Healthcare provider profile · identity verified

Leon Douglas Williams, M.D.

Family Practice · INNIS, LA · NPI 1386677102

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 Besylate17689
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen17438
Atorvastatin CalciumAtorvastatin Calcium17076
Losartan PotassiumLosartan Potassium9439
Albuterol Sulfate HfaAlbuterol Sulfate9046
FamotidineFamotidine8848
Levothyroxine SodiumLevothyroxine Sodium8637
GabapentinGabapentin7538
Tamsulosin HclTamsulosin Hcl7533
LisinoprilLisinopril7333
Metoprolol TartrateMetoprolol Tartrate6428
FurosemideFurosemide6329
HydrochlorothiazideHydrochlorothiazide5922
Metformin HclMetformin Hcl5121
Pantoprazole SodiumPantoprazole Sodium5119
IbuprofenIbuprofen5026
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4118
Fluticasone PropionateFluticasone Propionate3920
CelecoxibCelecoxib37suppressed
Trazodone HclTrazodone Hcl3715
OmeprazoleOmeprazole3614
BaclofenBaclofen34suppressed
Hydralazine HclHydralazine Hcl3314
Potassium ChloridePotassium Chloride3214
Escitalopram OxalateEscitalopram Oxalate31suppressed
GlipizideGlipizide3017
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide2912
MeloxicamMeloxicam2921
Advair HfaFluticasone Propion/Salmeterol28suppressed
Ondansetron HclOndansetron Hcl2811
CarvedilolCarvedilol2713
Propranolol HclPropranolol Hcl27suppressed
AllopurinolAllopurinol25suppressed
Metformin Hcl ErMetformin Hcl2517
Wixela InhubFluticasone Propion/Salmeterol25suppressed
SimvastatinSimvastatin2212
FinasterideFinasteride19suppressed
Metoprolol SuccinateMetoprolol Succinate19suppressed
Spiriva RespimatTiotropium Bromide19suppressed
SpironolactoneSpironolactone19suppressed
Hydroxyzine HclHydroxyzine Hcl18suppressed
PregabalinPregabalin18suppressed
Sertraline HclSertraline Hcl18suppressed
AlvescoCiclesonide17suppressed
AtenololAtenolol17suppressed
Isosorbide DinitrateIsosorbide Dinitrate17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1711
ColchicineColchicine16suppressed
LactuloseLactulose16suppressed
BumetanideBumetanide15suppressed
Clonidine HclClonidine Hcl15suppressed
EliquisApixaban15suppressed
Nortriptyline HclNortriptyline Hcl15suppressed
Chlorhexidine GluconateChlorhexidine Gluconate14suppressed
ClopidogrelClopidogrel Bisulfate14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
FluocinonideFluocinonide14suppressed
NitroglycerinNitroglycerin14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
MirtazapineMirtazapine13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Promethazine HclPromethazine Hcl13suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1212
Ciprofloxacin HclCiprofloxacin Hcl1211
Fluoxetine HclFluoxetine Hcl12suppressed
LatanoprostLatanoprost12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
PrednisonePrednisone12suppressed
CephalexinCephalexin11suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
GlimepirideGlimepiride11suppressed
Humulin NInsulin Nph Human Isophane11suppressed
Meclizine HclMeclizine Hcl11suppressed
Montelukast SodiumMontelukast Sodium11suppressed
OzempicSemaglutide11suppressed

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