Healthcare provider profile · identity verified

Long Nguyen, DO

Family Practice · DE PERE, WI · NPI 1962817700

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 Calcium33897
Amlodipine BesylateAmlodipine Besylate26087
LisinoprilLisinopril20668
Losartan PotassiumLosartan Potassium19071
Metoprolol SuccinateMetoprolol Succinate18655
OmeprazoleOmeprazole17062
Levothyroxine SodiumLevothyroxine Sodium15444
GabapentinGabapentin14756
Rosuvastatin CalciumRosuvastatin Calcium14646
Montelukast SodiumMontelukast Sodium12873
Metoprolol TartrateMetoprolol Tartrate12335
Tamsulosin HclTamsulosin Hcl12044
EliquisApixaban11425
Metformin Hcl ErMetformin Hcl11134
FurosemideFurosemide10836
Trazodone HclTrazodone Hcl10841
SimvastatinSimvastatin9228
Glipizide ErGlipizide9021
Quetiapine FumarateQuetiapine Fumarate8120
Cyclobenzaprine HclCyclobenzaprine Hcl8062
Fluticasone PropionateFluticasone Propionate7658
Duloxetine HclDuloxetine Hcl7530
HydrochlorothiazideHydrochlorothiazide7530
PrednisonePrednisone7365
Pantoprazole SodiumPantoprazole Sodium6827
Potassium ChloridePotassium Chloride6827
JardianceEmpagliflozin6418
ValsartanValsartan6122
Metformin HclMetformin Hcl5920
Albuterol Sulfate HfaAlbuterol Sulfate5731
GlipizideGlipizide5717
Hydralazine HclHydralazine Hcl5714
Azelastine HclAzelastine Hcl5653
ClopidogrelClopidogrel Bisulfate5515
FamotidineFamotidine5521
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5516
Pravastatin SodiumPravastatin Sodium5516
Amlodipine-ValsartanAmlodipine Besylate/Valsartan5320
Diclofenac SodiumDiclofenac Sodium5129
MirtazapineMirtazapine4817
Isosorbide Mononitrate ErIsosorbide Mononitrate4712
Triamcinolone AcetonideTriamcinolone Acetonide4742
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4623
Amitriptyline HclAmitriptyline Hcl4017
NystatinNystatin4012
Buspirone HclBuspirone Hcl3913
Escitalopram OxalateEscitalopram Oxalate3912
Lantus SolostarInsulin Glargine,hum.Rec.Anlog38suppressed
FinasterideFinasteride3711
Trelegy ElliptaFluticasone/Umeclidin/Vilanter37suppressed
MeloxicamMeloxicam3518
Sertraline HclSertraline Hcl3516
TopiramateTopiramate3513
Tramadol HclTramadol Hcl35suppressed
Hydroxyzine HclHydroxyzine Hcl3414
OzempicSemaglutide3414
Warfarin SodiumWarfarin Sodium34suppressed
Bupropion XlBupropion Hcl33suppressed
AmoxicillinAmoxicillin3232
CarvedilolCarvedilol31suppressed
DigoxinDigoxin31suppressed
Tizanidine HclTizanidine Hcl30suppressed
Fluoxetine HclFluoxetine Hcl29suppressed
MethocarbamolMethocarbamol2915
Oxycodone HclOxycodone Hcl29suppressed
SpironolactoneSpironolactone2913
AllopurinolAllopurinol2813
LinzessLinaclotide28suppressed
Alendronate SodiumAlendronate Sodium26suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate26suppressed
LidocaineLidocaine25suppressed
Propranolol HclPropranolol Hcl25suppressed
Citalopram HbrCitalopram Hydrobromide24suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol2411
Ropinirole HclRopinirole Hcl24suppressed
LovastatinLovastatin23suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril22suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
BumetanideBumetanide21suppressed
MyrbetriqMirabegron21suppressed
CephalexinCephalexin2019
LevetiracetamLevetiracetam20suppressed
PaxlovidNirmatrelvir/Ritonavir2020
XareltoRivaroxaban20suppressed
PrimidonePrimidone19suppressed
AripiprazoleAripiprazole18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
Nifedipine ErNifedipine18suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
Carbidopa-LevodopaCarbidopa/Levodopa17suppressed
Insulin Aspart FlexpenInsulin Aspart17suppressed
SynthroidLevothyroxine Sodium17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
Donepezil HclDonepezil Hcl16suppressed
FenofibrateFenofibrate16suppressed
Propranolol Hcl ErPropranolol Hcl15suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1515
Diltiazem 24hr ErDiltiazem Hcl14suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1413
LevofloxacinLevofloxacin1414
ValacyclovirValacyclovir Hcl1411
BaclofenBaclofen13suppressed
ChlorthalidoneChlorthalidone13suppressed
EzetimibeEzetimibe13suppressed
NitroglycerinNitroglycerin1311
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
PregabalinPregabalin13suppressed
Acetaminophen-CodeineAcetaminophen With Codeine12suppressed
BrilintaTicagrelor12suppressed
CefdinirCefdinir1212
MupirocinMupirocin1212
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1212
Dicyclomine HclDicyclomine Hcl11suppressed
Paroxetine HclParoxetine Hcl11suppressed
TrulicityDulaglutide11suppressed
Vilazodone HclVilazodone 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