Healthcare provider profile · identity verified

Arthur J Daigneault, MD

Internal Medicine · LAGUNA HILLS, CA · NPI 1609845361

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 Calcium503141
Losartan PotassiumLosartan Potassium427112
Amlodipine BesylateAmlodipine Besylate36098
Levothyroxine SodiumLevothyroxine Sodium32492
SimvastatinSimvastatin24869
Metformin HclMetformin Hcl22459
Tamsulosin HclTamsulosin Hcl19365
AlprazolamAlprazolam18743
Pantoprazole SodiumPantoprazole Sodium17551
GabapentinGabapentin14736
Metoprolol SuccinateMetoprolol Succinate13538
FurosemideFurosemide13244
LisinoprilLisinopril12336
OmeprazoleOmeprazole11936
AzithromycinAzithromycin10685
Escitalopram OxalateEscitalopram Oxalate10532
Metoprolol TartrateMetoprolol Tartrate10226
SynthroidLevothyroxine Sodium9129
FinasterideFinasteride9029
Rosuvastatin CalciumRosuvastatin Calcium9029
AtenololAtenolol8421
EliquisApixaban8319
Trazodone HclTrazodone Hcl8223
AllopurinolAllopurinol7820
Diltiazem 24hr Er (Cd)Diltiazem Hcl7821
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7721
Alendronate SodiumAlendronate Sodium7124
Albuterol Sulfate HfaAlbuterol Sulfate6931
HydrochlorothiazideHydrochlorothiazide6920
GlimepirideGlimepiride6318
JanuviaSitagliptin Phosphate6212
Sertraline HclSertraline Hcl6212
CarvedilolCarvedilol6016
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6018
Metformin Hcl ErMetformin Hcl5915
ClopidogrelClopidogrel Bisulfate5817
Ciprofloxacin HclCiprofloxacin Hcl5542
LovastatinLovastatin5415
Zolpidem TartrateZolpidem Tartrate5318
Hydralazine HclHydralazine Hcl5212
TemazepamTemazepam5113
Pravastatin SodiumPravastatin Sodium4914
Tramadol HclTramadol Hcl4919
Paroxetine HclParoxetine Hcl42suppressed
XareltoRivaroxaban41suppressed
EzetimibeEzetimibe4012
Potassium ChloridePotassium Chloride3813
Warfarin SodiumWarfarin Sodium3811
FamotidineFamotidine3711
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide35suppressed
ValsartanValsartan35suppressed
Oxybutynin Chloride ErOxybutynin Chloride3411
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide34suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
MethylprednisoloneMethylprednisolone3021
Fluticasone PropionateFluticasone Propionate2811
Bupropion XlBupropion Hcl27suppressed
Donepezil HclDonepezil Hcl27suppressed
MeloxicamMeloxicam27suppressed
Sildenafil CitrateSildenafil Citrate27suppressed
Propranolol Hcl ErPropranolol Hcl26suppressed
LorazepamLorazepam24suppressed
Diltiazem 24hr ErDiltiazem Hcl23suppressed
Duloxetine HclDuloxetine Hcl23suppressed
FenofibrateFenofibrate,micronized23suppressed
AcyclovirAcyclovir22suppressed
MirtazapineMirtazapine21suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid21suppressed
PaxlovidNirmatrelvir/Ritonavir2020
Pioglitazone HclPioglitazone Hcl20suppressed
Sumatriptan SuccinateSumatriptan Succinate20suppressed
Benazepril HclBenazepril Hcl19suppressed
FenofibrateFenofibrate Nanocrystallized19suppressed
OzempicSemaglutide19suppressed
Venlafaxine Hcl ErVenlafaxine Hcl19suppressed
Wixela InhubFluticasone Propion/Salmeterol19suppressed
NystatinNystatin18suppressed
Ondansetron HclOndansetron Hcl18suppressed
ClonazepamClonazepam16suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl16suppressed
Dicyclomine HclDicyclomine Hcl16suppressed
LevetiracetamLevetiracetam16suppressed
MyrbetriqMirabegron16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
CelecoxibCelecoxib15suppressed
DigoxinDigoxin15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
GlipizideGlipizide14suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate14suppressed
Terazosin HclTerazosin Hcl14suppressed
Tizanidine HclTizanidine Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
Doxepin HclDoxepin Hcl13suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
Ondansetron OdtOndansetron13suppressed
CalcitriolCalcitriol12suppressed
Clonidine HclClonidine Hcl12suppressed
DescovyEmtricitabine/Tenofov Alafenam12suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
EstradiolEstradiol12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
Meclizine HclMeclizine Hcl12suppressed
Memantine HclMemantine Hcl12suppressed
Montelukast SodiumMontelukast Sodium12suppressed
Nifedipine ErNifedipine12suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst12suppressed
Ammonium LactateAmmonium Lactate11suppressed
ClonidineClonidine11suppressed
FenofibrateFenofibrate11suppressed
TobramycinTobramycin11suppressed
TrintellixVortioxetine Hydrobromide11suppressed

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