Healthcare provider profile · identity verified

William A Willis, M.D.

Allopathic & Osteopathic Physicians|General Practice · POTEAU, OK · NPI 1205875846

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 A Willis, M.D. received $8.92 in general payments during 2025 across 1 reported records.

Axsome Therapeutics, Inc. 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

$8.92

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
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $8.92100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$8.921

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. $8.92 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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1545314
Oxycodone HclOxycodone Hcl627100
Zolpidem TartrateZolpidem Tartrate42868
GabapentinGabapentin41462
LisinoprilLisinopril24461
Albuterol Sulfate HfaAlbuterol Sulfate21540
OmeprazoleOmeprazole20748
Levothyroxine SodiumLevothyroxine Sodium18846
AlprazolamAlprazolam16919
Tamsulosin HclTamsulosin Hcl16932
Atorvastatin CalciumAtorvastatin Calcium16656
Potassium ChloridePotassium Chloride16648
Metoprolol TartrateMetoprolol Tartrate16431
FurosemideFurosemide16339
Losartan PotassiumLosartan Potassium15036
Clonidine HclClonidine Hcl14133
Amlodipine BesylateAmlodipine Besylate14034
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen12258
Pantoprazole SodiumPantoprazole Sodium11732
ClopidogrelClopidogrel Bisulfate11225
Duloxetine HclDuloxetine Hcl10822
Trelegy ElliptaFluticasone/Umeclidin/Vilanter10114
HydrochlorothiazideHydrochlorothiazide9922
Ondansetron OdtOndansetron9430
Metformin HclMetformin Hcl9222
PregabalinPregabalin9037
BaclofenBaclofen8524
CarvedilolCarvedilol8016
Montelukast SodiumMontelukast Sodium7713
LorazepamLorazepam7411
Metoprolol SuccinateMetoprolol Succinate7117
Sertraline HclSertraline Hcl7118
MeloxicamMeloxicam6718
Tramadol HclTramadol Hcl6728
Fluticasone PropionateFluticasone Propionate61suppressed
Ciprofloxacin HclCiprofloxacin Hcl5942
AtenololAtenolol5711
Pravastatin SodiumPravastatin Sodium5517
AllopurinolAllopurinol5411
EliquisApixaban54suppressed
Escitalopram OxalateEscitalopram Oxalate5416
Morphine Sulfate ErMorphine Sulfate52suppressed
Ventolin HfaAlbuterol Sulfate5215
EszopicloneEszopiclone5114
MirtazapineMirtazapine49suppressed
Ropinirole HclRopinirole Hcl48suppressed
OzempicSemaglutide4612
Quetiapine FumarateQuetiapine Fumarate45suppressed
Hydroxyzine HclHydroxyzine Hcl4411
AzithromycinAzithromycin4330
AmoxicillinAmoxicillin4134
Trazodone HclTrazodone Hcl41suppressed
Nebivolol HclNebivolol Hcl39suppressed
Doxycycline HyclateDoxycycline Hyclate3828
Bupropion XlBupropion Hcl37suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide37suppressed
Ranolazine ErRanolazine37suppressed
Hydralazine HclHydralazine Hcl36suppressed
Combivent RespimatIpratropium/Albuterol Sulfate35suppressed
Hydromorphone HclHydromorphone Hcl34suppressed
Amitriptyline HclAmitriptyline Hcl33suppressed
Buspirone HclBuspirone Hcl31suppressed
Dicyclomine HclDicyclomine Hcl31suppressed
IbuprofenIbuprofen31suppressed
Citalopram HbrCitalopram Hydrobromide30suppressed
Oxybutynin ChlorideOxybutynin Chloride30suppressed
Sumatriptan SuccinateSumatriptan Succinate30suppressed
SynthroidLevothyroxine Sodium30suppressed
EstradiolEstradiol29suppressed
GlipizideGlipizide29suppressed
Rosuvastatin CalciumRosuvastatin Calcium29suppressed
SucralfateSucralfate2912
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2724
Esomeprazole MagnesiumEsomeprazole Magnesium27suppressed
Breo ElliptaFluticasone/Vilanterol26suppressed
Carbidopa-LevodopaCarbidopa/Levodopa26suppressed
NitroglycerinNitroglycerin2614
Lantus SolostarInsulin Glargine,hum.Rec.Anlog25suppressed
LovastatinLovastatin25suppressed
Terazosin HclTerazosin Hcl25suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine24suppressed
FluconazoleFluconazole24suppressed
SymbicortBudesonide/Formoterol Fumarate24suppressed
BumetanideBumetanide22suppressed
TemazepamTemazepam22suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr21suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
Humalog Kwikpen U-100Insulin Lispro20suppressed
SimvastatinSimvastatin20suppressed
Tizanidine HclTizanidine Hcl20suppressed
CelecoxibCelecoxib19suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate19suppressed
Nifedipine ErNifedipine19suppressed
Diclofenac SodiumDiclofenac Sodium18suppressed
MethylprednisoloneMethylprednisolone1814
Ondansetron HclOndansetron Hcl18suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1815
TopiramateTopiramate18suppressed
ClonazepamClonazepam17suppressed
Glipizide ErGlipizide17suppressed
MovantikNaloxegol Oxalate17suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst17suppressed
AcyclovirAcyclovir16suppressed
CephalexinCephalexin1612
Metformin Hcl ErMetformin Hcl16suppressed
Venlafaxine Hcl ErVenlafaxine Hcl16suppressed
GlimepirideGlimepiride15suppressed
MupirocinMupirocin15suppressed
BuprenorphineBuprenorphine14suppressed
FetzimaLevomilnacipran Hcl14suppressed
Megestrol AcetateMegestrol Acetate14suppressed
Promethazine HclPromethazine Hcl14suppressed
ValsartanValsartan14suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa13suppressed
DiazepamDiazepam13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
CalcitriolCalcitriol12suppressed
Clindamycin HclClindamycin Hcl12suppressed
EzetimibeEzetimibe12suppressed
FamotidineFamotidine12suppressed
FenofibrateFenofibrate12suppressed
FinasterideFinasteride12suppressed
GemtesaVibegron12suppressed
Ketorolac TromethamineKetorolac Tromethamine12suppressed
LinzessLinaclotide12suppressed
Meclizine HclMeclizine Hcl12suppressed
Methadone HclMethadone Hcl12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
MyrbetriqMirabegron11suppressed

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 $8.92 · 1 records Axsome Therapeutics, Inc. Auvelity
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