Healthcare provider profile · identity verified

Mark T Szmanda, MD

Neurology · RHINELANDER, WI · NPI 1912060971

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
GabapentinGabapentin47987
Carbidopa-LevodopaCarbidopa/Levodopa473119
LevetiracetamLevetiracetam41780
Memantine HclMemantine Hcl31959
LamotrigineLamotrigine30644
Donepezil HclDonepezil Hcl24851
TopiramateTopiramate24539
Aimovig AutoinjectorErenumab-Aooe24037
Emgality PenGalcanezumab-Gnlm19431
Duloxetine HclDuloxetine Hcl18330
PrimidonePrimidone16733
PregabalinPregabalin14818
LacosamideLacosamide14116
Nurtec OdtRimegepant Sulfate13529
Sumatriptan SuccinateSumatriptan Succinate13524
CarbamazepineCarbamazepine12737
Carbidopa-Levodopa ErCarbidopa/Levodopa12229
Escitalopram OxalateEscitalopram Oxalate11428
Ropinirole HclRopinirole Hcl10919
Tizanidine HclTizanidine Hcl10929
BaclofenBaclofen10123
Cyclobenzaprine HclCyclobenzaprine Hcl10116
Pramipexole DihydrochloridePramipexole Di-Hcl10022
ZonisamideZonisamide8914
UbrelvyUbrogepant8519
Divalproex SodiumDivalproex Sodium82suppressed
Ajovy AutoinjectorFremanezumab-Vfrm7911
Tramadol HclTramadol Hcl7726
Citalopram HbrCitalopram Hydrobromide61suppressed
Nortriptyline HclNortriptyline Hcl61suppressed
Fluoxetine HclFluoxetine Hcl57suppressed
Propranolol HclPropranolol Hcl57suppressed
ClonazepamClonazepam5617
Carbamazepine ErCarbamazepine55suppressed
PhenobarbitalPhenobarbital55suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended52suppressed
Quetiapine FumarateQuetiapine Fumarate5213
EntacaponeEntacapone49suppressed
RizatriptanRizatriptan Benzoate45suppressed
Sertraline HclSertraline Hcl4413
PrednisonePrednisone4312
OxcarbazepineOxcarbazepine42suppressed
MethylprednisoloneMethylprednisolone4128
ClopidogrelClopidogrel Bisulfate4011
Kesimpta PenOfatumumab37suppressed
MeloxicamMeloxicam37suppressed
AlprazolamAlprazolam36suppressed
Avonex Pen (4 Pack)Interferon Beta-1a36suppressed
Amitriptyline HclAmitriptyline Hcl35suppressed
ClobazamClobazam35suppressed
GlatopaGlatiramer Acetate30suppressed
Ondansetron OdtOndansetron30suppressed
QuliptaAtogepant30suppressed
LorazepamLorazepam28suppressed
DiazepamDiazepam2523
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine24suppressed
OlanzapineOlanzapine24suppressed
EszopicloneEszopiclone23suppressed
ModafinilModafinil23suppressed
Trazodone HclTrazodone Hcl23suppressed
Butalb-Acetaminoph-Caff-CodeinButalbit/Acetamin/Caff/Codeine22suppressed
Divalproex Sodium ErDivalproex Sodium22suppressed
Glatiramer AcetateGlatiramer Acetate21suppressed
TemazepamTemazepam21suppressed
ZolmitriptanZolmitriptan21suppressed
AmantadineAmantadine Hcl19suppressed
Propranolol Hcl ErPropranolol Hcl19suppressed
Verapamil HclVerapamil Hcl19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
DilantinPhenytoin Sodium Extended18suppressed
Meclizine HclMeclizine Hcl18suppressed
TecfideraDimethyl Fumarate18suppressed
Venlafaxine Hcl ErVenlafaxine Hcl18suppressed
CopaxoneGlatiramer Acetate17suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine17suppressed
Pyridostigmine BromidePyridostigmine Bromide17suppressed
Ajovy SyringeFremanezumab-Vfrm15suppressed
Emgality SyringeGalcanezumab-Gnlm15suppressed
Atorvastatin CalciumAtorvastatin Calcium14suppressed
AustedoDeutetrabenazine14suppressed
Buspirone HclBuspirone Hcl14suppressed
Bupropion HclBupropion Hcl13suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Metoprolol SuccinateMetoprolol Succinate13suppressed
NeuproRotigotine13suppressed
OmeprazoleOmeprazole13suppressed
TeriflunomideTeriflunomide13suppressed
AptiomEslicarbazepine Acetate12suppressed
AzathioprineAzathioprine12suppressed
Imipramine HclImipramine Hcl12suppressed
Tamsulosin HclTamsulosin Hcl12suppressed
Dalfampridine ErDalfampridine11suppressed
Dimethyl FumarateDimethyl Fumarate11suppressed
Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov5011suppressed
Nebivolol HclNebivolol Hcl11suppressed
PhenytoinPhenytoin11suppressed
VumerityDiroximel Fumarate11suppressed

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