Healthcare provider profile · identity verified

David M Nadeau, MD

Allopathic & Osteopathic Physicians|Family Medicine · MUSKEGON, MI · NPI 1750357232

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 David M Nadeau, MD received $186.97 in general payments during 2025 across 8 reported records.

Axsome Therapeutics, Inc. accounted for 16.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Mounjaro, Nurtec Odt, Ozempic.

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 137 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 145 claims for Mounjaro 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Trulicity 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 41 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 54 claims for Rybelsus by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 146 claims for Eliquis by this doctor in 2024.

PFIZER 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Nurtec Odt by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$186.97

8 reported records · 8 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
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $30.2016.1%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $26.8714.4%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $25.9313.9%12025
PFIZER INC. Unresolved — no canonical attribution shown $23.7012.7%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $22.1611.8%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $20.1210.8%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $19.5610.5%12025
Supernus Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $18.439.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$186.978

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
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $30.20 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $26.87 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $25.93 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $23.70 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $23.70 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $22.16 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $20.12 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $20.12 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $19.56 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $19.56 1 2025
Source payment records
Qelbree
Normalized: qelbree
Drug Supernus Pharmaceuticals, Inc. $18.43 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
ELIQUIS
eliquis
2025 Eliquis 2024 146 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 145 exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 24
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 41 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
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
137 33
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
145 22
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
43 12
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
41 14
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
54 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
146 38
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
24 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
16 16

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 Calcium564171
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen47084
Levothyroxine SodiumLevothyroxine Sodium457129
Metoprolol SuccinateMetoprolol Succinate356120
LisinoprilLisinopril309102
Amlodipine BesylateAmlodipine Besylate30699
Losartan PotassiumLosartan Potassium30590
GabapentinGabapentin30487
OmeprazoleOmeprazole29082
Rosuvastatin CalciumRosuvastatin Calcium27587
Tamsulosin HclTamsulosin Hcl22466
Metformin HclMetformin Hcl22261
Montelukast SodiumMontelukast Sodium21154
Pantoprazole SodiumPantoprazole Sodium20856
Metoprolol TartrateMetoprolol Tartrate20153
Tramadol HclTramadol Hcl19650
Albuterol Sulfate HfaAlbuterol Sulfate19070
FurosemideFurosemide18555
AlprazolamAlprazolam18347
Duloxetine HclDuloxetine Hcl17142
AllopurinolAllopurinol16644
HydrochlorothiazideHydrochlorothiazide16455
SimvastatinSimvastatin15845
PregabalinPregabalin15232
Metformin Hcl ErMetformin Hcl14847
EliquisApixaban14638
GlimepirideGlimepiride14636
MounjaroTirzepatide14522
Potassium ChloridePotassium Chloride14341
JardianceEmpagliflozin13733
Trazodone HclTrazodone Hcl13437
Pravastatin SodiumPravastatin Sodium13138
EzetimibeEzetimibe11532
Fluoxetine HclFluoxetine Hcl10824
ClopidogrelClopidogrel Bisulfate10029
Escitalopram OxalateEscitalopram Oxalate9423
FarxigaDapagliflozin Propanediol9316
Bupropion XlBupropion Hcl9122
CephalexinCephalexin9147
MeloxicamMeloxicam9131
CarvedilolCarvedilol8827
Pioglitazone HclPioglitazone Hcl8527
Alendronate SodiumAlendronate Sodium8125
FamotidineFamotidine8128
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8125
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8121
Sertraline HclSertraline Hcl7825
SpironolactoneSpironolactone7818
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7811
Buspirone HclBuspirone Hcl7620
PrednisonePrednisone7435
AtenololAtenolol7324
Citalopram HbrCitalopram Hydrobromide7224
Hydroxyzine HclHydroxyzine Hcl7223
LovastatinLovastatin7219
MirtazapineMirtazapine7117
ClonazepamClonazepam6918
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen6719
Tizanidine HclTizanidine Hcl6525
Fluticasone PropionateFluticasone Propionate6430
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6122
AzithromycinAzithromycin5943
CelecoxibCelecoxib5625
Donepezil HclDonepezil Hcl5614
IbuprofenIbuprofen5512
FinasterideFinasteride5417
RybelsusSemaglutide54suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl5311
Venlafaxine Hcl ErVenlafaxine Hcl5315
FenofibrateFenofibrate Nanocrystallized5213
Methadone HclMethadone Hcl52suppressed
TorsemideTorsemide5217
AripiprazoleAripiprazole5114
Ondansetron OdtOndansetron5117
LamotrigineLamotrigine46suppressed
LorazepamLorazepam46suppressed
Amitriptyline HclAmitriptyline Hcl44suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst4435
Oxybutynin Chloride ErOxybutynin Chloride4411
Cyclobenzaprine HclCyclobenzaprine Hcl4314
TrulicityDulaglutide4312
OzempicSemaglutide4114
Diltiazem 24hr Er (Cd)Diltiazem Hcl4017
XareltoRivaroxaban4011
BaclofenBaclofen3915
Esomeprazole MagnesiumEsomeprazole Magnesium3913
Quetiapine FumarateQuetiapine Fumarate3912
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril38suppressed
Paroxetine HclParoxetine Hcl38suppressed
EstradiolEstradiol3712
GemfibrozilGemfibrozil36suppressed
KetoconazoleKetoconazole3620
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride36suppressed
Ventolin HfaAlbuterol Sulfate3618
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine35suppressed
Ipratropium BromideIpratropium Bromide3520
Solifenacin SuccinateSolifenacin Succinate35suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3526
Bupropion Hcl SrBupropion Hcl34suppressed
DiazepamDiazepam3412
Isosorbide Mononitrate ErIsosorbide Mononitrate3411
Fluticasone-SalmeterolFluticasone Propion/Salmeterol33suppressed
Morphine Sulfate ErMorphine Sulfate33suppressed
Diclofenac SodiumDiclofenac Sodium3212
Triamcinolone AcetonideTriamcinolone Acetonide3219
BumetanideBumetanide31suppressed
ColchicineColchicine31suppressed
FluconazoleFluconazole3116
Warfarin SodiumWarfarin Sodium31suppressed
Clobetasol PropionateClobetasol Propionate30suppressed
LevetiracetamLevetiracetam30suppressed
Propranolol HclPropranolol Hcl3011
SymbicortBudesonide/Formoterol Fumarate29suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2827
Desvenlafaxine Succinate ErDesvenlafaxine Succinate28suppressed
JanuviaSitagliptin Phosphate28suppressed
FenofibrateFenofibrate27suppressed
Hydralazine HclHydralazine Hcl27suppressed
MyrbetriqMirabegron27suppressed
NitroglycerinNitroglycerin2723
SynthroidLevothyroxine Sodium27suppressed
Tresiba Flextouch U-100Insulin Degludec27suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid27suppressed
Zolpidem TartrateZolpidem Tartrate27suppressed
Ropinirole HclRopinirole Hcl26suppressed
TopiramateTopiramate26suppressed
Breo ElliptaFluticasone/Vilanterol25suppressed
LinzessLinaclotide25suppressed
Liothyronine SodiumLiothyronine Sodium25suppressed
Methylphenidate HclMethylphenidate Hcl25suppressed
Spiriva RespimatTiotropium Bromide25suppressed
Doxycycline HyclateDoxycycline Hyclate2421
Enalapril MaleateEnalapril Maleate24suppressed
Nurtec OdtRimegepant Sulfate24suppressed
Propranolol Hcl ErPropranolol Hcl24suppressed
OxcarbazepineOxcarbazepine23suppressed
AmoxicillinAmoxicillin2217
CefdinirCefdinir2217
DigoxinDigoxin22suppressed
MethylprednisoloneMethylprednisolone2218
RisperidoneRisperidone22suppressed
Incruse ElliptaUmeclidinium Bromide21suppressed
Memantine HclMemantine Hcl21suppressed
OlanzapineOlanzapine21suppressed
ChlorthalidoneChlorthalidone20suppressed
Meclizine HclMeclizine Hcl20suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone19suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol19suppressed
InvokanaCanagliflozin19suppressed
Tresiba Flextouch U-200Insulin Degludec19suppressed
Nifedipine ErNifedipine18suppressed
Verapamil ErVerapamil Hcl18suppressed
Victoza 3-PakLiraglutide18suppressed
AcyclovirAcyclovir17suppressed
Dicyclomine HclDicyclomine Hcl17suppressed
Novolog FlexpenInsulin Aspart17suppressed
Ondansetron HclOndansetron Hcl17suppressed
SucralfateSucralfate17suppressed
Acetaminophen-CodeineAcetaminophen With Codeine16suppressed
FentanylFentanyl16suppressed
NaproxenNaproxen16suppressed
PaxlovidNirmatrelvir/Ritonavir1616
ValacyclovirValacyclovir Hcl1611
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide16suppressed
Divalproex Sodium ErDivalproex Sodium15suppressed
JantovenWarfarin Sodium15suppressed
Tolterodine Tartrate ErTolterodine Tartrate15suppressed
ConstuloseLactulose14suppressed
Doxazosin MesylateDoxazosin Mesylate14suppressed
Oxycodone HclOxycodone Hcl14suppressed
Sumatriptan SuccinateSumatriptan Succinate14suppressed
TelmisartanTelmisartan14suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
ValsartanValsartan14suppressed
Amiodarone HclAmiodarone Hcl13suppressed
BuprenorphineBuprenorphine13suppressed
EnuloseLactulose13suppressed
HumalogInsulin Lispro13suppressed
IndapamideIndapamide13suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic13suppressed
PhenobarbitalPhenobarbital13suppressed
ZonisamideZonisamide13suppressed
Atomoxetine HclAtomoxetine Hcl12suppressed
Benztropine MesylateBenztropine Mesylate12suppressed
Bevespi AerosphereGlycopyrrolate/Formoterol Fum12suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic12suppressed
Glipizide ErGlipizide12suppressed
Novolin NInsulin Nph Human Isophane12suppressed
ProgesteroneProgesterone, Micronized12suppressed
Promethazine HclPromethazine Hcl12suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic12suppressed
Varenicline TartrateVarenicline Tartrate12suppressed
Xtampza ErOxycodone Myristate12suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
BrilintaTicagrelor11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Diltiazem HclDiltiazem Hcl11suppressed
Flecainide AcetateFlecainide Acetate11suppressed
GemtesaVibegron11suppressed
GlycopyrrolateGlycopyrrolate11suppressed
Hydroxyzine PamoateHydroxyzine Pamoate11suppressed
LiraglutideLiraglutide11suppressed
MupirocinMupirocin11suppressed
NorethindroneNorethindrone11suppressed
NystatinNystatin11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed
TemazepamTemazepam11suppressed
Terbinafine HclTerbinafine 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 $186.97 · 8 records Axsome Therapeutics, Inc. Auvelity, CAPVAXIVE, Cologuard Collection Kit, ELIQUIS, FANAPT, GARDASIL 9, MOUNJARO, NURTEC ODT, Ozempic, Qelbree, ZEPBOUND 8
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