Healthcare provider profile · identity verified

John D Kornmayer, DO

Allopathic & Osteopathic Physicians|Family Medicine · COLUMBUS, NC · NPI 1992878227

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 John D Kornmayer, DO received $168.97 in general payments during 2025 across 2 reported records.

Amgen Inc. accounted for 100.0% 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

$168.97

2 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
Amgen Inc. Unresolved — no canonical attribution shown $168.97100.0%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$168.972

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
EVENITY
Normalized: evenity
Biological Amgen Inc. $168.97 2 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $18.97 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
Levothyroxine SodiumLevothyroxine Sodium25852
Amlodipine BesylateAmlodipine Besylate19146
Rosuvastatin CalciumRosuvastatin Calcium18751
Atorvastatin CalciumAtorvastatin Calcium16340
OmeprazoleOmeprazole15439
Losartan PotassiumLosartan Potassium11826
Pantoprazole SodiumPantoprazole Sodium11724
LisinoprilLisinopril11530
Citalopram HbrCitalopram Hydrobromide10916
AlprazolamAlprazolam10818
CarvedilolCarvedilol10621
Duloxetine HclDuloxetine Hcl10418
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl102suppressed
CelecoxibCelecoxib9822
PrednisonePrednisone9468
MirtazapineMirtazapine8816
HydrochlorothiazideHydrochlorothiazide8722
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8614
FamotidineFamotidine8425
Pioglitazone HclPioglitazone Hcl7918
Tamsulosin HclTamsulosin Hcl7918
EliquisApixaban7712
GabapentinGabapentin7720
AzithromycinAzithromycin7660
Fluticasone PropionateFluticasone Propionate7016
MethocarbamolMethocarbamol6916
Metoprolol SuccinateMetoprolol Succinate6515
Cyclobenzaprine HclCyclobenzaprine Hcl6411
OzempicSemaglutide6411
Diclofenac SodiumDiclofenac Sodium6320
DiazepamDiazepam62suppressed
Potassium ChloridePotassium Chloride6120
Sertraline HclSertraline Hcl6114
Albuterol Sulfate HfaAlbuterol Sulfate5815
Montelukast SodiumMontelukast Sodium5814
AllopurinolAllopurinol5511
FurosemideFurosemide5422
Metformin HclMetformin Hcl49suppressed
Trazodone HclTrazodone Hcl4911
Tramadol Hcl ErTramadol Hcl48suppressed
ValsartanValsartan48suppressed
MethylprednisoloneMethylprednisolone4734
Tramadol HclTramadol Hcl46suppressed
MyrbetriqMirabegron45suppressed
CephalexinCephalexin4438
MeloxicamMeloxicam44suppressed
Oxycodone HclOxycodone Hcl43suppressed
LactuloseLactulose41suppressed
XareltoRivaroxaban41suppressed
SimvastatinSimvastatin40suppressed
Metformin Hcl ErMetformin Hcl3911
Metoprolol TartrateMetoprolol Tartrate37suppressed
JardianceEmpagliflozin35suppressed
PregabalinPregabalin35suppressed
Buspirone HclBuspirone Hcl34suppressed
Paroxetine HclParoxetine Hcl32suppressed
Hydroxyzine HclHydroxyzine Hcl31suppressed
Nebivolol HclNebivolol Hcl31suppressed
Memantine HclMemantine Hcl30suppressed
Donepezil HclDonepezil Hcl29suppressed
Meclizine HclMeclizine Hcl29suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen29suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl29suppressed
LorazepamLorazepam28suppressed
Ondansetron OdtOndansetron2815
Dexlansoprazole DrDexlansoprazole27suppressed
Escitalopram OxalateEscitalopram Oxalate27suppressed
Olmesartan MedoxomilOlmesartan Medoxomil27suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2621
Morphine Sulfate ErMorphine Sulfate25suppressed
Amitriptyline HclAmitriptyline Hcl24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
FarxigaDapagliflozin Propanediol23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2218
Solifenacin SuccinateSolifenacin Succinate22suppressed
Benazepril HclBenazepril Hcl21suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide21suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2119
AtenololAtenolol20suppressed
Carbidopa-LevodopaCarbidopa/Levodopa20suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
Doxepin HclDoxepin Hcl20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium20suppressed
SymbicortBudesonide/Formoterol Fumarate19suppressed
Tizanidine HclTizanidine Hcl19suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter19suppressed
AmoxicillinAmoxicillin1816
ChlorthalidoneChlorthalidone18suppressed
FluconazoleFluconazole1816
Fluoxetine HclFluoxetine Hcl18suppressed
EstradiolEstradiol17suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide16suppressed
SpironolactoneSpironolactone16suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa15suppressed
CefdinirCefdinir1513
Phenytoin Sodium ExtendedPhenytoin Sodium Extended15suppressed
TelmisartanTelmisartan15suppressed
EdarbyclorAzilsartan Med/Chlorthalidone14suppressed
ColchicineColchicine13suppressed
GlipizideGlipizide13suppressed
Memantine Hcl ErMemantine Hcl13suppressed
MethimazoleMethimazole13suppressed
RisperidoneRisperidone13suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl13suppressed
SynthroidLevothyroxine Sodium13suppressed
TestosteroneTestosterone13suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid13suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide13suppressed
CarbamazepineCarbamazepine12suppressed
Dilt-XrDiltiazem Hcl12suppressed
FentanylFentanyl12suppressed
TopiramateTopiramate12suppressed
Toprol XlMetoprolol Succinate12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
ZocorSimvastatin12suppressed
Clindamycin HclClindamycin Hcl11suppressed
Diclofenac PotassiumDiclofenac Potassium11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
Doxycycline MonohydrateDoxycycline Monohydrate11suppressed
FamciclovirFamciclovir11suppressed
IrbesartanIrbesartan11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
KetoconazoleKetoconazole11suppressed
Lurasidone HclLurasidone Hcl11suppressed
NamzaricMemantine Hcl/Donepezil Hcl11suppressed
RybelsusSemaglutide11suppressed
SucralfateSucralfate11suppressed
Verapamil ErVerapamil Hcl11suppressed
VyvanseLisdexamfetamine Dimesylate11suppressed

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 $168.97 · 2 records Amgen Inc. EVENITY, PROLIA
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