Healthcare provider profile · identity verified

Michael Thomas Cook, MD

Family Practice · CHEHALIS, WA · NPI 1295397933

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
Losartan PotassiumLosartan Potassium14155
Atorvastatin CalciumAtorvastatin Calcium12556
Amlodipine BesylateAmlodipine Besylate9144
GabapentinGabapentin9135
Levothyroxine SodiumLevothyroxine Sodium9133
LisinoprilLisinopril9035
Albuterol Sulfate HfaAlbuterol Sulfate5925
OmeprazoleOmeprazole5825
Tamsulosin HclTamsulosin Hcl5322
Metoprolol SuccinateMetoprolol Succinate5020
Tizanidine HclTizanidine Hcl4623
JardianceEmpagliflozin4417
Metformin Hcl ErMetformin Hcl4421
Trazodone HclTrazodone Hcl4413
Metformin HclMetformin Hcl3517
Fluoxetine HclFluoxetine Hcl2812
HydrochlorothiazideHydrochlorothiazide2815
Fluticasone PropionateFluticasone Propionate2715
PrednisonePrednisone2620
Rosuvastatin CalciumRosuvastatin Calcium2514
SimvastatinSimvastatin25suppressed
FurosemideFurosemide2414
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2418
EliquisApixaban2211
Diclofenac SodiumDiclofenac Sodium2013
FamotidineFamotidine20suppressed
Pantoprazole SodiumPantoprazole Sodium20suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
Potassium ChloridePotassium Chloride19suppressed
CarvedilolCarvedilol18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1715
Duloxetine HclDuloxetine Hcl17suppressed
Paroxetine HclParoxetine Hcl17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
Oxycodone HclOxycodone Hcl1511
XareltoRivaroxaban15suppressed
Doxycycline HyclateDoxycycline Hyclate1411
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst14suppressed
Serevent DiskusSalmeterol Xinafoate14suppressed
Tramadol HclTramadol Hcl14suppressed
Alendronate SodiumAlendronate Sodium13suppressed
AzithromycinAzithromycin1312
Dicyclomine HclDicyclomine Hcl13suppressed
AllopurinolAllopurinol12suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
Betamethasone DipropionateBetamethasone Dipropionate12suppressed
GlipizideGlipizide12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
FarxigaDapagliflozin Propanediol11suppressed
FluconazoleFluconazole11suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
PregabalinPregabalin11suppressed
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