Healthcare provider profile · identity verified

Margaret V. Cox, MD

Allopathic & Osteopathic Physicians|Internal Medicine · FORT SMITH, AR · NPI 1407010952

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 Margaret V. Cox, MD received $154.94 in general payments during 2025 across 10 reported records.

GlaxoSmithKline, LLC. accounted for 26.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Trelegy Ellipta.

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 37 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 27 claims for Symbicort by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 127 claims for Trelegy Ellipta by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Entresto 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 165 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

$154.94

10 reported records · 7 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $41.7226.9%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $32.2620.8%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $18.9112.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $16.8110.8%12025
Abbott Laboratories Unresolved — no canonical attribution shown $16.4410.6%12025
PFIZER INC. Unresolved — no canonical attribution shown $14.699.5%12025
Amgen Inc. Unresolved — no canonical attribution shown $14.119.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$154.9410

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
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $32.26 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $28.17 2 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $18.91 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $16.81 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $16.44 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $14.69 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $14.69 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $14.11 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $13.55 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $13.55 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
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 127 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
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
37 suppressed by CMS
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
27 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
127 27
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
11 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
165 31

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 Calcium891262
Levothyroxine SodiumLevothyroxine Sodium605163
OmeprazoleOmeprazole568169
Losartan PotassiumLosartan Potassium534156
Amlodipine BesylateAmlodipine Besylate510161
LisinoprilLisinopril492145
Rosuvastatin CalciumRosuvastatin Calcium435151
Pantoprazole SodiumPantoprazole Sodium411116
GabapentinGabapentin394112
JardianceEmpagliflozin29075
Metoprolol SuccinateMetoprolol Succinate26781
Duloxetine HclDuloxetine Hcl25768
Metformin Hcl ErMetformin Hcl24080
Alendronate SodiumAlendronate Sodium23374
Tramadol HclTramadol Hcl22550
HydrochlorothiazideHydrochlorothiazide22469
Montelukast SodiumMontelukast Sodium22262
Tamsulosin HclTamsulosin Hcl21064
Trazodone HclTrazodone Hcl19660
Albuterol Sulfate HfaAlbuterol Sulfate19062
Potassium ChloridePotassium Chloride19060
Escitalopram OxalateEscitalopram Oxalate18253
MeloxicamMeloxicam17859
Fluticasone PropionateFluticasone Propionate17751
Metformin HclMetformin Hcl17159
Metoprolol TartrateMetoprolol Tartrate16951
OzempicSemaglutide16839
AllopurinolAllopurinol16544
EliquisApixaban16531
FurosemideFurosemide16051
Pravastatin SodiumPravastatin Sodium15743
Citalopram HbrCitalopram Hydrobromide14835
CarvedilolCarvedilol14735
Cyclobenzaprine HclCyclobenzaprine Hcl13852
Ropinirole HclRopinirole Hcl13829
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12727
PregabalinPregabalin12525
SimvastatinSimvastatin12533
Bupropion XlBupropion Hcl12439
Glipizide ErGlipizide12436
Amitriptyline HclAmitriptyline Hcl12240
Zolpidem TartrateZolpidem Tartrate11628
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen10830
Sertraline HclSertraline Hcl10736
Paroxetine HclParoxetine Hcl10627
FamotidineFamotidine10528
CelecoxibCelecoxib10330
MounjaroTirzepatide10028
ClopidogrelClopidogrel Bisulfate9733
Tizanidine HclTizanidine Hcl9426
MirtazapineMirtazapine8723
FinasterideFinasteride8621
EstradiolEstradiol8434
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8122
SpironolactoneSpironolactone7822
TemazepamTemazepam7616
EzetimibeEzetimibe7324
AlprazolamAlprazolam7221
Sumatriptan SuccinateSumatriptan Succinate7112
ClonazepamClonazepam6916
Azelastine HclAzelastine Hcl6827
Fluoxetine HclFluoxetine Hcl6320
Hydroxyzine HclHydroxyzine Hcl6318
Memantine HclMemantine Hcl6319
EszopicloneEszopiclone6215
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst6044
MyrbetriqMirabegron5914
Ondansetron OdtOndansetron5830
Buspirone HclBuspirone Hcl5715
Bisoprolol FumarateBisoprolol Fumarate5414
Diclofenac SodiumDiclofenac Sodium5421
SynthroidLevothyroxine Sodium5318
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5218
Donepezil HclDonepezil Hcl4714
Ventolin HfaAlbuterol Sulfate4714
AtenololAtenolol4411
LinzessLinaclotide4217
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4213
Olmesartan MedoxomilOlmesartan Medoxomil4113
Clobetasol PropionateClobetasol Propionate4024
ChlorthalidoneChlorthalidone3912
Diltiazem 24hr Er (Cd)Diltiazem Hcl3917
Propranolol Hcl ErPropranolol Hcl3911
Venlafaxine Hcl ErVenlafaxine Hcl3912
PrednisonePrednisone3823
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)3712
FarxigaDapagliflozin Propanediol37suppressed
Hydralazine HclHydralazine Hcl3712
ValacyclovirValacyclovir Hcl3714
Dicyclomine HclDicyclomine Hcl3511
Esomeprazole MagnesiumEsomeprazole Magnesium3512
LorazepamLorazepam35suppressed
Solifenacin SuccinateSolifenacin Succinate3411
TopiramateTopiramate34suppressed
Promethazine HclPromethazine Hcl33suppressed
Dilt-XrDiltiazem Hcl32suppressed
Repatha SureclickEvolocumab32suppressed
Doxycycline HyclateDoxycycline Hyclate3127
Enalapril MaleateEnalapril Maleate31suppressed
NystatinNystatin3117
ValsartanValsartan31suppressed
Bupropion Hcl SrBupropion Hcl30suppressed
Verapamil ErVerapamil Hcl30suppressed
TorsemideTorsemide29suppressed
Nebivolol HclNebivolol Hcl28suppressed
BaclofenBaclofen2711
Desvenlafaxine Succinate ErDesvenlafaxine Succinate2711
SymbicortBudesonide/Formoterol Fumarate27suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog27suppressed
Clonidine HclClonidine Hcl26suppressed
TrulicityDulaglutide26suppressed
Breo ElliptaFluticasone/Vilanterol25suppressed
IrbesartanIrbesartan25suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride24suppressed
NitroglycerinNitroglycerin2415
Propranolol HclPropranolol Hcl23suppressed
Tresiba Flextouch U-200Insulin Degludec23suppressed
Warfarin SodiumWarfarin Sodium23suppressed
FenofibrateFenofibrate Nanocrystallized21suppressed
HydrocortisoneHydrocortisone2115
LovastatinLovastatin21suppressed
Pioglitazone HclPioglitazone Hcl21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide21suppressed
TrulancePlecanatide21suppressed
AcyclovirAcyclovir20suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate19suppressed
Ciprofloxacin HclCiprofloxacin Hcl1918
KetoconazoleKetoconazole1911
Nano 2nd Gen Pen NeedlePen Needle, Diabetic19suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl18suppressed
FenofibrateFenofibrate18suppressed
MethylprednisoloneMethylprednisolone1818
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
RizatriptanRizatriptan Benzoate18suppressed
Arnuity ElliptaFluticasone Furoate17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
Tresiba Flextouch U-100Insulin Degludec17suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
FluconazoleFluconazole16suppressed
Meclizine HclMeclizine Hcl16suppressed
Nifedipine ErNifedipine16suppressed
AzithromycinAzithromycin1515
Ibandronate SodiumIbandronate Sodium15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
Klor-Con M20Potassium Chloride15suppressed
LansoprazoleLansoprazole15suppressed
MethocarbamolMethocarbamol15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
SsdSilver Sulfadiazine1511
TelmisartanTelmisartan15suppressed
UbrelvyUbrogepant15suppressed
Estradiol (Twice Weekly)Estradiol14suppressed
Fluvoxamine MaleateFluvoxamine Maleate14suppressed
GlipizideGlipizide14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic14suppressed
AmoxicillinAmoxicillin1313
EstaryllaNorgestimate-Ethinyl Estradiol13suppressed
MinoxidilMinoxidil13suppressed
Terazosin HclTerazosin Hcl13suppressed
Verapamil SrVerapamil Hcl13suppressed
Armour ThyroidThyroid,pork12suppressed
CephalexinCephalexin12suppressed
DescovyEmtricitabine/Tenofov Alafenam12suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine12suppressed
Droplet Pen NeedlePen Needle, Diabetic12suppressed
FebuxostatFebuxostat12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
Tolterodine TartrateTolterodine Tartrate12suppressed
Colestipol HclColestipol Hcl11suppressed
Emgality PenGalcanezumab-Gnlm11suppressed
EntrestoSacubitril/Valsartan11suppressed
MupirocinMupirocin11suppressed
RybelsusSemaglutide11suppressed

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 $154.94 · 10 records GlaxoSmithKline, LLC. AIRSUPRA, AREXVY, Cologuard Collection Kit, EVENITY, FREESTYLE LIBRE 3, LEQVIO, NURTEC ODT, SHINGRIX, TRELEGY ELLIPTA, ZAVZPRET 5
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