Healthcare provider profile · identity verified

Kenneth Wayne Kooser, M.D.

Family Practice · LACEY, WA · NPI 1306920772

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 Calcium30899
LisinoprilLisinopril23977
Levothyroxine SodiumLevothyroxine Sodium19756
Amlodipine BesylateAmlodipine Besylate18360
Losartan PotassiumLosartan Potassium17058
Metoprolol SuccinateMetoprolol Succinate12139
OmeprazoleOmeprazole12043
Tamsulosin HclTamsulosin Hcl11734
GabapentinGabapentin11342
OzempicSemaglutide11217
HydrochlorothiazideHydrochlorothiazide9135
SimvastatinSimvastatin8830
Rosuvastatin CalciumRosuvastatin Calcium8230
Trazodone HclTrazodone Hcl7725
Metformin HclMetformin Hcl7223
EliquisApixaban6818
Pantoprazole SodiumPantoprazole Sodium6722
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6014
Tramadol HclTramadol Hcl6012
CarvedilolCarvedilol5818
Metoprolol TartrateMetoprolol Tartrate5715
Metformin Hcl ErMetformin Hcl5624
Duloxetine HclDuloxetine Hcl5420
Cyclobenzaprine HclCyclobenzaprine Hcl5216
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen52suppressed
Fluticasone PropionateFluticasone Propionate4717
AllopurinolAllopurinol4513
Sertraline HclSertraline Hcl4211
TrulicityDulaglutide41suppressed
ChlorthalidoneChlorthalidone4014
MirtazapineMirtazapine40suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3718
Citalopram HbrCitalopram Hydrobromide3611
AtenololAtenolol34suppressed
ClopidogrelClopidogrel Bisulfate3312
Fluoxetine HclFluoxetine Hcl3312
Montelukast SodiumMontelukast Sodium3214
Pravastatin SodiumPravastatin Sodium3212
Bupropion Hcl SrBupropion Hcl31suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol31suppressed
Combivent RespimatIpratropium/Albuterol Sulfate30suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide30suppressed
LovastatinLovastatin30suppressed
Potassium ChloridePotassium Chloride3012
FinasterideFinasteride2911
FurosemideFurosemide2818
JardianceEmpagliflozin26suppressed
Tizanidine HclTizanidine Hcl25suppressed
SpironolactoneSpironolactone2412
Zolpidem TartrateZolpidem Tartrate24suppressed
BaclofenBaclofen23suppressed
Hydralazine HclHydralazine Hcl23suppressed
LorazepamLorazepam23suppressed
Oxybutynin Chloride ErOxybutynin Chloride23suppressed
Donepezil HclDonepezil Hcl22suppressed
GlipizideGlipizide22suppressed
IrbesartanIrbesartan22suppressed
Quetiapine FumarateQuetiapine Fumarate22suppressed
Bupropion XlBupropion Hcl21suppressed
Buspirone HclBuspirone Hcl21suppressed
CephalexinCephalexin21suppressed
Terazosin HclTerazosin Hcl21suppressed
Venlafaxine Hcl ErVenlafaxine Hcl21suppressed
PregabalinPregabalin19suppressed
SynthroidLevothyroxine Sodium19suppressed
Escitalopram OxalateEscitalopram Oxalate18suppressed
Humalog Kwikpen U-100Insulin Lispro18suppressed
KetoconazoleKetoconazole18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1813
Benazepril HclBenazepril Hcl17suppressed
CelecoxibCelecoxib17suppressed
FamotidineFamotidine17suppressed
EzetimibeEzetimibe16suppressed
Ipratropium BromideIpratropium Bromide16suppressed
BelsomraSuvorexant15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
TelmisartanTelmisartan15suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15suppressed
Azelastine HclAzelastine Hcl14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
Ondansetron OdtOndansetron13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
TopiramateTopiramate13suppressed
Trospium ChlorideTrospium Chloride13suppressed
Alfuzosin Hcl ErAlfuzosin Hcl12suppressed
AmantadineAmantadine Hcl12suppressed
Droplet Pen NeedlePen Needle, Diabetic12suppressed
Paroxetine HclParoxetine Hcl12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1111
GlimepirideGlimepiride11suppressed
LamotrigineLamotrigine11suppressed
LevetiracetamLevetiracetam11suppressed
MethocarbamolMethocarbamol11suppressed
Ropinirole HclRopinirole 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