Healthcare provider profile · identity verified

Mara Pheister, M.D.

Psychiatry · MILWAUKEE, WI · NPI 1639208440

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
ClonazepamClonazepam26332
Quetiapine FumarateQuetiapine Fumarate21526
Trazodone HclTrazodone Hcl19941
AripiprazoleAripiprazole17231
Bupropion XlBupropion Hcl16136
Duloxetine HclDuloxetine Hcl13733
Venlafaxine Hcl ErVenlafaxine Hcl12221
ClozapineClozapine11911
LamotrigineLamotrigine11523
Sertraline HclSertraline Hcl11031
Fluoxetine HclFluoxetine Hcl9724
Escitalopram OxalateEscitalopram Oxalate9325
RisperidoneRisperidone8011
GabapentinGabapentin58suppressed
AlprazolamAlprazolam5313
Quetiapine Fumarate ErQuetiapine Fumarate53suppressed
Hydroxyzine HclHydroxyzine Hcl4719
MirtazapineMirtazapine4717
Naltrexone HclNaltrexone Hcl41suppressed
VyvanseLisdexamfetamine Dimesylate41suppressed
BelsomraSuvorexant40suppressed
Divalproex Sodium ErDivalproex Sodium40suppressed
LorazepamLorazepam3912
Clonidine HclClonidine Hcl38suppressed
Buspirone HclBuspirone Hcl3611
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine36suppressed
Lithium CarbonateLithium Carbonate35suppressed
Ziprasidone HclZiprasidone Hcl34suppressed
Bupropion Hcl SrBupropion Hcl33suppressed
Methylphenidate ErMethylphenidate Hcl30suppressed
EszopicloneEszopiclone29suppressed
DiazepamDiazepam25suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate25suppressed
Divalproex SodiumDivalproex Sodium24suppressed
Paroxetine HclParoxetine Hcl23suppressed
Zolpidem TartrateZolpidem Tartrate23suppressed
OlanzapineOlanzapine22suppressed
TrintellixVortioxetine Hydrobromide21suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate20suppressed
Memantine HclMemantine Hcl20suppressed
Vilazodone HclVilazodone Hcl19suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine18suppressed
Haloperidol DecanoateHaloperidol Decanoate18suppressed
Citalopram HbrCitalopram Hydrobromide17suppressed
Abilify MaintenaAripiprazole15suppressed
CarbamazepineCarbamazepine15suppressed
Prazosin HclPrazosin Hcl15suppressed
SecuadoAsenapine14suppressed
HaloperidolHaloperidol13suppressed
Memantine Hcl ErMemantine Hcl13suppressed
VraylarCariprazine Hcl13suppressed
Hydroxyzine PamoateHydroxyzine Pamoate12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
ZaleplonZaleplon12suppressed
Doxepin HclDoxepin Hcl11suppressed
Lurasidone HclLurasidone 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