Healthcare provider profile · identity verified

Brett S Mathers, DO

Internal Medicine · HURON, SD · NPI 1417440785

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
Rosuvastatin CalciumRosuvastatin Calcium277100
Atorvastatin CalciumAtorvastatin Calcium19470
LisinoprilLisinopril19469
Pantoprazole SodiumPantoprazole Sodium18052
Amlodipine BesylateAmlodipine Besylate17459
GabapentinGabapentin16453
Levothyroxine SodiumLevothyroxine Sodium15048
OmeprazoleOmeprazole14755
Metoprolol TartrateMetoprolol Tartrate14636
FurosemideFurosemide13750
Potassium ChloridePotassium Chloride13651
Losartan PotassiumLosartan Potassium12051
Tamsulosin HclTamsulosin Hcl11832
Metformin HclMetformin Hcl10244
EliquisApixaban9421
Metformin Hcl ErMetformin Hcl8328
Trazodone HclTrazodone Hcl6822
SimvastatinSimvastatin6715
CarvedilolCarvedilol6520
Metoprolol SuccinateMetoprolol Succinate6326
FamotidineFamotidine5919
SpironolactoneSpironolactone5917
Duloxetine HclDuloxetine Hcl5818
ClopidogrelClopidogrel Bisulfate5317
Fluticasone PropionateFluticasone Propionate5325
HydrochlorothiazideHydrochlorothiazide5321
Tramadol HclTramadol Hcl5019
Warfarin SodiumWarfarin Sodium4611
AtenololAtenolol4511
Glipizide ErGlipizide4413
Albuterol Sulfate HfaAlbuterol Sulfate4015
Escitalopram OxalateEscitalopram Oxalate3914
AllopurinolAllopurinol3814
Olmesartan MedoxomilOlmesartan Medoxomil3811
JardianceEmpagliflozin3711
Montelukast SodiumMontelukast Sodium3711
Donepezil HclDonepezil Hcl30suppressed
Pravastatin SodiumPravastatin Sodium29suppressed
PrednisonePrednisone2814
Venlafaxine Hcl ErVenlafaxine Hcl28suppressed
Bupropion XlBupropion Hcl2712
DigoxinDigoxin27suppressed
Propranolol HclPropranolol Hcl27suppressed
GemfibrozilGemfibrozil26suppressed
CefdinirCefdinir2525
Amiodarone HclAmiodarone Hcl24suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate24suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
Buspirone HclBuspirone Hcl23suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl23suppressed
EzetimibeEzetimibe23suppressed
MounjaroTirzepatide23suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid2311
MethylprednisoloneMethylprednisolone2220
Ropinirole HclRopinirole Hcl22suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
LevetiracetamLevetiracetam21suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended21suppressed
Breo ElliptaFluticasone/Vilanterol20suppressed
FenofibrateFenofibrate20suppressed
LinzessLinaclotide20suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
Ranolazine ErRanolazine20suppressed
BaclofenBaclofen19suppressed
Oxybutynin Chloride ErOxybutynin Chloride19suppressed
XareltoRivaroxaban19suppressed
Alendronate SodiumAlendronate Sodium18suppressed
TorsemideTorsemide18suppressed
AzithromycinAzithromycin1717
CarbamazepineCarbamazepine17suppressed
GlipizideGlipizide17suppressed
Hydralazine HclHydralazine Hcl17suppressed
JanuviaSitagliptin Phosphate17suppressed
PregabalinPregabalin17suppressed
Sertraline HclSertraline Hcl17suppressed
Doxycycline HyclateDoxycycline Hyclate16suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate16suppressed
MirtazapineMirtazapine16suppressed
SucralfateSucralfate16suppressed
AlprazolamAlprazolam15suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
OzempicSemaglutide15suppressed
SymbicortBudesonide/Formoterol Fumarate15suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
LevofloxacinLevofloxacin1414
NaproxenNaproxen14suppressed
OlanzapineOlanzapine14suppressed
CelecoxibCelecoxib13suppressed
CilostazolCilostazol13suppressed
Clindamycin HclClindamycin Hcl13suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
ScopolamineScopolamine13suppressed
Valproic AcidValproic Acid13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
EntrestoSacubitril/Valsartan12suppressed
FinasterideFinasteride12suppressed
IrbesartanIrbesartan12suppressed
Levalbuterol HclLevalbuterol Hcl12suppressed
TopiramateTopiramate12suppressed
TrulicityDulaglutide12suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1111
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic11suppressed
XifaxanRifaximin11suppressed

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