Healthcare provider profile · identity verified

Guy R Abderholden, MD

Allopathic & Osteopathic Physicians|Family Medicine · ANTIOCH, IL · NPI 1902899792

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 Guy R Abderholden, MD received $16.30 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 2 associated products.

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

Payment overview · 2025

General Payments

$16.30

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
Amgen Inc. Unresolved — no canonical attribution shown $16.30100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$16.301

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
EVENITY
Normalized: evenity
Biological Amgen Inc. $16.30 1 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $16.30 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.

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 Calcium767224
Amlodipine BesylateAmlodipine Besylate518152
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen388106
Levothyroxine SodiumLevothyroxine Sodium35896
Pantoprazole SodiumPantoprazole Sodium341103
LisinoprilLisinopril30098
IrbesartanIrbesartan28193
OmeprazoleOmeprazole26671
Trazodone HclTrazodone Hcl22374
Tamsulosin HclTamsulosin Hcl21867
HydrochlorothiazideHydrochlorothiazide21465
Losartan PotassiumLosartan Potassium20362
Metoprolol SuccinateMetoprolol Succinate20366
Metformin HclMetformin Hcl20164
Rosuvastatin CalciumRosuvastatin Calcium18863
GabapentinGabapentin17760
FurosemideFurosemide17356
AlprazolamAlprazolam15443
Fluticasone PropionateFluticasone Propionate15349
Metoprolol TartrateMetoprolol Tartrate14747
ClopidogrelClopidogrel Bisulfate13534
EliquisApixaban13427
Pravastatin SodiumPravastatin Sodium13444
Tramadol HclTramadol Hcl13437
Albuterol Sulfate HfaAlbuterol Sulfate13249
GlimepirideGlimepiride13242
Alendronate SodiumAlendronate Sodium12434
CarvedilolCarvedilol11738
Metformin Hcl ErMetformin Hcl10532
SimvastatinSimvastatin10532
Warfarin SodiumWarfarin Sodium10119
Trelegy ElliptaFluticasone/Umeclidin/Vilanter9819
OzempicSemaglutide9716
Sertraline HclSertraline Hcl9734
JardianceEmpagliflozin9423
Potassium ChloridePotassium Chloride9229
PrednisonePrednisone8849
AllopurinolAllopurinol8428
BaclofenBaclofen8433
Lantus SolostarInsulin Glargine,hum.Rec.Anlog7921
Duloxetine HclDuloxetine Hcl7618
Glipizide ErGlipizide7619
Oxybutynin Chloride ErOxybutynin Chloride7116
Montelukast SodiumMontelukast Sodium6920
Betamethasone Diprop AugmentedBetamethasone/Propylene Glyc6526
ClonazepamClonazepam6428
Escitalopram OxalateEscitalopram Oxalate6320
Citalopram HbrCitalopram Hydrobromide6213
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen6218
SynthroidLevothyroxine Sodium6116
Cyclobenzaprine HclCyclobenzaprine Hcl6014
LorazepamLorazepam5913
RybelsusSemaglutide5717
Venlafaxine Hcl ErVenlafaxine Hcl5613
ValsartanValsartan5417
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5219
XareltoRivaroxaban5113
Fluoxetine HclFluoxetine Hcl4812
Ipratropium BromideIpratropium Bromide4811
EzetimibeEzetimibe4317
FinasterideFinasteride4312
CelecoxibCelecoxib4214
LinzessLinaclotide42suppressed
SpironolactoneSpironolactone4111
Zolpidem TartrateZolpidem Tartrate4114
Doxepin HclDoxepin Hcl40suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol39suppressed
Ibandronate SodiumIbandronate Sodium3914
ValacyclovirValacyclovir Hcl3912
MeloxicamMeloxicam3814
TelmisartanTelmisartan3811
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril37suppressed
PregabalinPregabalin37suppressed
MyrbetriqMirabegron35suppressed
Benazepril HclBenazepril Hcl33suppressed
Ropinirole HclRopinirole Hcl33suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3315
Amitriptyline HclAmitriptyline Hcl32suppressed
Paroxetine HclParoxetine Hcl32suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog32suppressed
MirtazapineMirtazapine31suppressed
Morphine Sulfate ErMorphine Sulfate30suppressed
ChlorthalidoneChlorthalidone28suppressed
GlipizideGlipizide28suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide28suppressed
TorsemideTorsemide28suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine27suppressed
DigoxinDigoxin27suppressed
Ondansetron HclOndansetron Hcl2711
Doxazosin MesylateDoxazosin Mesylate26suppressed
FamotidineFamotidine25suppressed
MounjaroTirzepatide25suppressed
AtenololAtenolol24suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
CephalexinCephalexin2317
ColchicineColchicine2315
Diltiazem 24hr Er (Cd)Diltiazem Hcl23suppressed
Novolog FlexpenInsulin Aspart23suppressed
OxycontinOxycodone Hcl23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2220
Azelastine HclAzelastine Hcl22suppressed
FenofibrateFenofibrate Nanocrystallized22suppressed
MetolazoneMetolazone22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
Methylphenidate HclMethylphenidate Hcl21suppressed
MethylprednisoloneMethylprednisolone2118
Nano 2nd Gen Pen NeedlePen Needle, Diabetic21suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide21suppressed
FarxigaDapagliflozin Propanediol20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
LatanoprostLatanoprost20suppressed
Buspirone HclBuspirone Hcl19suppressed
Donepezil HclDonepezil Hcl19suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
Methenamine HippurateMethenamine Hippurate19suppressed
Tolterodine Tartrate ErTolterodine Tartrate19suppressed
TopiramateTopiramate19suppressed
LansoprazoleLansoprazole18suppressed
Propranolol Hcl ErPropranolol Hcl18suppressed
Sumatriptan SuccinateSumatriptan Succinate18suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate17suppressed
Propranolol HclPropranolol Hcl17suppressed
SymbicortBudesonide/Formoterol Fumarate17suppressed
TemazepamTemazepam17suppressed
Terazosin HclTerazosin Hcl17suppressed
Xtampza ErOxycodone Myristate17suppressed
BumetanideBumetanide16suppressed
Humalog Kwikpen U-100Insulin Lispro16suppressed
Memantine HclMemantine Hcl16suppressed
Nifedipine ErNifedipine16suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip14suppressed
EstradiolEstradiol14suppressed
IbuprofenIbuprofen14suppressed
LamotrigineLamotrigine14suppressed
NaproxenNaproxen14suppressed
Olmesartan MedoxomilOlmesartan Medoxomil14suppressed
Quetiapine FumarateQuetiapine Fumarate14suppressed
RamiprilRamipril14suppressed
Repatha SyringeEvolocumab14suppressed
AmoxicillinAmoxicillin1312
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
Clonidine HclClonidine Hcl13suppressed
DiazepamDiazepam13suppressed
Dilt-XrDiltiazem Hcl13suppressed
FenofibrateFenofibrate13suppressed
FenofibrateFenofibrate,micronized13suppressed
PrimidonePrimidone13suppressed
TrulicityDulaglutide13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
LovastatinLovastatin12suppressed
MethotrexateMethotrexate Sodium12suppressed
NabumetoneNabumetone12suppressed
RizatriptanRizatriptan Benzoate12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
AcyclovirAcyclovir11suppressed
AzithromycinAzithromycin1111
Pioglitazone HclPioglitazone 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 $16.30 · 1 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