Healthcare provider profile · identity verified

Robert Loiben, M.D.

Psychiatry · MILWAUKEE, WI · NPI 1346302072

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
Zolpidem TartrateZolpidem Tartrate21530
LorazepamLorazepam19832
Bupropion XlBupropion Hcl19435
Quetiapine FumarateQuetiapine Fumarate18726
ClonazepamClonazepam18026
LamotrigineLamotrigine16629
Escitalopram OxalateEscitalopram Oxalate15330
AlprazolamAlprazolam14627
Trazodone HclTrazodone Hcl14428
Duloxetine HclDuloxetine Hcl13829
Fluoxetine HclFluoxetine Hcl12119
Sertraline HclSertraline Hcl11526
MirtazapineMirtazapine11017
Venlafaxine Hcl ErVenlafaxine Hcl9313
AripiprazoleAripiprazole8713
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine7812
RisperidoneRisperidone72suppressed
Buspirone HclBuspirone Hcl7016
Desvenlafaxine Succinate ErDesvenlafaxine Succinate68suppressed
DiazepamDiazepam68suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl64suppressed
Bupropion Hcl SrBupropion Hcl6011
Paroxetine HclParoxetine Hcl5213
GabapentinGabapentin51suppressed
OlanzapineOlanzapine49suppressed
EszopicloneEszopiclone31suppressed
Methylphenidate HclMethylphenidate Hcl28suppressed
Hydroxyzine HclHydroxyzine Hcl27suppressed
RexultiBrexpiprazole25suppressed
Quetiapine Fumarate ErQuetiapine Fumarate24suppressed
TemazepamTemazepam24suppressed
Fluvoxamine MaleateFluvoxamine Maleate23suppressed
Citalopram HbrCitalopram Hydrobromide22suppressed
IngrezzaValbenazine Tosylate22suppressed
Vilazodone HclVilazodone Hcl22suppressed
CaplytaLumateperone Tosylate21suppressed
Doxepin HclDoxepin Hcl20suppressed
Venlafaxine HclVenlafaxine Hcl18suppressed
Lurasidone HclLurasidone Hcl17suppressed
Ziprasidone HclZiprasidone Hcl17suppressed
CarbamazepineCarbamazepine16suppressed
Imipramine HclImipramine Hcl16suppressed
VyvanseLisdexamfetamine Dimesylate16suppressed
BelsomraSuvorexant15suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Dextroamphetamine SulfateDextroamphetamine Sulfate13suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine13suppressed
Lithium Carbonate ErLithium Carbonate13suppressed
AbilifyAripiprazole12suppressed
ClozapineClozapine12suppressed
Guanfacine Hcl ErGuanfacine Hcl12suppressed
Methylphenidate ErMethylphenidate Hcl12suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl12suppressed
ThiothixeneThiothixene12suppressed
TrintellixVortioxetine Hydrobromide12suppressed
Benztropine MesylateBenztropine Mesylate11suppressed
ZaleplonZaleplon11suppressed

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