Healthcare provider profile · identity verified

James B Bigham, MD

Allopathic & Osteopathic Physicians|Family Medicine · MADISON, WI · NPI 1558595363

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 James B Bigham, MD received $851.40 in general payments during 2025 across 3 reported records.

Exact Sciences Corporation accounted for 98.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$851.40

3 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
Exact Sciences Corporation Unresolved — no canonical attribution shown $836.6398.3%22025
Valneva USA, Inc. Unresolved — no canonical attribution shown $14.771.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$760.001
Food and Beverage$91.402

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 $836.63 2 2025
Source payment records
IXCHIQ
Normalized: ixchiq
Drug Valneva USA, Inc. $14.77 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium695174
Amlodipine BesylateAmlodipine Besylate465109
Levothyroxine SodiumLevothyroxine Sodium29769
LisinoprilLisinopril29375
Rosuvastatin CalciumRosuvastatin Calcium28781
EliquisApixaban26546
HydrochlorothiazideHydrochlorothiazide25866
Tamsulosin HclTamsulosin Hcl25154
Metoprolol SuccinateMetoprolol Succinate21854
OmeprazoleOmeprazole21854
Metformin Hcl ErMetformin Hcl18746
FurosemideFurosemide18350
Losartan PotassiumLosartan Potassium17143
GabapentinGabapentin14337
CarvedilolCarvedilol13427
Sertraline HclSertraline Hcl11533
Trazodone HclTrazodone Hcl11332
Metoprolol TartrateMetoprolol Tartrate11123
FinasterideFinasteride10219
OzempicSemaglutide9713
FamotidineFamotidine9427
AllopurinolAllopurinol8623
Pantoprazole SodiumPantoprazole Sodium8427
ValsartanValsartan8224
SimvastatinSimvastatin8117
Fluoxetine HclFluoxetine Hcl7918
Fluticasone PropionateFluticasone Propionate7840
Warfarin SodiumWarfarin Sodium7817
IrbesartanIrbesartan7725
AtenololAtenolol7522
Potassium ChloridePotassium Chloride7421
Benazepril HclBenazepril Hcl7122
LorazepamLorazepam6331
JardianceEmpagliflozin59suppressed
Tramadol HclTramadol Hcl5919
Glipizide ErGlipizide5716
Oxycodone HclOxycodone Hcl5413
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen52suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5213
MirtazapineMirtazapine5012
Albuterol Sulfate HfaAlbuterol Sulfate4918
SpironolactoneSpironolactone45suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl4421
ClonazepamClonazepam43suppressed
Metformin HclMetformin Hcl4314
TrulicityDulaglutide43suppressed
Zolpidem TartrateZolpidem Tartrate4311
Alendronate SodiumAlendronate Sodium4112
Bupropion XlBupropion Hcl41suppressed
Buspirone HclBuspirone Hcl40suppressed
OlanzapineOlanzapine40suppressed
ClopidogrelClopidogrel Bisulfate3911
Citalopram HbrCitalopram Hydrobromide37suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide35suppressed
Terbinafine HclTerbinafine Hcl3411
XareltoRivaroxaban33suppressed
LevetiracetamLevetiracetam32suppressed
Montelukast SodiumMontelukast Sodium32suppressed
PrednisonePrednisone3217
AmoxicillinAmoxicillin3113
Doxazosin MesylateDoxazosin Mesylate31suppressed
Escitalopram OxalateEscitalopram Oxalate30suppressed
BaclofenBaclofen29suppressed
PregabalinPregabalin28suppressed
ChlorthalidoneChlorthalidone2711
Triamcinolone AcetonideTriamcinolone Acetonide2723
AlprazolamAlprazolam23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2318
Doxycycline HyclateDoxycycline Hyclate23suppressed
KetoconazoleKetoconazole23suppressed
Memantine HclMemantine Hcl23suppressed
Nifedipine ErNifedipine23suppressed
Duloxetine HclDuloxetine Hcl22suppressed
Novolog FlexpenInsulin Aspart22suppressed
Oxybutynin ChlorideOxybutynin Chloride22suppressed
Morphine SulfateMorphine Sulfate20suppressed
NystatinNystatin20suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic20suppressed
AripiprazoleAripiprazole19suppressed
Bupropion HclBupropion Hcl19suppressed
Dilt-XrDiltiazem Hcl17suppressed
DutasterideDutasteride17suppressed
EzetimibeEzetimibe17suppressed
GlipizideGlipizide17suppressed
Methylphenidate HclMethylphenidate Hcl17suppressed
Ondansetron OdtOndansetron1712
UrsodiolUrsodiol17suppressed
ValacyclovirValacyclovir Hcl17suppressed
Ventolin HfaAlbuterol Sulfate1712
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1612
RisperidoneRisperidone16suppressed
Advair HfaFluticasone Propion/Salmeterol15suppressed
DiazepamDiazepam15suppressed
Pioglitazone HclPioglitazone Hcl15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
Amiodarone HclAmiodarone Hcl14suppressed
AzithromycinAzithromycin14suppressed
EstradiolEstradiol14suppressed
HaloperidolHaloperidol14suppressed
LansoprazoleLansoprazole14suppressed
Levetiracetam ErLevetiracetam14suppressed
MounjaroTirzepatide14suppressed
Verapamil ErVerapamil Hcl14suppressed
Bromocriptine MesylateBromocriptine Mesylate13suppressed
CarisoprodolCarisoprodol13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1312
Donepezil HclDonepezil Hcl13suppressed
GlycopyrrolateGlycopyrrolate13suppressed
Humalog Kwikpen U-100Insulin Lispro13suppressed
Incruse ElliptaUmeclidinium Bromide13suppressed
JanuviaSitagliptin Phosphate13suppressed
LevocarnitineLevocarnitine (With Sugar)13suppressed
Nortriptyline HclNortriptyline Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
CephalexinCephalexin12suppressed
ClobazamClobazam12suppressed
Fluvoxamine MaleateFluvoxamine Maleate12suppressed
LatanoprostLatanoprost12suppressed
Morphine Sulfate ErMorphine Sulfate12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
TopiramateTopiramate12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
AsmanexMometasone Furoate11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
GemfibrozilGemfibrozil11suppressed
Ondansetron HclOndansetron Hcl11suppressed
RestasisCyclosporine11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed

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 $851.40 · 3 records Exact Sciences Corporation Cologuard Collection Kit, IXCHIQ
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