Healthcare provider profile · identity verified

Thomas Chaffee, M.D.

Psychiatry · KANSAS CITY, MO · NPI 1053767616

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
ClozapineClozapine140suppressed
Escitalopram OxalateEscitalopram Oxalate6812
ClonazepamClonazepam6617
Fluoxetine HclFluoxetine Hcl60suppressed
Trazodone HclTrazodone Hcl5816
Buspirone HclBuspirone Hcl5711
Duloxetine HclDuloxetine Hcl52suppressed
Zolpidem TartrateZolpidem Tartrate50suppressed
AripiprazoleAripiprazole45suppressed
Bupropion XlBupropion Hcl45suppressed
Sertraline HclSertraline Hcl44suppressed
Venlafaxine Hcl ErVenlafaxine Hcl37suppressed
GabapentinGabapentin36suppressed
Invega SustennaPaliperidone Palmitate36suppressed
Abilify MaintenaAripiprazole35suppressed
EszopicloneEszopiclone28suppressed
Metformin HclMetformin Hcl28suppressed
LorazepamLorazepam27suppressed
AlprazolamAlprazolam25suppressed
Doxepin HclDoxepin Hcl23suppressed
DiazepamDiazepam22suppressed
Hydroxyzine PamoateHydroxyzine Pamoate2211
BelsomraSuvorexant21suppressed
Benztropine MesylateBenztropine Mesylate19suppressed
Hydroxyzine HclHydroxyzine Hcl19suppressed
Prazosin HclPrazosin Hcl19suppressed
Divalproex Sodium ErDivalproex Sodium18suppressed
RisperidoneRisperidone18suppressed
Lurasidone HclLurasidone Hcl17suppressed
OlanzapineOlanzapine1611
TopiramateTopiramate16suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine14suppressed
Lithium Carbonate ErLithium Carbonate14suppressed
Methylphenidate ErMethylphenidate Hcl14suppressed
MirtazapineMirtazapine14suppressed
Olanzapine OdtOlanzapine14suppressed
TemazepamTemazepam14suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
VraylarCariprazine Hcl12suppressed
Diphenhydramine HclDiphenhydramine Hcl11suppressed
Haloperidol DecanoateHaloperidol Decanoate11suppressed
Varenicline TartrateVarenicline Tartrate11suppressed

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