Healthcare provider profile · identity verified

Arthur Michael Williams, MD

Internal Medicine · HUNTSVILLE, AL · NPI 1811949753

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
Amlodipine BesylateAmlodipine Besylate17168
Atorvastatin CalciumAtorvastatin Calcium13558
Losartan PotassiumLosartan Potassium10846
OmeprazoleOmeprazole9635
Levothyroxine SodiumLevothyroxine Sodium9341
SimvastatinSimvastatin7832
Pantoprazole SodiumPantoprazole Sodium7029
Metformin HclMetformin Hcl6731
Metoprolol SuccinateMetoprolol Succinate5923
HydrochlorothiazideHydrochlorothiazide5725
FurosemideFurosemide5419
Tamsulosin HclTamsulosin Hcl5020
AllopurinolAllopurinol4419
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4218
Olmesartan MedoxomilOlmesartan Medoxomil4221
Zolpidem TartrateZolpidem Tartrate40suppressed
Pravastatin SodiumPravastatin Sodium3916
Potassium ChloridePotassium Chloride3715
JardianceEmpagliflozin3512
MounjaroTirzepatide3511
Trazodone HclTrazodone Hcl3513
Fluticasone PropionateFluticasone Propionate3215
Hydralazine HclHydralazine Hcl2914
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide28suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan25suppressed
OzempicSemaglutide25suppressed
Tramadol HclTramadol Hcl2512
CarvedilolCarvedilol24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
SpironolactoneSpironolactone24suppressed
LisinoprilLisinopril2314
TradjentaLinagliptin23suppressed
GlimepirideGlimepiride22suppressed
Metformin Hcl ErMetformin Hcl22suppressed
PrednisonePrednisone22suppressed
Duloxetine HclDuloxetine Hcl21suppressed
JanuviaSitagliptin Phosphate21suppressed
CelecoxibCelecoxib20suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide19suppressed
ClopidogrelClopidogrel Bisulfate18suppressed
Labetalol HclLabetalol Hcl18suppressed
TelmisartanTelmisartan18suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril17suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip17suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide17suppressed
Rosuvastatin CalciumRosuvastatin Calcium17suppressed
Sertraline HclSertraline Hcl17suppressed
Olmesartan-Amlodipine-HctzOlmesartan/Amlodipin/Hcthiazid16suppressed
Clonidine HclClonidine Hcl15suppressed
EzetimibeEzetimibe15suppressed
Glipizide-MetforminGlipizide/Metformin Hcl15suppressed
Nebivolol HclNebivolol Hcl15suppressed
FarxigaDapagliflozin Propanediol14suppressed
GlipizideGlipizide14suppressed
Metoprolol TartrateMetoprolol Tartrate14suppressed
Montelukast SodiumMontelukast Sodium14suppressed
RybelsusSemaglutide14suppressed
TrintellixVortioxetine Hydrobromide14suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med13suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads13suppressed
Klor-Con M20Potassium Chloride13suppressed
EliquisApixaban12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12suppressed
MeloxicamMeloxicam12suppressed
Metoprolol-HydrochlorothiazideMetoprolol/Hydrochlorothiazide12suppressed
Verapamil ErVerapamil Hcl12suppressed
ClonazepamClonazepam11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed

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