Healthcare provider profile · identity verified

Benjamin William Simpson, M.D.

Family Practice · LEWISTOWN, MT · NPI 1538502521

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 Calcium12538
Levothyroxine SodiumLevothyroxine Sodium11129
Losartan PotassiumLosartan Potassium7213
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6412
OmeprazoleOmeprazole5219
Albuterol Sulfate HfaAlbuterol Sulfate4813
LisinoprilLisinopril4813
Pantoprazole SodiumPantoprazole Sodium44suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4012
EliquisApixaban39suppressed
HydrochlorothiazideHydrochlorothiazide39suppressed
Trazodone HclTrazodone Hcl3613
Tamsulosin HclTamsulosin Hcl35suppressed
Metformin HclMetformin Hcl34suppressed
SimvastatinSimvastatin34suppressed
Amlodipine BesylateAmlodipine Besylate32suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide30suppressed
Rosuvastatin CalciumRosuvastatin Calcium29suppressed
Donepezil HclDonepezil Hcl24suppressed
Verapamil ErVerapamil Hcl24suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol23suppressed
GabapentinGabapentin21suppressed
Potassium ChloridePotassium Chloride21suppressed
AllopurinolAllopurinol20suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Metoprolol SuccinateMetoprolol Succinate20suppressed
Duloxetine HclDuloxetine Hcl19suppressed
OzempicSemaglutide19suppressed
PrednisonePrednisone1814
ChlorthalidoneChlorthalidone17suppressed
Nifedipine ErNifedipine17suppressed
Sertraline HclSertraline Hcl17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
MeloxicamMeloxicam16suppressed
Metoprolol TartrateMetoprolol Tartrate16suppressed
AlprazolamAlprazolam15suppressed
FurosemideFurosemide15suppressed
Montelukast SodiumMontelukast Sodium15suppressed
PregabalinPregabalin15suppressed
Propranolol HclPropranolol Hcl15suppressed
Tramadol HclTramadol Hcl15suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac1414
CarbamazepineCarbamazepine14suppressed
CelecoxibCelecoxib14suppressed
Escitalopram OxalateEscitalopram Oxalate14suppressed
Warfarin SodiumWarfarin Sodium14suppressed
ClonazepamClonazepam12suppressed
Felodipine ErFelodipine12suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1211
AzithromycinAzithromycin11suppressed
FinasterideFinasteride11suppressed
Metformin Hcl ErMetformin Hcl11suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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