Healthcare provider profile · identity verified

John C Elser, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · EVERGREEN PARK, IL · NPI 1154366839

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 C Elser, M.D. received $14.02 in general payments during 2025 across 1 reported records.

Amgen 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

$14.02

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
Amgen Inc. Unresolved — no canonical attribution shown $14.02100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$14.021

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
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $14.02 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
Atorvastatin CalciumAtorvastatin Calcium556164
Amlodipine BesylateAmlodipine Besylate374115
Levothyroxine SodiumLevothyroxine Sodium25478
Metoprolol SuccinateMetoprolol Succinate23172
Pantoprazole SodiumPantoprazole Sodium20069
SimvastatinSimvastatin19357
LisinoprilLisinopril17952
Metformin HclMetformin Hcl16149
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15242
Metoprolol TartrateMetoprolol Tartrate15142
OmeprazoleOmeprazole14136
Rosuvastatin CalciumRosuvastatin Calcium13546
FurosemideFurosemide12845
HydrochlorothiazideHydrochlorothiazide11533
EliquisApixaban11422
Losartan PotassiumLosartan Potassium10234
Potassium ChloridePotassium Chloride10039
OzempicSemaglutide9522
AllopurinolAllopurinol8831
Tramadol HclTramadol Hcl8334
Albuterol Sulfate HfaAlbuterol Sulfate7927
CelecoxibCelecoxib7725
Escitalopram OxalateEscitalopram Oxalate7424
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide7221
Tamsulosin HclTamsulosin Hcl6926
AtenololAtenolol6718
GabapentinGabapentin6725
FinasterideFinasteride5818
Fluticasone PropionateFluticasone Propionate5620
JardianceEmpagliflozin5612
AlprazolamAlprazolam5420
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5416
Pioglitazone HclPioglitazone Hcl5316
PrednisonePrednisone5232
XareltoRivaroxaban4912
SpironolactoneSpironolactone4814
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4712
Metformin Hcl ErMetformin Hcl4716
FamotidineFamotidine4513
GlimepirideGlimepiride4516
IbuprofenIbuprofen4518
Hydralazine HclHydralazine Hcl4416
ClopidogrelClopidogrel Bisulfate4213
Pravastatin SodiumPravastatin Sodium4214
CarvedilolCarvedilol4115
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide39suppressed
TrulicityDulaglutide36suppressed
Montelukast SodiumMontelukast Sodium32suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3114
Nifedipine ErNifedipine31suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter31suppressed
Janumet XrSitagliptin Phos/Metformin Hcl30suppressed
Zolpidem TartrateZolpidem Tartrate2911
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen2722
Triamcinolone AcetonideTriamcinolone Acetonide26suppressed
Sertraline HclSertraline Hcl25suppressed
Diclofenac SodiumDiclofenac Sodium2412
Klor-Con M20Potassium Chloride24suppressed
Breo ElliptaFluticasone/Vilanterol23suppressed
FarxigaDapagliflozin Propanediol23suppressed
Ropinirole HclRopinirole Hcl23suppressed
MirtazapineMirtazapine22suppressed
SynthroidLevothyroxine Sodium22suppressed
Glipizide ErGlipizide20suppressed
JanuviaSitagliptin Phosphate20suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium19suppressed
KetoconazoleKetoconazole19suppressed
Olmesartan MedoxomilOlmesartan Medoxomil19suppressed
Arnuity ElliptaFluticasone Furoate18suppressed
Meclizine HclMeclizine Hcl18suppressed
Memantine HclMemantine Hcl18suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters18suppressed
SymbicortBudesonide/Formoterol Fumarate18suppressed
Alendronate SodiumAlendronate Sodium17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
GlipizideGlipizide17suppressed
IrbesartanIrbesartan17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Novolin 70-30 FlexpenInsulin Nph Hum/Reg Insulin Hm17suppressed
Benazepril HclBenazepril Hcl16suppressed
Donepezil HclDonepezil Hcl16suppressed
Repatha SureclickEvolocumab16suppressed
Verapamil SrVerapamil Hcl16suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
LansoprazoleLansoprazole15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
LovastatinLovastatin15suppressed
PregabalinPregabalin15suppressed
Duloxetine HclDuloxetine Hcl14suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride14suppressed
MeloxicamMeloxicam14suppressed
TorsemideTorsemide14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
BrilintaTicagrelor13suppressed
ColchicineColchicine13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
Trazodone HclTrazodone Hcl13suppressed
IndapamideIndapamide12suppressed
NystatinNystatin12suppressed
RamiprilRamipril12suppressed
Synjardy XrEmpagliflozin/Metformin Hcl12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1111
ChlorthalidoneChlorthalidone11suppressed
Combivent RespimatIpratropium/Albuterol Sulfate11suppressed
FluocinonideFluocinonide11suppressed
NaproxenNaproxen11suppressed
SilodosinSilodosin11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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 $14.02 · 1 records Amgen Inc. KRYSTEXXA
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