Healthcare provider profile · identity verified

William Butz, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · RED OAK, IA · NPI 1649384868

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 William Butz, M.D. received $25.76 in general payments during 2025 across 1 reported records.

Baxter Healthcare accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$25.76

1 reported records · 1 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
Baxter Healthcare Unresolved — no canonical attribution shown $25.76100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$25.761

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
Hillrom - Cardiac Ambulatory Monitor
Normalized: hillrom cardiac ambulatory monitor
Device Baxter Healthcare $25.76 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 Calcium445118
Losartan PotassiumLosartan Potassium434114
Levothyroxine SodiumLevothyroxine Sodium39483
FurosemideFurosemide32052
Metoprolol SuccinateMetoprolol Succinate31777
Amlodipine BesylateAmlodipine Besylate27977
Pantoprazole SodiumPantoprazole Sodium26263
LisinoprilLisinopril22957
OmeprazoleOmeprazole22560
GabapentinGabapentin21549
HydrochlorothiazideHydrochlorothiazide18651
Potassium ChloridePotassium Chloride18446
Tramadol HclTramadol Hcl16234
Tamsulosin HclTamsulosin Hcl14241
Trazodone HclTrazodone Hcl13926
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12631
Duloxetine HclDuloxetine Hcl11826
Rosuvastatin CalciumRosuvastatin Calcium11033
AlprazolamAlprazolam10826
Sertraline HclSertraline Hcl10719
MeloxicamMeloxicam9727
EliquisApixaban9515
SimvastatinSimvastatin9225
Escitalopram OxalateEscitalopram Oxalate9119
Metoprolol TartrateMetoprolol Tartrate9119
Metformin Hcl ErMetformin Hcl8219
Warfarin SodiumWarfarin Sodium7914
AllopurinolAllopurinol7624
Metformin HclMetformin Hcl7620
Fluticasone PropionateFluticasone Propionate7522
OzempicSemaglutide7513
ClopidogrelClopidogrel Bisulfate7215
Memantine HclMemantine Hcl7211
CephalexinCephalexin7054
MirtazapineMirtazapine7014
PregabalinPregabalin7017
SpironolactoneSpironolactone6916
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog68suppressed
FinasterideFinasteride6612
CelecoxibCelecoxib6219
Donepezil HclDonepezil Hcl6212
EzetimibeEzetimibe6019
JardianceEmpagliflozin5912
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5917
CarvedilolCarvedilol5715
Albuterol Sulfate HfaAlbuterol Sulfate5619
Buspirone HclBuspirone Hcl53suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5016
PrednisonePrednisone4733
Cyclobenzaprine HclCyclobenzaprine Hcl4316
Zolpidem TartrateZolpidem Tartrate4211
Lantus SolostarInsulin Glargine,hum.Rec.Anlog41suppressed
Montelukast SodiumMontelukast Sodium4111
XareltoRivaroxaban40suppressed
Benazepril HclBenazepril Hcl39suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3920
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3831
CefdinirCefdinir3628
FamotidineFamotidine36suppressed
Novolog FlexpenInsulin Aspart36suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl33suppressed
AzithromycinAzithromycin3219
FluconazoleFluconazole3217
Phenytoin Sodium ExtendedPhenytoin Sodium Extended32suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter30suppressed
GlimepirideGlimepiride29suppressed
Citalopram HbrCitalopram Hydrobromide28suppressed
Clonidine HclClonidine Hcl28suppressed
Venlafaxine Hcl ErVenlafaxine Hcl28suppressed
Pravastatin SodiumPravastatin Sodium27suppressed
TopiramateTopiramate27suppressed
Amiodarone HclAmiodarone Hcl26suppressed
DilantinPhenytoin Sodium Extended26suppressed
Nebivolol HclNebivolol Hcl26suppressed
Bupropion XlBupropion Hcl25suppressed
Alendronate SodiumAlendronate Sodium24suppressed
ClonazepamClonazepam24suppressed
TrulicityDulaglutide23suppressed
EntrestoSacubitril/Valsartan22suppressed
LevetiracetamLevetiracetam22suppressed
AripiprazoleAripiprazole21suppressed
FenofibrateFenofibrate Nanocrystallized21suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen21suppressed
AtenololAtenolol20suppressed
BaclofenBaclofen20suppressed
Bevespi AerosphereGlycopyrrolate/Formoterol Fum20suppressed
Quetiapine FumarateQuetiapine Fumarate20suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1913
Ondansetron OdtOndansetron1814
Alfuzosin Hcl ErAlfuzosin Hcl17suppressed
Carbidopa-LevodopaCarbidopa/Levodopa17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate17suppressed
RybelsusSemaglutide17suppressed
Solifenacin SuccinateSolifenacin Succinate17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
Hydralazine HclHydralazine Hcl16suppressed
LorazepamLorazepam16suppressed
LovastatinLovastatin16suppressed
Oxycodone HclOxycodone Hcl16suppressed
Ciprofloxacin HclCiprofloxacin Hcl15suppressed
HydrocortisoneHydrocortisone15suppressed
Labetalol HclLabetalol Hcl15suppressed
LinzessLinaclotide15suppressed
MethimazoleMethimazole15suppressed
MethotrexateMethotrexate Sodium15suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic15suppressed
SucralfateSucralfate15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
Bisoprolol FumarateBisoprolol Fumarate14suppressed
DiazepamDiazepam14suppressed
EtodolacEtodolac14suppressed
MyrbetriqMirabegron14suppressed
NystatinNystatin1412
Paroxetine HclParoxetine Hcl14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl13suppressed
EszopicloneEszopiclone13suppressed
GlipizideGlipizide13suppressed
Hydroxyzine HclHydroxyzine Hcl13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
Varenicline TartrateVarenicline Tartrate13suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)12suppressed
Doxycycline HyclateDoxycycline Hyclate1212
Doxycycline MonohydrateDoxycycline Monohydrate1211
EstradiolEstradiol12suppressed
FentanylFentanyl12suppressed
Memantine Hcl ErMemantine Hcl12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl12suppressed
Tresiba Flextouch U-100Insulin Degludec12suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic12suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
Methylphenidate HclMethylphenidate 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 $25.76 · 1 records Baxter Healthcare Hillrom - Cardiac Ambulatory Monitor
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