Healthcare provider profile · identity verified

Matthew T Stevenson, MD

Neuropsychiatry · TACOMA, WA · NPI 1699975649

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
LevetiracetamLevetiracetam666140
LacosamideLacosamide37459
LamotrigineLamotrigine23440
PregabalinPregabalin20636
ClobazamClobazam18524
ZonisamideZonisamide14631
GabapentinGabapentin12937
Memantine HclMemantine Hcl12926
Donepezil HclDonepezil Hcl12838
Carbidopa-LevodopaCarbidopa/Levodopa12534
TopiramateTopiramate12021
ClonazepamClonazepam11324
Carbidopa-Levodopa ErCarbidopa/Levodopa8923
Phenytoin Sodium ExtendedPhenytoin Sodium Extended8517
Carbamazepine ErCarbamazepine7312
Levetiracetam ErLevetiracetam7314
BaclofenBaclofen6912
PhenobarbitalPhenobarbital57suppressed
Aimovig AutoinjectorErenumab-Aooe56suppressed
Divalproex Sodium ErDivalproex Sodium5613
Divalproex SodiumDivalproex Sodium55suppressed
XcopriCenobamate53suppressed
OxcarbazepineOxcarbazepine46suppressed
Naratriptan HclNaratriptan Hcl43suppressed
Valproic AcidValproic Acid (As Sodium Salt)40suppressed
LorazepamLorazepam36suppressed
RivastigmineRivastigmine Tartrate36suppressed
Venlafaxine Hcl ErVenlafaxine Hcl36suppressed
Propranolol HclPropranolol Hcl28suppressed
Propranolol Hcl ErPropranolol Hcl28suppressed
Ajovy AutoinjectorFremanezumab-Vfrm26suppressed
Nurtec OdtRimegepant Sulfate26suppressed
Ropinirole HclRopinirole Hcl26suppressed
PhenytoinPhenytoin22suppressed
PrimidonePrimidone22suppressed
AripiprazoleAripiprazole20suppressed
EthosuximideEthosuximide20suppressed
RizatriptanRizatriptan Benzoate20suppressed
Sertraline HclSertraline Hcl20suppressed
UbrelvyUbrogepant20suppressed
AmantadineAmantadine Hcl19suppressed
DiazepamDiazepam19suppressed
Donepezil Hcl OdtDonepezil Hcl17suppressed
Quetiapine FumarateQuetiapine Fumarate17suppressed
Sumatriptan SuccinateSumatriptan Succinate17suppressed
AptiomEslicarbazepine Acetate16suppressed
IndomethacinIndomethacin16suppressed
QuliptaAtogepant16suppressed
Escitalopram OxalateEscitalopram Oxalate14suppressed
Trazodone HclTrazodone Hcl14suppressed
CopaxoneGlatiramer Acetate13suppressed
Fluoxetine HclFluoxetine Hcl13suppressed
Lamotrigine OdtLamotrigine13suppressed
PhenytekPhenytoin Sodium Extended13suppressed
RufinamideRufinamide13suppressed
Tegretol XrCarbamazepine13suppressed
Verapamil HclVerapamil Hcl13suppressed
Emgality SyringeGalcanezumab-Gnlm12suppressed
MirtazapineMirtazapine12suppressed
CarbamazepineCarbamazepine11suppressed
Emgality PenGalcanezumab-Gnlm11suppressed

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