Healthcare provider profile · identity verified

Mary A. Davis, NP

Nurse Practitioner · HAYWARD, WI · NPI 1851582357

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 Calcium26072
Losartan PotassiumLosartan Potassium21665
Amlodipine BesylateAmlodipine Besylate13945
Levothyroxine SodiumLevothyroxine Sodium12736
LisinoprilLisinopril11635
OmeprazoleOmeprazole10035
GabapentinGabapentin7119
Fluticasone PropionateFluticasone Propionate6824
Metoprolol SuccinateMetoprolol Succinate6016
Trazodone HclTrazodone Hcl5818
Rosuvastatin CalciumRosuvastatin Calcium5415
Albuterol Sulfate HfaAlbuterol Sulfate5119
SimvastatinSimvastatin5015
FurosemideFurosemide4817
HydrochlorothiazideHydrochlorothiazide4515
Metformin Hcl ErMetformin Hcl4215
Tamsulosin HclTamsulosin Hcl4211
AlprazolamAlprazolam39suppressed
OzempicSemaglutide39suppressed
AllopurinolAllopurinol37suppressed
Metoprolol TartrateMetoprolol Tartrate3714
Montelukast SodiumMontelukast Sodium37suppressed
Potassium ChloridePotassium Chloride3712
Metformin HclMetformin Hcl3411
Pantoprazole SodiumPantoprazole Sodium3313
FinasterideFinasteride29suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen29suppressed
Citalopram HbrCitalopram Hydrobromide27suppressed
MethocarbamolMethocarbamol2714
Doxycycline MonohydrateDoxycycline Monohydrate2516
Fluticasone-SalmeterolFluticasone Propion/Salmeterol25suppressed
AtenololAtenolol24suppressed
Venlafaxine Hcl ErVenlafaxine Hcl24suppressed
Duloxetine HclDuloxetine Hcl23suppressed
FamotidineFamotidine23suppressed
AmoxicillinAmoxicillin2213
Buspirone HclBuspirone Hcl22suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim22suppressed
Tramadol HclTramadol Hcl22suppressed
LorazepamLorazepam21suppressed
PrednisonePrednisone2117
Sertraline HclSertraline Hcl21suppressed
Fluoxetine HclFluoxetine Hcl20suppressed
CelecoxibCelecoxib19suppressed
Escitalopram OxalateEscitalopram Oxalate19suppressed
AzithromycinAzithromycin1814
Clonidine HclClonidine Hcl17suppressed
ClopidogrelClopidogrel Bisulfate16suppressed
EliquisApixaban16suppressed
SpironolactoneSpironolactone16suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1511
Pravastatin SodiumPravastatin Sodium15suppressed
BaclofenBaclofen14suppressed
Propranolol HclPropranolol Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
DiazepamDiazepam13suppressed
MounjaroTirzepatide13suppressed
CarvedilolCarvedilol12suppressed
LevetiracetamLevetiracetam12suppressed
Zolpidem Tartrate ErZolpidem Tartrate12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed
ValacyclovirValacyclovir 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