Healthcare provider profile · identity verified

Karl L Oberer, DO

Allopathic & Osteopathic Physicians|Family Medicine · SANDUSKY, OH · NPI 1295728509

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 Karl L Oberer, DO received $22.30 in general payments during 2025 across 1 reported records.

Inspire Medical Systems, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$22.30

1 reported records · 1 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 $22.30100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$22.301

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. $22.30 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
Atorvastatin CalciumAtorvastatin Calcium47599
LisinoprilLisinopril34673
OmeprazoleOmeprazole28768
Metformin HclMetformin Hcl27456
Levothyroxine SodiumLevothyroxine Sodium25849
HydrochlorothiazideHydrochlorothiazide22854
Amlodipine BesylateAmlodipine Besylate21447
Losartan PotassiumLosartan Potassium20040
Citalopram HbrCitalopram Hydrobromide18939
Potassium ChloridePotassium Chloride18033
LovastatinLovastatin16543
GabapentinGabapentin15629
FurosemideFurosemide15132
Tamsulosin HclTamsulosin Hcl14422
Sertraline HclSertraline Hcl14217
Pantoprazole SodiumPantoprazole Sodium12726
Metoprolol TartrateMetoprolol Tartrate12622
Metoprolol SuccinateMetoprolol Succinate12330
ClopidogrelClopidogrel Bisulfate11621
SimvastatinSimvastatin10722
Montelukast SodiumMontelukast Sodium9321
LevetiracetamLevetiracetam88suppressed
SpironolactoneSpironolactone8617
Buspirone HclBuspirone Hcl8520
AllopurinolAllopurinol8219
MeloxicamMeloxicam8126
Donepezil HclDonepezil Hcl7813
BaclofenBaclofen77suppressed
CarvedilolCarvedilol7413
FamotidineFamotidine7315
Diclofenac SodiumDiclofenac Sodium6915
Tramadol HclTramadol Hcl6913
Duloxetine HclDuloxetine Hcl68suppressed
PrednisonePrednisone6731
Alendronate SodiumAlendronate Sodium6312
Albuterol Sulfate HfaAlbuterol Sulfate5722
Pravastatin SodiumPravastatin Sodium5711
Oxycodone HclOxycodone Hcl56suppressed
EliquisApixaban55suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim5121
FinasterideFinasteride50suppressed
RisperidoneRisperidone5012
MirtazapineMirtazapine49suppressed
Escitalopram OxalateEscitalopram Oxalate48suppressed
FarxigaDapagliflozin Propanediol48suppressed
Pioglitazone HclPioglitazone Hcl4813
EzetimibeEzetimibe4512
Hydralazine HclHydralazine Hcl45suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4412
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog40suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide40suppressed
Paroxetine HclParoxetine Hcl40suppressed
Memantine HclMemantine Hcl38suppressed
Quetiapine FumarateQuetiapine Fumarate37suppressed
Trazodone HclTrazodone Hcl37suppressed
Glipizide ErGlipizide35suppressed
AzithromycinAzithromycin3428
CephalexinCephalexin3413
Ropinirole HclRopinirole Hcl34suppressed
JanuviaSitagliptin Phosphate33suppressed
Hydroxyzine HclHydroxyzine Hcl32suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate32suppressed
Doxazosin MesylateDoxazosin Mesylate31suppressed
IbuprofenIbuprofen3111
Hydroxychloroquine SulfateHydroxychloroquine Sulfate30suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol29suppressed
AtenololAtenolol28suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid28suppressed
ValsartanValsartan28suppressed
Verapamil ErVerapamil Hcl27suppressed
AmoxicillinAmoxicillin2618
Diltiazem HclDiltiazem Hcl26suppressed
LatanoprostLatanoprost26suppressed
SynthroidLevothyroxine Sodium26suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
Theophylline ErTheophylline Anhydrous25suppressed
Albuterol SulfateAlbuterol Sulfate2414
Esomeprazole MagnesiumEsomeprazole Magnesium24suppressed
Divalproex SodiumDivalproex Sodium23suppressed
Humalog Kwikpen U-100Insulin Lispro23suppressed
Carbidopa-LevodopaCarbidopa/Levodopa22suppressed
PrimidonePrimidone22suppressed
ProcritEpoetin Alfa22suppressed
CefdinirCefdinir2114
Testosterone CypionateTestosterone Cypionate21suppressed
Fluticasone PropionateFluticasone Propionate20suppressed
Klor-Con M20Potassium Chloride20suppressed
Memantine Hcl ErMemantine Hcl20suppressed
OxcarbazepineOxcarbazepine20suppressed
CiclopiroxCiclopirox Olamine19suppressed
JardianceEmpagliflozin19suppressed
GlimepirideGlimepiride18suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst18suppressed
PregabalinPregabalin18suppressed
Rosuvastatin CalciumRosuvastatin Calcium18suppressed
TradjentaLinagliptin18suppressed
CalcitriolCalcitriol17suppressed
LevofloxacinLevofloxacin1713
LorazepamLorazepam17suppressed
Oxybutynin Chloride ErOxybutynin Chloride17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16suppressed
MethylprednisoloneMethylprednisolone1614
Ondansetron HclOndansetron Hcl16suppressed
Tresiba Flextouch U-100Insulin Degludec16suppressed
Brimonidine TartrateBrimonidine Tartrate15suppressed
Bupropion XlBupropion Hcl15suppressed
Ciprofloxacin HclCiprofloxacin Hcl1512
EntrestoSacubitril/Valsartan15suppressed
HydrocortisoneHydrocortisone15suppressed
SucralfateSucralfate15suppressed
TrulicityDulaglutide15suppressed
Acetaminophen-CodeineAcetaminophen With Codeine14suppressed
Amiodarone HclAmiodarone Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav14suppressed
ColchicineColchicine14suppressed
Kapspargo SprinkleMetoprolol Succinate14suppressed
Labetalol HclLabetalol Hcl14suppressed
MethotrexateMethotrexate Sodium14suppressed
NuedextaDextromethorphan Hbr/Quinidine14suppressed
XareltoRivaroxaban14suppressed
Benazepril HclBenazepril Hcl13suppressed
Doxycycline HyclateDoxycycline Hyclate1311
FenofibrateFenofibrate13suppressed
Insulin Aspart FlexpenInsulin Aspart13suppressed
Lagevrio (Eua)Molnupiravir1313
Zolpidem TartrateZolpidem Tartrate13suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Fluphenazine DecanoateFluphenazine Decanoate12suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate12suppressed
LacosamideLacosamide12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
Leucovorin CalciumLeucovorin Calcium12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
Nifedipine ErNifedipine12suppressed
OxaprozinOxaprozin12suppressed
RivastigmineRivastigmine Tartrate12suppressed
TadalafilTadalafil12suppressed
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen12suppressed
CelecoxibCelecoxib11suppressed
Doxepin HclDoxepin Hcl11suppressed
Enoxaparin SodiumEnoxaparin Sodium11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Metformin Hcl ErMetformin 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 $22.30 · 1 records Inspire Medical Systems, Inc. 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