Healthcare provider profile · identity verified

Melvin A Haggart, MD

Psychiatry · JEFFERSON, WI · NPI 1902919087

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
ClozapineClozapine81135
OlanzapineOlanzapine48741
Benztropine MesylateBenztropine Mesylate43648
Sertraline HclSertraline Hcl39853
RisperidoneRisperidone39235
Quetiapine FumarateQuetiapine Fumarate38333
Fluoxetine HclFluoxetine Hcl34535
Divalproex Sodium ErDivalproex Sodium30635
GabapentinGabapentin30634
Trazodone HclTrazodone Hcl29047
Prazosin HclPrazosin Hcl27732
Buspirone HclBuspirone Hcl26131
Fluphenazine HclFluphenazine Hcl25927
ClonazepamClonazepam24238
HaloperidolHaloperidol22925
VraylarCariprazine Hcl20828
Bupropion XlBupropion Hcl19221
Divalproex SodiumDivalproex Sodium19218
LamotrigineLamotrigine18222
Bupropion Hcl SrBupropion Hcl17424
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl17019
Escitalopram OxalateEscitalopram Oxalate17021
AripiprazoleAripiprazole16725
Lithium CarbonateLithium Carbonate15719
Lurasidone HclLurasidone Hcl15416
LorazepamLorazepam15122
Invega SustennaPaliperidone Palmitate14916
Hydroxyzine HclHydroxyzine Hcl14430
Duloxetine HclDuloxetine Hcl14114
AlprazolamAlprazolam13419
BelsomraSuvorexant12219
Carbamazepine ErCarbamazepine12212
Clomipramine HclClomipramine Hcl118suppressed
Haloperidol DecanoateHaloperidol Decanoate116suppressed
Venlafaxine Hcl ErVenlafaxine Hcl10712
Trifluoperazine HclTrifluoperazine Hcl10013
MirtazapineMirtazapine91suppressed
Methylphenidate HclMethylphenidate Hcl87suppressed
TemazepamTemazepam79suppressed
Citalopram HbrCitalopram Hydrobromide75suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine75suppressed
Nortriptyline HclNortriptyline Hcl73suppressed
Amitriptyline HclAmitriptyline Hcl7111
OxcarbazepineOxcarbazepine71suppressed
PrimidonePrimidone69suppressed
Abilify MaintenaAripiprazole67suppressed
TopiramateTopiramate62suppressed
Paroxetine HclParoxetine Hcl58suppressed
Olanzapine OdtOlanzapine55suppressed
LoxapineLoxapine Succinate54suppressed
Zolpidem TartrateZolpidem Tartrate54suppressed
Ziprasidone HclZiprasidone Hcl50suppressed
FetzimaLevomilnacipran Hcl48suppressed
DiazepamDiazepam47suppressed
Propranolol HclPropranolol Hcl44suppressed
Asenapine MaleateAsenapine Maleate42suppressed
Bupropion HclBupropion Hcl41suppressed
Naltrexone HclNaltrexone Hcl41suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine38suppressed
Lithium Carbonate ErLithium Carbonate37suppressed
LybalviOlanzapine/Samidorphan Malate37suppressed
Varenicline TartrateVarenicline Tartrate36suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl31suppressed
Fluphenazine DecanoateFluphenazine Decanoate30suppressed
Risperidone ErRisperidone Microspheres30suppressed
Imipramine HclImipramine Hcl29suppressed
Paliperidone ErPaliperidone29suppressed
Clonidine HclClonidine Hcl28suppressed
Dexmethylphenidate Hcl ErDexmethylphenidate Hcl27suppressed
Trihexyphenidyl HclTrihexyphenidyl Hcl26suppressed
Hydroxyzine PamoateHydroxyzine Pamoate25suppressed
VyvanseLisdexamfetamine Dimesylate25suppressed
PerphenazinePerphenazine24suppressed
Protriptyline HclProtriptyline Hcl24suppressed
Valproic AcidValproic Acid (As Sodium Salt)23suppressed
Risperdal ConstaRisperidone Microspheres22suppressed
Ropinirole HclRopinirole Hcl22suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl22suppressed
Atomoxetine HclAtomoxetine Hcl21suppressed
AustedoDeutetrabenazine21suppressed
Lisdexamfetamine DimesylateLisdexamfetamine Dimesylate19suppressed
RexultiBrexpiprazole18suppressed
CarbamazepineCarbamazepine17suppressed
Desmopressin AcetateDesmopressin Acetate17suppressed
IngrezzaValbenazine Tosylate17suppressed
FamotidineFamotidine16suppressed
Dexmethylphenidate HclDexmethylphenidate Hcl14suppressed
ValacyclovirValacyclovir Hcl14suppressed
CaplytaLumateperone Tosylate13suppressed
Methylphenidate ErMethylphenidate Hcl13suppressed
Venlafaxine HclVenlafaxine Hcl13suppressed
Vilazodone HclVilazodone Hcl13suppressed
Memantine HclMemantine Hcl12suppressed
ZubsolvBuprenorphine Hcl/Naloxone Hcl12suppressed
Buprenorphine HclBuprenorphine 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