalciumAtorvastatin Calcium595110
EliquisApixaban51360
Amlodipine BesylateAmlodipine Besylate36663
Levothyroxine SodiumLevothyroxine Sodium35564
MirtazapineMirtazapine35562
Escitalopram OxalateEscitalopram Oxalate29856
GabapentinGabapentin29863
Sertraline HclSertraline Hcl25639
Pantoprazole SodiumPantoprazole Sodium22849
FurosemideFurosemide20344
LisinoprilLisinopril20133
Metoprolol SuccinateMetoprolol Succinate19939
JardianceEmpagliflozin19725
Metoprolol TartrateMetoprolol Tartrate18827
Potassium ChloridePotassium Chloride18833
Metformin HclMetformin Hcl18234
Tamsulosin HclTamsulosin Hcl15727
LactuloseLactulose15020
XareltoRivaroxaban14411
Quetiapine FumarateQuetiapine Fumarate13126
FamotidineFamotidine11626
ClopidogrelClopidogrel Bisulfate11416
Duloxetine HclDuloxetine Hcl11417
TorsemideTorsemide11317
Divalproex SodiumDivalproex Sodium10713
Losartan PotassiumLosartan Potassium10522
LinzessLinaclotide10214
SpironolactoneSpironolactone9418
Memantine HclMemantine Hcl9215
Bupropion XlBupropion Hcl9012
BaclofenBaclofen8615
CarvedilolCarvedilol8320
Rosuvastatin CalciumRosuvastatin Calcium7716
PrednisonePrednisone7619
OmeprazoleOmeprazole7522
Buspirone HclBuspirone Hcl7415
FinasterideFinasteride7413
Donepezil HclDonepezil Hcl7314
Fluoxetine HclFluoxetine Hcl7314
OlanzapineOlanzapine7213
Diclofenac SodiumDiclofenac Sodium6917
Carbidopa-LevodopaCarbidopa/Levodopa6611
MyrbetriqMirabegron65suppressed
LatanoprostLatanoprost6113
LevetiracetamLevetiracetam53suppressed
EzetimibeEzetimibe50suppressed
Labetalol HclLabetalol Hcl49suppressed
Fluticasone PropionateFluticasone Propionate4820
Citalopram HbrCitalopram Hydrobromide47suppressed
AllopurinolAllopurinol4612
LamotrigineLamotrigine46suppressed
AripiprazoleAripiprazole44suppressed
HydrochlorothiazideHydrochlorothiazide43suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog43suppressed
Hydralazine HclHydralazine Hcl42suppressed
SimvastatinSimvastatin41suppressed
AtenololAtenolol39suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate39suppressed
RexultiBrexpiprazole39suppressed
JanuviaSitagliptin Phosphate38suppressed
Ondansetron HclOndansetron Hcl3826
Amiodarone HclAmiodarone Hcl3711
Midodrine HclMidodrine Hcl37suppressed
RisperidoneRisperidone37suppressed
Tizanidine HclTizanidine Hcl37suppressed
BumetanideBumetanide34suppressed
LorazepamLorazepam34suppressed
TradjentaLinagliptin33suppressed
DigoxinDigoxin31suppressed
PrimidonePrimidone31suppressed
Alendronate SodiumAlendronate Sodium30suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl30suppressed
Lurasidone HclLurasidone Hcl30suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc29suppressed
EstradiolEstradiol29suppressed
Meclizine HclMeclizine Hcl29suppressed
LansoprazoleLansoprazole28suppressed
MethimazoleMethimazole27suppressed
Chlorhexidine GluconateChlorhexidine Gluconate26suppressed
Doxycycline HyclateDoxycycline Hyclate2617
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate2622
Methenamine HippurateMethenamine Hippurate26suppressed
MesalamineMesalamine24suppressed
Clonidine HclClonidine Hcl23suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn23suppressed
MeloxicamMeloxicam23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2211
ChlorthalidoneChlorthalidone22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended22suppressed
Propranolol HclPropranolol Hcl22suppressed
Dicyclomine HclDicyclomine Hcl21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
Kapspargo SprinkleMetoprolol Succinate21suppressed
Oxybutynin Chloride ErOxybutynin Chloride21suppressed
RytaryCarbidopa/Levodopa21suppressed
Bupropion Hcl SrBupropion Hcl20suppressed
Hydroxyzine HclHydroxyzine Hcl20suppressed
IrbesartanIrbesartan20suppressed
Memantine Hcl ErMemantine Hcl20suppressed
Oxybutynin ChlorideOxybutynin Chloride20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate19suppressed
Warfarin SodiumWarfarin Sodium19suppressed
XifaxanRifaximin19suppressed
Enalapril MaleateEnalapril Maleate18suppressed
KetoconazoleKetoconazole18suppressed
LantusInsulin Glargine,hum.Rec.Anlog18suppressed
ScopolamineScopolamine18suppressed
VascepaIcosapent Ethyl18suppressed
Albuterol Sulfate HfaAlbuterol Sulfate1714
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
CeftriaxoneCeftriaxone Sodium1711
LevofloxacinLevofloxacin17suppressed
Nifedipine ErNifedipine17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
Albuterol SulfateAlbuterol Sulfate1614
OzempicSemaglutide16suppressed
RivastigmineRivastigmine16suppressed
SucralfateSucralfate16suppressed
AnastrozoleAnastrozole15suppressed
Calcium AcetateCalcium Acetate15suppressed
Ciprofloxacin-D5wCiprofloxacin In 5 % Dextrose15suppressed
Dextrose 5%-0.9% NaclDextrose 5 % And 0.9 % Nacl15suppressed
OxcarbazepineOxcarbazepine15suppressed
Repatha SyringeEvolocumab15suppressed
Solifenacin SuccinateSolifenacin Succinate15suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim15suppressed
Timolol MaleateTimolol Maleate15suppressed
Haloperidol LactateHaloperidol Lactate14suppressed
NystatinNystatin14suppressed
Olmesartan MedoxomilOlmesartan Medoxomil14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
CephalexinCephalexin13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
MethocarbamolMethocarbamol13suppressed
MetronidazoleMetronidazole13suppressed
Mirabegron ErMirabegron13suppressed
Montelukast SodiumMontelukast Sodium13suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
Raloxifene HclRaloxifene Hcl13suppressed
Ranolazine ErRanolazine13suppressed
Ropinirole HclRopinirole Hcl13suppressed
UrsodiolUrsodiol13suppressed
HydroxyureaHydroxyurea12suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro12suppressed
Terazosin HclTerazosin Hcl12suppressed
ZonisamideZonisamide12suppressed
Brimonidine TartrateBrimonidine Tartrate11suppressed
BudesonideBudesonide11suppressed
ColchicineColchicine11suppressed
Dalfampridine ErDalfampridine11suppressed
FarxigaDapagliflozin Propanediol11suppressed
Fluvoxamine MaleateFluvoxamine Maleate11suppressed
Nebivolol HclNebivolol Hcl11suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters11suppressed
Prazosin HclPrazosin Hcl11suppressed
Vancomycin HclVancomycin 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 $41.32 · 2 records Neurocrine BioSciences, Inc. INGREZZA, VYNDAQEL 1
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