Healthcare provider profile · identity verified

Grayson Wells Cobb, MD

Family Practice · MISSOULA, MT · NPI 1952860991

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 Calcium32292
Amlodipine BesylateAmlodipine Besylate23867
Losartan PotassiumLosartan Potassium21261
LisinoprilLisinopril17646
Tamsulosin HclTamsulosin Hcl14939
TelmisartanTelmisartan14445
OmeprazoleOmeprazole14149
SimvastatinSimvastatin14034
Rosuvastatin CalciumRosuvastatin Calcium12835
Levothyroxine SodiumLevothyroxine Sodium11731
Metformin Hcl ErMetformin Hcl10228
Escitalopram OxalateEscitalopram Oxalate9420
Metoprolol SuccinateMetoprolol Succinate9222
GabapentinGabapentin6923
TrulicityDulaglutide64suppressed
Trazodone HclTrazodone Hcl6115
EliquisApixaban5814
Albuterol Sulfate HfaAlbuterol Sulfate5621
Pravastatin SodiumPravastatin Sodium5616
HydrochlorothiazideHydrochlorothiazide5319
JardianceEmpagliflozin52suppressed
ChlorthalidoneChlorthalidone5016
Warfarin SodiumWarfarin Sodium5013
IndapamideIndapamide4916
MeloxicamMeloxicam4913
MounjaroTirzepatide4711
AllopurinolAllopurinol4611
Fluticasone PropionateFluticasone Propionate4518
Sertraline HclSertraline Hcl45suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4313
Potassium ChloridePotassium Chloride4020
SpironolactoneSpironolactone3611
Donepezil HclDonepezil Hcl34suppressed
Pantoprazole SodiumPantoprazole Sodium34suppressed
Citalopram HbrCitalopram Hydrobromide33suppressed
Duloxetine HclDuloxetine Hcl30suppressed
LoperamideLoperamide Hcl30suppressed
XareltoRivaroxaban30suppressed
CarvedilolCarvedilol29suppressed
ValsartanValsartan29suppressed
OzempicSemaglutide26suppressed
Bupropion XlBupropion Hcl2511
Fluoxetine HclFluoxetine Hcl25suppressed
TopiramateTopiramate25suppressed
Memantine HclMemantine Hcl24suppressed
Diclofenac SodiumDiclofenac Sodium23suppressed
FarxigaDapagliflozin Propanediol23suppressed
Paroxetine HclParoxetine Hcl23suppressed
FinasterideFinasteride22suppressed
Metformin HclMetformin Hcl21suppressed
Zolpidem TartrateZolpidem Tartrate21suppressed
KetoconazoleKetoconazole20suppressed
MirtazapineMirtazapine20suppressed
Ondansetron OdtOndansetron2014
FurosemideFurosemide19suppressed
Oxycodone HclOxycodone Hcl1912
OxycontinOxycodone Hcl19suppressed
TorsemideTorsemide19suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter19suppressed
AtenololAtenolol17suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
EstradiolEstradiol16suppressed
PrednisonePrednisone1613
Ventolin HfaAlbuterol Sulfate16suppressed
GlimepirideGlimepiride15suppressed
MethocarbamolMethocarbamol15suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl15suppressed
Testosterone CypionateTestosterone Cypionate15suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Olmesartan MedoxomilOlmesartan Medoxomil14suppressed
Terbinafine HclTerbinafine Hcl14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1412
AcyclovirAcyclovir13suppressed
Alendronate SodiumAlendronate Sodium13suppressed
FamotidineFamotidine13suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1313
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
Bupropion Hcl SrBupropion Hcl12suppressed
Fosinopril SodiumFosinopril Sodium12suppressed
PregabalinPregabalin12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Tizanidine HclTizanidine Hcl12suppressed
Candesartan CilexetilCandesartan Cilexetil11suppressed
ValacyclovirValacyclovir 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