Healthcare provider profile · identity verified

Thomas Kevin Westhusing, D.O.

Family Practice · PASCO, WA · NPI 1164539425

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 Calcium428158
Amlodipine BesylateAmlodipine Besylate291101
Levothyroxine SodiumLevothyroxine Sodium23678
Metformin Hcl ErMetformin Hcl21877
OmeprazoleOmeprazole17360
Tamsulosin HclTamsulosin Hcl16457
Metoprolol SuccinateMetoprolol Succinate16259
LisinoprilLisinopril16165
IrbesartanIrbesartan14953
Rosuvastatin CalciumRosuvastatin Calcium13653
Trazodone HclTrazodone Hcl12254
GabapentinGabapentin10545
Pantoprazole SodiumPantoprazole Sodium10339
JardianceEmpagliflozin10241
HydrochlorothiazideHydrochlorothiazide9437
TorsemideTorsemide9029
OzempicSemaglutide8625
Metformin HclMetformin Hcl8231
Pravastatin SodiumPravastatin Sodium8226
Losartan PotassiumLosartan Potassium8032
SimvastatinSimvastatin7426
Liothyronine SodiumLiothyronine Sodium7020
MounjaroTirzepatide6323
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6027
Fluoxetine HclFluoxetine Hcl5820
Sertraline HclSertraline Hcl5822
Fluticasone PropionateFluticasone Propionate5621
Tramadol HclTramadol Hcl5530
CelecoxibCelecoxib5425
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5320
EzetimibeEzetimibe5222
Zolpidem TartrateZolpidem Tartrate5017
ClopidogrelClopidogrel Bisulfate4716
Albuterol Sulfate HfaAlbuterol Sulfate4624
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide4518
Potassium ChloridePotassium Chloride4521
AlprazolamAlprazolam4315
CarvedilolCarvedilol4313
FinasterideFinasteride4315
AllopurinolAllopurinol3913
TrulicityDulaglutide3911
FamotidineFamotidine3816
Triamcinolone AcetonideTriamcinolone Acetonide3821
PrednisonePrednisone3729
PregabalinPregabalin3711
FenofibrateFenofibrate3614
MeloxicamMeloxicam3513
XareltoRivaroxaban3511
GlimepirideGlimepiride3415
Fluticasone-SalmeterolFluticasone Propion/Salmeterol33suppressed
Montelukast SodiumMontelukast Sodium3213
EliquisApixaban3113
SpironolactoneSpironolactone3112
BaclofenBaclofen2912
Desvenlafaxine Succinate ErDesvenlafaxine Succinate29suppressed
Metoclopramide HclMetoclopramide Hcl29suppressed
SynthroidLevothyroxine Sodium29suppressed
Diclofenac SodiumDiclofenac Sodium2815
LovastatinLovastatin2813
Pioglitazone HclPioglitazone Hcl2811
Pramipexole DihydrochloridePramipexole Di-Hcl28suppressed
Alendronate SodiumAlendronate Sodium2713
Tizanidine HclTizanidine Hcl2712
Buspirone HclBuspirone Hcl26suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2612
Escitalopram OxalateEscitalopram Oxalate2411
FarxigaDapagliflozin Propanediol24suppressed
FurosemideFurosemide2416
Oxycodone HclOxycodone Hcl23suppressed
Doxycycline HyclateDoxycycline Hyclate2217
Duloxetine HclDuloxetine Hcl22suppressed
Bupropion XlBupropion Hcl21suppressed
Metoprolol TartrateMetoprolol Tartrate2111
MirtazapineMirtazapine2111
Citalopram HbrCitalopram Hydrobromide20suppressed
Colestipol HclColestipol Hcl20suppressed
LamotrigineLamotrigine20suppressed
Olmesartan MedoxomilOlmesartan Medoxomil20suppressed
Bupropion Hcl SrBupropion Hcl19suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
Ondansetron OdtOndansetron18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
Nifedipine ErNifedipine16suppressed
TemazepamTemazepam16suppressed
Ventolin HfaAlbuterol Sulfate16suppressed
AnastrozoleAnastrozole15suppressed
AtenololAtenolol15suppressed
Donepezil HclDonepezil Hcl15suppressed
Meclizine HclMeclizine Hcl15suppressed
Ammonium LactateAmmonium Lactate14suppressed
Ipratropium BromideIpratropium Bromide14suppressed
LorazepamLorazepam14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
ColchicineColchicine13suppressed
Nebivolol HclNebivolol Hcl13suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
Paroxetine HclParoxetine 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