Healthcare provider profile · identity verified

Marc J. Mcnaughton, MD

Allopathic & Osteopathic Physicians|Family Medicine · MENTOR, OH · NPI 1114993029

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 Marc J. Mcnaughton, MD received $680.29 in general payments during 2025 across 36 reported records.

ABBVIE INC. accounted for 28.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 18 associated products.

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

ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 71 claims for Synthroid 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 59 claims for Farxiga 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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Symbicort 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 15 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 111 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 34 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 88 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 Wegovy as an associated drug or biological on 183056 records involving 75256 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Wegovy 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 61 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$680.29

36 reported records · 11 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
ABBVIE INC. Unresolved — no canonical attribution shown $192.3628.3%112025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $156.8123.1%62025
Novo Nordisk Inc Unresolved — no canonical attribution shown $69.6210.2%42025
Exact Sciences Corporation Unresolved — no canonical attribution shown $60.088.8%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $41.686.1%32025
PFIZER INC. Unresolved — no canonical attribution shown $34.195.0%22025
Amgen Inc. Unresolved — no canonical attribution shown $29.154.3%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $27.494.0%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $23.823.5%12025
Mannkind Corporation Unresolved — no canonical attribution shown $22.853.4%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $22.243.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$680.2936

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
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $192.36 11 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $156.81 6 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $60.08 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $55.58 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $55.58 3 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $41.68 3 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $41.68 3 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $34.19 2 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $29.15 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $23.82 1 2025
Source payment records
AFREZZA
Normalized: afrezza
Drug Mannkind Corporation $22.85 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $22.52 3 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $22.24 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $18.44 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $15.75 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $14.04 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $13.99 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $13.50 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 61 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 111 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 88 exact normalized Medicare Part D
Wegovy
wegovy
2025 Wegovy 2024 13
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
71 18
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
59 19
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
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
15 suppressed by CMS
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
111 23
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
34 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
88 11
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Wegovy
open payments reported associated product
CMS Open Payments — General Payments
183056 supporting records · 75256 recipient NPIs · example record 1188130070
Wegovy · 2024
Exact normalized brand match · 1 Part D row
13 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
61 18

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 Calcium588169
LisinoprilLisinopril464123
Levothyroxine SodiumLevothyroxine Sodium30672
Metformin HclMetformin Hcl30482
OmeprazoleOmeprazole29683
Amlodipine BesylateAmlodipine Besylate26573
HydrochlorothiazideHydrochlorothiazide25275
SimvastatinSimvastatin20756
Losartan PotassiumLosartan Potassium19760
Metoprolol SuccinateMetoprolol Succinate17555
Albuterol Sulfate HfaAlbuterol Sulfate16642
GlimepirideGlimepiride16444
Rosuvastatin CalciumRosuvastatin Calcium15551
Metoprolol TartrateMetoprolol Tartrate14436
Tamsulosin HclTamsulosin Hcl12742
MounjaroTirzepatide11123
AllopurinolAllopurinol11031
Sertraline HclSertraline Hcl10432
FurosemideFurosemide9229
GabapentinGabapentin9126
OzempicSemaglutide8811
Fluticasone PropionateFluticasone Propionate8325
KetoconazoleKetoconazole7229
Pravastatin SodiumPravastatin Sodium7222
Pantoprazole SodiumPantoprazole Sodium7124
SynthroidLevothyroxine Sodium7118
Metformin Hcl ErMetformin Hcl6923
MeloxicamMeloxicam6314
Pioglitazone HclPioglitazone Hcl6317
EliquisApixaban6118
FarxigaDapagliflozin Propanediol5919
LovastatinLovastatin5615
Alendronate SodiumAlendronate Sodium5416
Trazodone HclTrazodone Hcl5421
Escitalopram OxalateEscitalopram Oxalate5218
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5015
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5016
FinasterideFinasteride4915
IbuprofenIbuprofen4826
Repatha SureclickEvolocumab48suppressed
Bupropion XlBupropion Hcl4715
Citalopram HbrCitalopram Hydrobromide4712
AtenololAtenolol4617
PrednisonePrednisone4629
Breo ElliptaFluticasone/Vilanterol44suppressed
Fluoxetine HclFluoxetine Hcl4412
CarvedilolCarvedilol4314
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4234
ChlorthalidoneChlorthalidone42suppressed
Potassium ChloridePotassium Chloride4115
AzithromycinAzithromycin3924
GlipizideGlipizide3611
Venlafaxine Hcl ErVenlafaxine Hcl36suppressed
Duloxetine HclDuloxetine Hcl3511
SpironolactoneSpironolactone35suppressed
FenofibrateFenofibrate34suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3422
TrulicityDulaglutide34suppressed
JanuviaSitagliptin Phosphate32suppressed
AlprazolamAlprazolam3117
Doxycycline HyclateDoxycycline Hyclate3024
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3011
CelecoxibCelecoxib28suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide28suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium26suppressed
Divalproex Sodium ErDivalproex Sodium25suppressed
Hydroxyzine HclHydroxyzine Hcl2511
Oxybutynin ChlorideOxybutynin Chloride25suppressed
Olmesartan MedoxomilOlmesartan Medoxomil24suppressed
Tizanidine HclTizanidine Hcl24suppressed
Amitriptyline HclAmitriptyline Hcl22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Bupropion Hcl SrBupropion Hcl21suppressed
EstradiolEstradiol21suppressed
Montelukast SodiumMontelukast Sodium21suppressed
SymbicortBudesonide/Formoterol Fumarate21suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2017
TrimethoprimTrimethoprim20suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog19suppressed
Quetiapine FumarateQuetiapine Fumarate19suppressed
EntrestoSacubitril/Valsartan18suppressed
GemfibrozilGemfibrozil18suppressed
Meclizine HclMeclizine Hcl18suppressed
Terazosin HclTerazosin Hcl18suppressed
Diclofenac SodiumDiclofenac Sodium17suppressed
EzetimibeEzetimibe17suppressed
Verapamil ErVerapamil Hcl17suppressed
Hydralazine HclHydralazine Hcl16suppressed
Ropinirole HclRopinirole Hcl16suppressed
SucralfateSucralfate16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
ClopidogrelClopidogrel Bisulfate15suppressed
FamotidineFamotidine15suppressed
Felodipine ErFelodipine15suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
JardianceEmpagliflozin15suppressed
LansoprazoleLansoprazole15suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended15suppressed
TestosteroneTestosterone15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1412
NystatinNystatin14suppressed
Propranolol HclPropranolol Hcl14suppressed
RamiprilRamipril14suppressed
CephalexinCephalexin1311
Doxazosin MesylateDoxazosin Mesylate13suppressed
Fluticasone Propionate HfaFluticasone Propionate13suppressed
MirtazapineMirtazapine13suppressed
Sumatriptan SuccinateSumatriptan Succinate13suppressed
WegovySemaglutide13suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
IrbesartanIrbesartan12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed
Vitamin D2Ergocalciferol (Vitamin D2)12suppressed
Buspirone HclBuspirone Hcl11suppressed
DiazepamDiazepam11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
FluconazoleFluconazole11suppressed
MethylprednisoloneMethylprednisolone11suppressed
ValsartanValsartan11suppressed
Ventolin HfaAlbuterol Sulfate11suppressed

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 $680.29 · 36 records ABBVIE INC. AFREZZA, AIRSUPRA, BREZTRI, Cologuard Collection Kit, ELIQUIS, EVENITY, Korlym, MOUNJARO, NURTEC ODT, Ozempic, QULIPTA, Rybelsus, UBRELVY, VOQUEZNA, Veozah, Wegovy, ZAVZPRET, ZEPBOUND 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