Healthcare provider profile · identity verified

Robert W Nguyen, MD

Allopathic & Osteopathic Physicians|Internal Medicine · COLTON, CA · NPI 1144256900

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 Robert W Nguyen, MD received $428.71 in general payments during 2025 across 21 reported records.

Novo Nordisk Inc accounted for 60.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Rybelsus.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 789 claims for Jardiance by this doctor in 2024.

Novo Nordisk 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 46 claims for Rybelsus by this doctor in 2024.

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

Payment overview · 2025

General Payments

$428.71

21 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $260.2860.7%132025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $168.4339.3%82025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$428.7121

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
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $168.43 8 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $29.65 2 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $29.65 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $24.87 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
JARDIANCE
jardiance
2025 Jardiance 2024 789 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 46 exact normalized Medicare Part D

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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
789 165
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
46 11

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
JardianceEmpagliflozin789165
Metformin HclMetformin Hcl673210
Losartan PotassiumLosartan Potassium667209
Atorvastatin CalciumAtorvastatin Calcium637203
Rosuvastatin CalciumRosuvastatin Calcium506163
Amlodipine BesylateAmlodipine Besylate487166
Albuterol Sulfate HfaAlbuterol Sulfate337125
Fluticasone PropionateFluticasone Propionate298114
JanuviaSitagliptin Phosphate29263
LisinoprilLisinopril24668
FarxigaDapagliflozin Propanediol23856
Tamsulosin HclTamsulosin Hcl20577
CelecoxibCelecoxib18294
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)17257
AcarboseAcarbose16243
Tizanidine HclTizanidine Hcl15883
CreonLipase/Protease/Amylase15545
Levothyroxine SodiumLevothyroxine Sodium15547
CarvedilolCarvedilol15256
Metoprolol SuccinateMetoprolol Succinate13639
Diclofenac SodiumDiclofenac Sodium12656
Alendronate SodiumAlendronate Sodium12441
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12233
Montelukast SodiumMontelukast Sodium11947
Ipratropium BromideIpratropium Bromide11550
AllopurinolAllopurinol8225
ZenpepLipase/Protease/Amylase7727
FamotidineFamotidine7338
FinasterideFinasteride6927
Triamcinolone AcetonideTriamcinolone Acetonide6931
LactuloseLactulose6845
OmeprazoleOmeprazole6830
ClopidogrelClopidogrel Bisulfate6520
GabapentinGabapentin6526
DexamethasoneDexamethasone6442
NaproxenNaproxen6339
VascepaIcosapent Ethyl6212
Meclizine HclMeclizine Hcl6027
TradjentaLinagliptin6017
MirtazapineMirtazapine5827
ColchicineColchicine5726
PrednisonePrednisone5639
Benazepril HclBenazepril Hcl5217
BreynaBudesonide/Formoterol Fumarate5219
FurosemideFurosemide5224
NitroglycerinNitroglycerin5032
Breztri AerosphereBudesonide/Glycopyr/Formoterol4713
RybelsusSemaglutide4611
Ibandronate SodiumIbandronate Sodium4417
Icosapent EthylIcosapent Ethyl4417
Raloxifene HclRaloxifene Hcl42suppressed
SucralfateSucralfate4121
Clonidine HclClonidine Hcl3914
Chlorhexidine GluconateChlorhexidine Gluconate3824
ClonidineClonidine3812
DapagliflozinDapagliflozin Propanediol3725
Metoprolol TartrateMetoprolol Tartrate37suppressed
EliquisApixaban3611
Escitalopram OxalateEscitalopram Oxalate3415
Metformin Hcl ErMetformin Hcl33suppressed
KetoconazoleKetoconazole3111
Metoclopramide HclMetoclopramide Hcl3115
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2916
NystatinNystatin2813
Trelegy ElliptaFluticasone/Umeclidin/Vilanter28suppressed
Azelastine HclAzelastine Hcl2712
ChlorthalidoneChlorthalidone2712
AmoxicillinAmoxicillin2622
Nifedipine ErNifedipine26suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr25suppressed
Doxazosin MesylateDoxazosin Mesylate25suppressed
FenofibrateFenofibrate Nanocrystallized25suppressed
XiidraLifitegrast25suppressed
Hydralazine HclHydralazine Hcl24suppressed
Nortriptyline HclNortriptyline Hcl24suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2320
Enalapril MaleateEnalapril Maleate23suppressed
Sertraline HclSertraline Hcl23suppressed
HydrochlorothiazideHydrochlorothiazide22suppressed
Isosorbide DinitrateIsosorbide Dinitrate22suppressed
Pantoprazole SodiumPantoprazole Sodium21suppressed
Pioglitazone HclPioglitazone Hcl21suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic20suppressed
Clobetasol PropionateClobetasol Propionate2014
PregabalinPregabalin20suppressed
BrilintaTicagrelor19suppressed
EzetimibeEzetimibe19suppressed
VemlidyTenofovir Alafenamide19suppressed
AtenololAtenolol18suppressed
LorazepamLorazepam18suppressed
GlipizideGlipizide17suppressed
LatanoprostLatanoprost17suppressed
Oseltamivir PhosphateOseltamivir Phosphate1715
RestasisCyclosporine17suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
DutasterideDutasteride16suppressed
EntecavirEntecavir16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
SimvastatinSimvastatin16suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic16suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Pravastatin SodiumPravastatin Sodium15suppressed
FluconazoleFluconazole14suppressed
FluocinonideFluocinonide14suppressed
Memantine HclMemantine Hcl14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
ValsartanValsartan14suppressed
Varenicline TartrateVarenicline Tartrate14suppressed
Alcohol PadsAlcohol Antiseptic Pads13suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads13suppressed
AzithromycinAzithromycin1312
ClotrimazoleClotrimazole13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1211
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
BenzonatateBenzonatate11suppressed
MetronidazoleMetronidazole11suppressed

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 $428.71 · 21 records Novo Nordisk Inc JARDIANCE, Ozempic, Rybelsus, Wegovy 2
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