Healthcare provider profile · identity verified

Chistopher Nguyen Do, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · SAN JOSE, CA · NPI 1407876659

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 Chistopher Nguyen Do, M.D. received $1,273.70 in general payments during 2025 across 27 reported records.

Amgen Inc. accounted for 40.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 17 associated products.

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

Aimmune Therapeutics, 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 ZENPEP as an associated drug or biological on 32144 records involving 12432 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Zenpep by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRILINTA as an associated drug or biological on 993 records involving 512 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Brilinta by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 278 claims for Farxiga by this doctor in 2024.

Bayer Healthcare 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Kerendia by this doctor in 2024.

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 205 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC 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 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 205 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Mounjaro 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 48 claims for Ozempic 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 43 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

$1,273.70

27 reported records · 9 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
Amgen Inc. Unresolved — no canonical attribution shown $517.6940.6%82025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $264.2920.8%52025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $185.8614.6%72025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $150.0011.8%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $44.763.5%22025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $34.622.7%12025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $33.772.6%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $22.351.8%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $20.361.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,273.7027

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
OTEZLA
Normalized: otezla
Drug Amgen Inc. $265.31 3 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $217.55 3 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $210.65 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $206.22 8 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $188.57 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $155.12 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $150.00 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $112.59 4 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $112.59 4 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $34.62 1 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $33.77 1 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $33.77 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug ARRAY BIOPHARMA INC $33.77 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $25.14 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $25.14 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $22.35 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $19.62 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
FARXIGA
farxiga
2025 Farxiga 2024 278 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 205 exact normalized Medicare Part D
Kerendia
kerendia
2025 Kerendia 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 48
Beneficiary count suppressed
exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 43 exact normalized Medicare Part D
ZENPEP
zenpep
2025 Zenpep 2024 18
Beneficiary count suppressed
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
Aimmune Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 ZENPEP
open payments reported associated product
CMS Open Payments — General Payments
32144 supporting records · 12432 recipient NPIs · example record 1249641927
Zenpep · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BRILINTA
open payments reported associated product
CMS Open Payments — General Payments
993 supporting records · 512 recipient NPIs · example record 1206131430
Brilinta · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
278 81
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
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
205 57
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
205 57
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
48 suppressed by CMS
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
43 15

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 Calcium1456463
Amlodipine BesylateAmlodipine Besylate1016328
Losartan PotassiumLosartan Potassium883282
OmeprazoleOmeprazole536204
GabapentinGabapentin500213
Metformin HclMetformin Hcl425140
Triamcinolone AcetonideTriamcinolone Acetonide423148
Pioglitazone HclPioglitazone Hcl389130
Betamethasone Diprop AugmentedBetamethasone/Propylene Glyc361143
Montelukast SodiumMontelukast Sodium352133
Tamsulosin HclTamsulosin Hcl344112
Rosuvastatin CalciumRosuvastatin Calcium338118
LisinoprilLisinopril28886
Fluticasone PropionateFluticasone Propionate286109
Diclofenac SodiumDiclofenac Sodium280126
FarxigaDapagliflozin Propanediol27881
Alendronate SodiumAlendronate Sodium27484
Olmesartan MedoxomilOlmesartan Medoxomil25782
SimvastatinSimvastatin25082
Levothyroxine SodiumLevothyroxine Sodium24861
CelecoxibCelecoxib244112
Azelastine HclAzelastine Hcl23964
Memantine HclMemantine Hcl23676
ClopidogrelClopidogrel Bisulfate23175
Metoprolol SuccinateMetoprolol Succinate22375
FamotidineFamotidine22183
Metformin Hcl ErMetformin Hcl22072
JardianceEmpagliflozin20557
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine203127
Pantoprazole SodiumPantoprazole Sodium19678
Sildenafil CitrateSildenafil Citrate18840
Donepezil HclDonepezil Hcl18462
JanuviaSitagliptin Phosphate17845
Albuterol Sulfate HfaAlbuterol Sulfate16959
Zolpidem TartrateZolpidem Tartrate16773
GlipizideGlipizide16252
Tramadol HclTramadol Hcl15349
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav149122
AtenololAtenolol14942
HydrocortisoneHydrocortisone14450
LevofloxacinLevofloxacin137115
Clonidine HclClonidine Hcl13647
Meclizine HclMeclizine Hcl12964
Chlorhexidine GluconateChlorhexidine Gluconate12833
AllopurinolAllopurinol12244
VascepaIcosapent Ethyl12227
CarvedilolCarvedilol12147
Raloxifene HclRaloxifene Hcl11237
Verapamil ErVerapamil Hcl10935
Doxazosin MesylateDoxazosin Mesylate10836
Megestrol AcetateMegestrol Acetate10724
Metoprolol TartrateMetoprolol Tartrate10630
IrbesartanIrbesartan10535
MeloxicamMeloxicam10561
FenofibrateFenofibrate10027
EliquisApixaban9919
Ibandronate SodiumIbandronate Sodium9437
IbuprofenIbuprofen9344
TradjentaLinagliptin9125
KetoconazoleKetoconazole8631
FinasterideFinasteride8527
DutasterideDutasteride8224
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7928
Trazodone HclTrazodone Hcl7828
LansoprazoleLansoprazole7630
LovastatinLovastatin7423
HydrochlorothiazideHydrochlorothiazide7326
Nifedipine ErNifedipine7320
GlimepirideGlimepiride7228
Pravastatin SodiumPravastatin Sodium7226
Benazepril HclBenazepril Hcl7122
FurosemideFurosemide6930
BaclofenBaclofen6826
Trelegy ElliptaFluticasone/Umeclidin/Vilanter6822
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6715
Clobetasol PropionateClobetasol Propionate6617
LoperamideLoperamide Hcl6626
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst6545
AmoxicillinAmoxicillin6447
FluocinonideFluocinonide6119
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride6127
MirtazapineMirtazapine6029
LorazepamLorazepam5716
XareltoRivaroxaban5714
AlprazolamAlprazolam55suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5521
ValsartanValsartan5518
Ventolin HfaAlbuterol Sulfate5413
OzempicSemaglutide48suppressed
PaxlovidNirmatrelvir/Ritonavir4646
Hydroxyzine HclHydroxyzine Hcl4318
Procto-Med HcHydrocortisone4312
RybelsusSemaglutide4315
Fosinopril SodiumFosinopril Sodium4211
Isosorbide Mononitrate ErIsosorbide Mononitrate4216
Potassium ChloridePotassium Chloride4218
Sertraline HclSertraline Hcl4212
Pramipexole DihydrochloridePramipexole Di-Hcl41suppressed
Propranolol HclPropranolol Hcl4012
Terazosin HclTerazosin Hcl4014
Dicyclomine HclDicyclomine Hcl3913
Escitalopram OxalateEscitalopram Oxalate39suppressed
EzetimibeEzetimibe3916
Hydralazine HclHydralazine Hcl39suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide3713
ColchicineColchicine3612
Promethazine-DmPromethazine/Dextromethorphan3619
Citalopram HbrCitalopram Hydrobromide35suppressed
Fluoxetine HclFluoxetine Hcl35suppressed
Mometasone FuroateMometasone Furoate34suppressed
Cromolyn SodiumCromolyn Sodium33suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium3313
Icosapent EthylIcosapent Ethyl3317
Fluticasone-SalmeterolFluticasone Propion/Salmeterol32suppressed
RestasisCyclosporine32suppressed
Sumatriptan SuccinateSumatriptan Succinate32suppressed
Tenofovir Disoproxil FumarateTenofovir Disoproxil Fumarate30suppressed
Ketorolac TromethamineKetorolac Tromethamine29suppressed
Metoclopramide HclMetoclopramide Hcl2914
Tresiba Flextouch U-200Insulin Degludec29suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide29suppressed
CyclosporineCyclosporine28suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters2815
Glipizide ErGlipizide27suppressed
PrednisonePrednisone2715
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2715
TemazepamTemazepam27suppressed
Doxepin HclDoxepin Hcl26suppressed
Ondansetron HclOndansetron Hcl2617
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
MyrbetriqMirabegron25suppressed
ConstuloseLactulose24suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine24suppressed
LactuloseLactulose2417
Oxybutynin Chloride ErOxybutynin Chloride24suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen24suppressed
Probenecid-ColchicineProbenecid/Colchicine24suppressed
Quetiapine FumarateQuetiapine Fumarate24suppressed
CarisoprodolCarisoprodol23suppressed
CreonLipase/Protease/Amylase23suppressed
LinzessLinaclotide23suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic2311
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog22suppressed
BrilintaTicagrelor22suppressed
MounjaroTirzepatide22suppressed
DapagliflozinDapagliflozin Propanediol2116
EstradiolEstradiol2111
MupirocinMupirocin21suppressed
Solifenacin SuccinateSolifenacin Succinate21suppressed
Tresiba Flextouch U-100Insulin Degludec21suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol20suppressed
EszopicloneEszopiclone20suppressed
MethotrexateMethotrexate Sodium20suppressed
Ciprofloxacin HclCiprofloxacin Hcl1915
Lidocaine Hcl ViscousLidocaine Hcl19suppressed
BenzonatateBenzonatate1815
Duloxetine HclDuloxetine Hcl18suppressed
LatanoprostLatanoprost18suppressed
NaproxenNaproxen18suppressed
Nortriptyline HclNortriptyline Hcl18suppressed
Theophylline ErTheophylline Anhydrous18suppressed
ZenpepLipase/Protease/Amylase18suppressed
OlanzapineOlanzapine17suppressed
Paroxetine HclParoxetine Hcl17suppressed
Paxlovid (Eua)Nirmatrelvir/Ritonavir1717
AzithromycinAzithromycin1616
Rabeprazole SodiumRabeprazole Sodium16suppressed
Semglee (Yfgn) PenInsulin Glargine-Yfgn16suppressed
SulindacSulindac16suppressed
Buspirone HclBuspirone Hcl15suppressed
RisperidoneRisperidone15suppressed
Betamethasone DipropionateBetamethasone Dipropionate14suppressed
LevetiracetamLevetiracetam14suppressed
LidocaineLidocaine14suppressed
Propranolol Hcl ErPropranolol Hcl14suppressed
Wixela InhubFluticasone Propion/Salmeterol14suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
ErythromycinErythromycin Base13suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic13suppressed
PrimidonePrimidone13suppressed
ProzacFluoxetine Hcl13suppressed
TrintellixVortioxetine Hydrobromide13suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic13suppressed
Carbidopa-LevodopaCarbidopa/Levodopa12suppressed
Isosorbide DinitrateIsosorbide Dinitrate12suppressed
KerendiaFinerenone12suppressed
NystatinNystatin12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Prochlorperazine MaleateProchlorperazine Maleate12suppressed
RizatriptanRizatriptan Benzoate12suppressed
TwinrixHepatitis A And B Vaccine/Pf12suppressed
Ulticare Pen NeedlePen Needle, Diabetic12suppressed
AcarboseAcarbose11suppressed
AcyclovirAcyclovir11suppressed
Amiodarone HclAmiodarone Hcl11suppressed
AripiprazoleAripiprazole11suppressed
Divalproex Sodium ErDivalproex Sodium11suppressed
FluconazoleFluconazole11suppressed
GemtesaVibegron11suppressed
NitroglycerinNitroglycerin11suppressed
Proctozone-HcHydrocortisone11suppressed

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 $1,273.70 · 27 records Amgen Inc. AIRSUPRA, BRAFTOVI, BREZTRI, EVENITY, FARXIGA, JARDIANCE, Kerendia, LEQVIO, MEKTOVI, OTEZLA, Ozempic, PROLIA, REPATHA, Rybelsus, TUKYSA, Wegovy, ZENPEP 9
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