Healthcare provider profile · identity verified

Leo E Bay, DO

Family Practice · ASHLAND, WI · NPI 1659752285

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 Calcium17554
LisinoprilLisinopril15542
Warfarin SodiumWarfarin Sodium130suppressed
Amlodipine BesylateAmlodipine Besylate11335
Metoprolol SuccinateMetoprolol Succinate10629
OmeprazoleOmeprazole10128
Levothyroxine SodiumLevothyroxine Sodium9124
Metformin HclMetformin Hcl8825
Losartan PotassiumLosartan Potassium7823
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7411
HydrochlorothiazideHydrochlorothiazide7224
FurosemideFurosemide7025
GabapentinGabapentin6723
Tamsulosin HclTamsulosin Hcl6520
Potassium ChloridePotassium Chloride6420
Montelukast SodiumMontelukast Sodium6213
SimvastatinSimvastatin6112
Hydroxyzine HclHydroxyzine Hcl5811
Tizanidine HclTizanidine Hcl5511
Escitalopram OxalateEscitalopram Oxalate49suppressed
AllopurinolAllopurinol42suppressed
Metoprolol TartrateMetoprolol Tartrate4117
Sertraline HclSertraline Hcl41suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3918
BaclofenBaclofen3812
LevetiracetamLevetiracetam37suppressed
ChlorthalidoneChlorthalidone36suppressed
Duloxetine HclDuloxetine Hcl3511
Metformin Hcl ErMetformin Hcl35suppressed
Tramadol HclTramadol Hcl34suppressed
JardianceEmpagliflozin32suppressed
Diclofenac SodiumDiclofenac Sodium31suppressed
XareltoRivaroxaban30suppressed
OzempicSemaglutide28suppressed
Trazodone HclTrazodone Hcl28suppressed
TrulicityDulaglutide27suppressed
Fluticasone PropionateFluticasone Propionate2411
PrednisonePrednisone2420
Amitriptyline HclAmitriptyline Hcl22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium22suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog22suppressed
SpironolactoneSpironolactone22suppressed
Ventolin HfaAlbuterol Sulfate22suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
Donepezil HclDonepezil Hcl21suppressed
EzetimibeEzetimibe21suppressed
Buspirone HclBuspirone Hcl20suppressed
PregabalinPregabalin19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
ClonazepamClonazepam17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol17suppressed
Alendronate SodiumAlendronate Sodium16suppressed
Glipizide ErGlipizide15suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
Semglee (Yfgn) PenInsulin Glargine-Yfgn14suppressed
Solifenacin SuccinateSolifenacin Succinate14suppressed
Advair HfaFluticasone Propion/Salmeterol13suppressed
BreynaBudesonide/Formoterol Fumarate13suppressed
EliquisApixaban13suppressed
MirtazapineMirtazapine13suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
Midodrine HclMidodrine Hcl12suppressed
NystatinNystatin12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
CarvedilolCarvedilol11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
Venlafaxine HclVenlafaxine 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