Healthcare provider profile · identity verified

William P Powell, D.O.

Allopathic & Osteopathic Physicians|Neuromusculoskeletal Medicine & OMM · ASHLAND, OR · NPI 1285779439

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 P Powell, D.O. received $179.02 in general payments during 2025 across 4 reported records.

Madrigal Pharmaceuticals accounted for 91.1% 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

$179.02

4 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
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $163.0191.1%32025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $16.018.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$179.024

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
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $163.01 3 2025
Source payment records
DAYBUE
Normalized: daybue
Drug ACADIA Pharmaceuticals Inc $16.01 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
Levothyroxine SodiumLevothyroxine Sodium30061
LisinoprilLisinopril13236
Losartan PotassiumLosartan Potassium12229
AlprazolamAlprazolam8616
Amlodipine BesylateAmlodipine Besylate7620
Oxycodone HclOxycodone Hcl75suppressed
GabapentinGabapentin7116
HydrochlorothiazideHydrochlorothiazide6817
Rosuvastatin CalciumRosuvastatin Calcium6116
PregabalinPregabalin51suppressed
Atorvastatin CalciumAtorvastatin Calcium4813
Liothyronine SodiumLiothyronine Sodium4711
LorazepamLorazepam46suppressed
CarvedilolCarvedilol41suppressed
DiazepamDiazepam41suppressed
Warfarin SodiumWarfarin Sodium40suppressed
Morphine Sulfate ErMorphine Sulfate38suppressed
FurosemideFurosemide37suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3713
AtenololAtenolol35suppressed
CelecoxibCelecoxib34suppressed
Metformin HclMetformin Hcl34suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3321
BaclofenBaclofen3215
SynthroidLevothyroxine Sodium32suppressed
Escitalopram OxalateEscitalopram Oxalate29suppressed
Trazodone HclTrazodone Hcl29suppressed
ValacyclovirValacyclovir Hcl29suppressed
Testosterone CypionateTestosterone Cypionate28suppressed
Tramadol HclTramadol Hcl28suppressed
Zolpidem TartrateZolpidem Tartrate26suppressed
Citalopram HbrCitalopram Hydrobromide25suppressed
Morphine SulfateMorphine Sulfate25suppressed
EliquisApixaban23suppressed
LamotrigineLamotrigine22suppressed
AcyclovirAcyclovir19suppressed
AllopurinolAllopurinol19suppressed
Metoprolol SuccinateMetoprolol Succinate19suppressed
OmeprazoleOmeprazole19suppressed
ClopidogrelClopidogrel Bisulfate18suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
MounjaroTirzepatide18suppressed
OzempicSemaglutide18suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1711
Metoprolol TartrateMetoprolol Tartrate16suppressed
Tamsulosin HclTamsulosin Hcl16suppressed
Hydroxyzine HclHydroxyzine Hcl14suppressed
Sertraline HclSertraline Hcl14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
AzithromycinAzithromycin1312
Buprenorphine HclBuprenorphine Hcl13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
EstradiolEstradiol13suppressed
MeloxicamMeloxicam13suppressed
MirtazapineMirtazapine13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Midodrine HclMidodrine Hcl12suppressed
NystatinNystatin12suppressed
ProgesteroneProgesterone, Micronized12suppressed
Dextroamphetamine Sulfate ErDextroamphetamine Sulfate11suppressed
Duloxetine HclDuloxetine Hcl11suppressed
Estradiol (Twice Weekly)Estradiol11suppressed
GlipizideGlipizide11suppressed
LevetiracetamLevetiracetam11suppressed
LovastatinLovastatin11suppressed
OxcarbazepineOxcarbazepine11suppressed
Potassium ChloridePotassium Chloride11suppressed
Promethazine HclPromethazine Hcl11suppressed
RybelsusSemaglutide11suppressed
TestosteroneTestosterone11suppressed
TrulicityDulaglutide11suppressed

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 $179.02 · 4 records Madrigal Pharmaceuticals DAYBUE, REZDIFFRA
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