Healthcare provider profile · identity verified

Mary Thomason, MD

Internal Medicine · TIGARD, OR · NPI 1427019322

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
Atorvastatin CalciumAtorvastatin Calcium361108
Levothyroxine SodiumLevothyroxine Sodium31078
LisinoprilLisinopril20460
Losartan PotassiumLosartan Potassium16653
OmeprazoleOmeprazole14940
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13617
GabapentinGabapentin13247
Amlodipine BesylateAmlodipine Besylate12537
Duloxetine HclDuloxetine Hcl12526
Rosuvastatin CalciumRosuvastatin Calcium12441
Alendronate SodiumAlendronate Sodium11332
Trazodone HclTrazodone Hcl10929
Metoprolol SuccinateMetoprolol Succinate10828
Buspirone HclBuspirone Hcl8120
SimvastatinSimvastatin8021
Zolpidem TartrateZolpidem Tartrate8013
HydrochlorothiazideHydrochlorothiazide7922
Oxycodone HclOxycodone Hcl7718
Sertraline HclSertraline Hcl7724
Metformin Hcl ErMetformin Hcl7324
Albuterol Sulfate HfaAlbuterol Sulfate7228
EliquisApixaban6416
Tizanidine HclTizanidine Hcl5916
FurosemideFurosemide5818
Potassium ChloridePotassium Chloride5616
Pravastatin SodiumPravastatin Sodium5419
Bupropion XlBupropion Hcl5314
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5216
Citalopram HbrCitalopram Hydrobromide5112
JardianceEmpagliflozin5113
ClonazepamClonazepam47suppressed
Fluticasone PropionateFluticasone Propionate4720
CarvedilolCarvedilol4615
Tramadol HclTramadol Hcl4612
Pantoprazole SodiumPantoprazole Sodium4514
Escitalopram OxalateEscitalopram Oxalate4411
Warfarin SodiumWarfarin Sodium44suppressed
EstradiolEstradiol4316
Metoprolol TartrateMetoprolol Tartrate37suppressed
FamotidineFamotidine3614
Metformin HclMetformin Hcl3512
AtenololAtenolol3412
LovastatinLovastatin34suppressed
Venlafaxine Hcl ErVenlafaxine Hcl34suppressed
AllopurinolAllopurinol33suppressed
MirtazapineMirtazapine33suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen33suppressed
Donepezil HclDonepezil Hcl3111
Morphine Sulfate ErMorphine Sulfate31suppressed
Tamsulosin HclTamsulosin Hcl3111
CelecoxibCelecoxib30suppressed
XareltoRivaroxaban30suppressed
OzempicSemaglutide29suppressed
Montelukast SodiumMontelukast Sodium27suppressed
Clonidine HclClonidine Hcl26suppressed
Fluoxetine HclFluoxetine Hcl23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
SpironolactoneSpironolactone23suppressed
ClopidogrelClopidogrel Bisulfate22suppressed
PrednisonePrednisone22suppressed
Ondansetron OdtOndansetron21suppressed
Bupropion Hcl SrBupropion Hcl20suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl20suppressed
FarxigaDapagliflozin Propanediol19suppressed
Liothyronine SodiumLiothyronine Sodium19suppressed
Pioglitazone HclPioglitazone Hcl19suppressed
Sumatriptan SuccinateSumatriptan Succinate19suppressed
Diclofenac SodiumDiclofenac Sodium18suppressed
Lithium CarbonateLithium Carbonate18suppressed
EzetimibeEzetimibe17suppressed
AlprazolamAlprazolam16suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
Propranolol HclPropranolol Hcl16suppressed
TopiramateTopiramate16suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1611
Azelastine HclAzelastine Hcl15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
Solifenacin SuccinateSolifenacin Succinate15suppressed
ColchicineColchicine14suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
LorazepamLorazepam14suppressed
MounjaroTirzepatide14suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1411
Acetaminophen-CodeineAcetaminophen With Codeine13suppressed
IrbesartanIrbesartan13suppressed
LoperamideLoperamide Hcl13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
PregabalinPregabalin13suppressed
AripiprazoleAripiprazole12suppressed
AzithromycinAzithromycin12suppressed
BumetanideBumetanide12suppressed
Galantamine ErGalantamine Hbr12suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate12suppressed
Memantine Hcl ErMemantine Hcl12suppressed
PrimidonePrimidone12suppressed
CephalexinCephalexin11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
MethocarbamolMethocarbamol11suppressed

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