Healthcare provider profile · identity verified

Douglas Spence Kasteler, MD

Allopathic & Osteopathic Physicians|Family Medicine · BOUNTIFUL, UT · NPI 1659313583

Profile state: payments and partd 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

CMS Open Payments records show Douglas Spence Kasteler, MD received $40.94 in general payments during 2025 across 2 reported records.

Inspire Medical Systems, Inc. accounted for 52.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$40.94

2 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $21.4652.4%12025
Abbott Laboratories Unresolved — no canonical attribution shown $19.4847.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$40.942

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $21.46 1 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $19.48 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Zolpidem TartrateZolpidem Tartrate22834
Losartan PotassiumLosartan Potassium20157
Levothyroxine SodiumLevothyroxine Sodium19350
AlprazolamAlprazolam17527
Atorvastatin CalciumAtorvastatin Calcium11734
OmeprazoleOmeprazole11743
GabapentinGabapentin11632
Pravastatin SodiumPravastatin Sodium10828
Amlodipine BesylateAmlodipine Besylate10331
Metformin Hcl ErMetformin Hcl9824
Metformin HclMetformin Hcl8626
Fluoxetine HclFluoxetine Hcl8225
Rosuvastatin CalciumRosuvastatin Calcium7219
LisinoprilLisinopril7121
Tamsulosin HclTamsulosin Hcl7121
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6912
EstradiolEstradiol6721
GlimepirideGlimepiride6720
SimvastatinSimvastatin6317
TemazepamTemazepam62suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid6224
LorazepamLorazepam61suppressed
ClonazepamClonazepam60suppressed
Pantoprazole SodiumPantoprazole Sodium5914
CelecoxibCelecoxib5816
HydrochlorothiazideHydrochlorothiazide5816
Alendronate SodiumAlendronate Sodium5614
Pioglitazone HclPioglitazone Hcl5214
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine5111
Doxazosin MesylateDoxazosin Mesylate5013
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5013
Tramadol HclTramadol Hcl5016
AzithromycinAzithromycin4839
Potassium ChloridePotassium Chloride4714
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4316
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen43suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4328
MeloxicamMeloxicam4116
PrednisonePrednisone3915
Warfarin SodiumWarfarin Sodium39suppressed
FenofibrateFenofibrate37suppressed
Verapamil ErVerapamil Hcl37suppressed
Trazodone HclTrazodone Hcl3612
Doxycycline MonohydrateDoxycycline Monohydrate3532
Clonidine HclClonidine Hcl3412
Citalopram HbrCitalopram Hydrobromide33suppressed
FinasterideFinasteride3311
Fluticasone PropionateFluticasone Propionate33suppressed
IbuprofenIbuprofen3312
Pramipexole DihydrochloridePramipexole Di-Hcl33suppressed
AllopurinolAllopurinol32suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine30suppressed
DiazepamDiazepam30suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2912
MounjaroTirzepatide29suppressed
Ciprofloxacin HclCiprofloxacin Hcl2726
EliquisApixaban26suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
ValacyclovirValacyclovir Hcl26suppressed
PregabalinPregabalin25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2212
Bupropion XlBupropion Hcl22suppressed
FluconazoleFluconazole2212
FurosemideFurosemide22suppressed
Propranolol Hcl ErPropranolol Hcl22suppressed
CarvedilolCarvedilol21suppressed
Escitalopram OxalateEscitalopram Oxalate21suppressed
Sertraline HclSertraline Hcl21suppressed
Sumatriptan SuccinateSumatriptan Succinate21suppressed
CephalexinCephalexin2018
Oxycodone HclOxycodone Hcl20suppressed
CarisoprodolCarisoprodol19suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1914
Oxybutynin Chloride ErOxybutynin Chloride19suppressed
AmoxicillinAmoxicillin1815
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide18suppressed
Metoprolol SuccinateMetoprolol Succinate17suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
Montelukast SodiumMontelukast Sodium16suppressed
ClopidogrelClopidogrel Bisulfate15suppressed
BaclofenBaclofen14suppressed
Donepezil HclDonepezil Hcl14suppressed
MetronidazoleMetronidazole14suppressed
TrulicityDulaglutide14suppressed
LevofloxacinLevofloxacin13suppressed
Oxybutynin ChlorideOxybutynin Chloride13suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Ondansetron OdtOndansetron12suppressed
SpironolactoneSpironolactone12suppressed
Zolpidem Tartrate ErZolpidem Tartrate12suppressed
Duloxetine HclDuloxetine Hcl11suppressed
LamotrigineLamotrigine11suppressed
Verapamil SrVerapamil 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 $40.94 · 2 records Inspire Medical Systems, Inc. FREESTYLE LIBRE 3, INSPIRE
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