Healthcare provider profile · identity verified

Phillip L. Stall, MD

Psychiatry · SUN PRAIRIE, WI · NPI 1336529932

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
Bupropion XlBupropion Hcl16434
ClonazepamClonazepam16038
Trazodone HclTrazodone Hcl13944
Quetiapine FumarateQuetiapine Fumarate13728
Fluoxetine HclFluoxetine Hcl12427
Duloxetine HclDuloxetine Hcl10928
LorazepamLorazepam10633
AripiprazoleAripiprazole9426
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine9326
AlprazolamAlprazolam9121
Buspirone HclBuspirone Hcl8423
LamotrigineLamotrigine6123
Prazosin HclPrazosin Hcl6012
OlanzapineOlanzapine55suppressed
GabapentinGabapentin5415
Venlafaxine Hcl ErVenlafaxine Hcl4817
Bupropion Hcl SrBupropion Hcl4615
Escitalopram OxalateEscitalopram Oxalate44suppressed
Atomoxetine HclAtomoxetine Hcl42suppressed
Sertraline HclSertraline Hcl4212
TopiramateTopiramate40suppressed
MirtazapineMirtazapine3714
Desvenlafaxine Succinate ErDesvenlafaxine Succinate36suppressed
Methylphenidate HclMethylphenidate Hcl35suppressed
DiazepamDiazepam31suppressed
Memantine HclMemantine Hcl31suppressed
Zolpidem TartrateZolpidem Tartrate30suppressed
Lurasidone HclLurasidone Hcl28suppressed
Olanzapine OdtOlanzapine27suppressed
Hydroxyzine HclHydroxyzine Hcl25suppressed
Doxepin HclDoxepin Hcl24suppressed
Fluvoxamine MaleateFluvoxamine Maleate22suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate2211
Propranolol HclPropranolol Hcl22suppressed
Venlafaxine HclVenlafaxine Hcl21suppressed
VyvanseLisdexamfetamine Dimesylate20suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl19suppressed
HaloperidolHaloperidol17suppressed
Lithium Carbonate ErLithium Carbonate17suppressed
RisperidoneRisperidone16suppressed
Ziprasidone HclZiprasidone Hcl16suppressed
Dexmethylphenidate HclDexmethylphenidate Hcl15suppressed
LoxapineLoxapine Succinate15suppressed
PregabalinPregabalin14suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine12suppressed
Divalproex Sodium ErDivalproex Sodium12suppressed
Donepezil HclDonepezil Hcl12suppressed
Dexmethylphenidate Hcl ErDexmethylphenidate Hcl11suppressed
IngrezzaValbenazine Tosylate11suppressed

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