Healthcare provider profile · identity verified

Stephen P Denq, M.D.

Internal Medicine · ALHAMBRA, CA · NPI 1568533073

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 Calcium379120
Amlodipine BesylateAmlodipine Besylate33896
MeloxicamMeloxicam23666
Levothyroxine SodiumLevothyroxine Sodium20250
HydrochlorothiazideHydrochlorothiazide19152
OmeprazoleOmeprazole18747
Metformin HclMetformin Hcl17756
Losartan PotassiumLosartan Potassium17644
Montelukast SodiumMontelukast Sodium13538
SimvastatinSimvastatin12232
LisinoprilLisinopril12041
Tamsulosin HclTamsulosin Hcl11429
GabapentinGabapentin10126
GlipizideGlipizide8526
AtenololAtenolol6519
Alendronate SodiumAlendronate Sodium6216
AzithromycinAzithromycin5744
Zolpidem TartrateZolpidem Tartrate5726
Metoprolol SuccinateMetoprolol Succinate5411
IbuprofenIbuprofen5225
Triamcinolone AcetonideTriamcinolone Acetonide4827
Fluticasone PropionateFluticasone Propionate4514
FinasterideFinasteride44suppressed
ClopidogrelClopidogrel Bisulfate43suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate39suppressed
Pioglitazone HclPioglitazone Hcl3913
Albuterol Sulfate HfaAlbuterol Sulfate3814
PrednisonePrednisone3618
AlprazolamAlprazolam35suppressed
Sildenafil CitrateSildenafil Citrate34suppressed
FenofibrateFenofibrate Nanocrystallized3313
FurosemideFurosemide33suppressed
ValsartanValsartan33suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride30suppressed
Pantoprazole SodiumPantoprazole Sodium30suppressed
Azelastine HclAzelastine Hcl29suppressed
Hydralazine HclHydralazine Hcl29suppressed
Olmesartan MedoxomilOlmesartan Medoxomil29suppressed
Donepezil HclDonepezil Hcl26suppressed
FamotidineFamotidine26suppressed
JanuviaSitagliptin Phosphate26suppressed
Clonidine HclClonidine Hcl24suppressed
EzetimibeEzetimibe24suppressed
Potassium ChloridePotassium Chloride23suppressed
Ranolazine ErRanolazine23suppressed
HydrocortisoneHydrocortisone2212
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
NaproxenNaproxen2112
LactuloseLactulose19suppressed
Hydroxyzine HclHydroxyzine Hcl1812
Icosapent EthylIcosapent Ethyl18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
Diclofenac SodiumDiclofenac Sodium1711
Esomeprazole MagnesiumEsomeprazole Magnesium17suppressed
VascepaIcosapent Ethyl17suppressed
Sertraline HclSertraline Hcl16suppressed
CelecoxibCelecoxib15suppressed
EliquisApixaban15suppressed
GemfibrozilGemfibrozil15suppressed
OzempicSemaglutide15suppressed
Meclizine HclMeclizine Hcl14suppressed
Terbinafine HclTerbinafine Hcl14suppressed
AllopurinolAllopurinol13suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan13suppressed
CarvedilolCarvedilol13suppressed
ClotrimazoleClotrimazole13suppressed
Sure Comfort Pen NeedlePen Needle, Diabetic13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1212
CyclosporineCyclosporine12suppressed
Semglee (Yfgn) PenInsulin Glargine-Yfgn12suppressed
SucralfateSucralfate12suppressed
Terazosin HclTerazosin Hcl12suppressed
Tramadol HclTramadol Hcl12suppressed
XareltoRivaroxaban12suppressed
AmoxicillinAmoxicillin11suppressed
CephalexinCephalexin11suppressed
Chlorhexidine GluconateChlorhexidine Gluconate11suppressed
CiclopiroxCiclopirox Olamine11suppressed
DutasterideDutasteride11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
Memantine HclMemantine 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