Healthcare provider profile · identity verified

Daniel Williams

Family Practice · LIBBY, MT · NPI 1184155442

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium35488
LisinoprilLisinopril22253
Metformin HclMetformin Hcl18543
OmeprazoleOmeprazole16949
Losartan PotassiumLosartan Potassium16349
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16140
Amlodipine BesylateAmlodipine Besylate14639
Tamsulosin HclTamsulosin Hcl14333
FurosemideFurosemide12828
Duloxetine HclDuloxetine Hcl12129
Trazodone HclTrazodone Hcl11628
Levothyroxine SodiumLevothyroxine Sodium11028
Metoprolol SuccinateMetoprolol Succinate10931
Rosuvastatin CalciumRosuvastatin Calcium10329
HydrochlorothiazideHydrochlorothiazide9525
GabapentinGabapentin8624
Potassium ChloridePotassium Chloride8219
Montelukast SodiumMontelukast Sodium7211
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen7112
MeloxicamMeloxicam6822
PregabalinPregabalin6419
Sertraline HclSertraline Hcl6415
Fluticasone PropionateFluticasone Propionate5619
JardianceEmpagliflozin54suppressed
PrednisonePrednisone5226
Zolpidem TartrateZolpidem Tartrate51suppressed
Ropinirole HclRopinirole Hcl50suppressed
Tramadol HclTramadol Hcl4811
Oxycodone HclOxycodone Hcl4712
LorazepamLorazepam4616
OzempicSemaglutide46suppressed
Metoprolol TartrateMetoprolol Tartrate4415
SimvastatinSimvastatin4413
Pravastatin SodiumPravastatin Sodium42suppressed
EliquisApixaban41suppressed
Amitriptyline HclAmitriptyline Hcl38suppressed
SpironolactoneSpironolactone37suppressed
Metformin Hcl ErMetformin Hcl3611
Pantoprazole SodiumPantoprazole Sodium3512
Alendronate SodiumAlendronate Sodium34suppressed
ClopidogrelClopidogrel Bisulfate34suppressed
JanuviaSitagliptin Phosphate34suppressed
ChlorthalidoneChlorthalidone32suppressed
FamotidineFamotidine31suppressed
GlimepirideGlimepiride31suppressed
IbuprofenIbuprofen3114
Triamcinolone AcetonideTriamcinolone Acetonide3116
ClonazepamClonazepam3011
Albuterol Sulfate HfaAlbuterol Sulfate2912
Cyclobenzaprine HclCyclobenzaprine Hcl2911
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
Bupropion XlBupropion Hcl26suppressed
Fluoxetine HclFluoxetine Hcl26suppressed
Hydroxyzine HclHydroxyzine Hcl26suppressed
TemazepamTemazepam26suppressed
AlprazolamAlprazolam24suppressed
AzithromycinAzithromycin2313
Morphine Sulfate ErMorphine Sulfate23suppressed
TorsemideTorsemide23suppressed
FentanylFentanyl22suppressed
Oxybutynin Chloride ErOxybutynin Chloride22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog21suppressed
CelecoxibCelecoxib21suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
Bupropion Hcl SrBupropion Hcl19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
Testosterone CypionateTestosterone Cypionate19suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril18suppressed
LovastatinLovastatin18suppressed
MyrbetriqMirabegron18suppressed
Tizanidine HclTizanidine Hcl18suppressed
AllopurinolAllopurinol17suppressed
CephalexinCephalexin17suppressed
Clonidine HclClonidine Hcl17suppressed
Invega SustennaPaliperidone Palmitate17suppressed
Morphine SulfateMorphine Sulfate17suppressed
Propranolol HclPropranolol Hcl17suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
AcyclovirAcyclovir16suppressed
Benazepril HclBenazepril Hcl16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
Citalopram HbrCitalopram Hydrobromide15suppressed
FinasterideFinasteride15suppressed
Ondansetron OdtOndansetron15suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15suppressed
AripiprazoleAripiprazole14suppressed
ClotrimazoleClotrimazole14suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine14suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
EzetimibeEzetimibe13suppressed
Fesoterodine Fumarate ErFesoterodine Fumarate13suppressed
Repatha SureclickEvolocumab13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
TopiramateTopiramate12suppressed
Ciprofloxacin HclCiprofloxacin 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
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