Healthcare provider profile · identity verified

Frederick Karoub, MD

Allopathic & Osteopathic Physicians|Internal Medicine · ROYAL OAK, MI · NPI 1679554562

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 Frederick Karoub, MD received $20.37 in general payments during 2025 across 1 reported records.

Novo Nordisk Inc accounted for 100.0% of that reported general-payment amount.

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

A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 140 claims for Ozempic by this doctor in 2024.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Wegovy as an associated drug or biological on 183056 records involving 75256 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Wegovy by this doctor in 2024.

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

Payment overview · 2025

General Payments

$20.37

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
Novo Nordisk Inc Unresolved — no canonical attribution shown $20.37100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$20.371

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $20.37 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $20.37 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Ozempic
ozempic
2025 Ozempic 2024 140 exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
140 30
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Wegovy
open payments reported associated product
CMS Open Payments — General Payments
183056 supporting records · 75256 recipient NPIs · example record 1188130070
Wegovy · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS

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 Calcium917235
Levothyroxine SodiumLevothyroxine Sodium417105
Amlodipine BesylateAmlodipine Besylate391102
AlprazolamAlprazolam38283
OmeprazoleOmeprazole30985
LisinoprilLisinopril27863
Metoprolol SuccinateMetoprolol Succinate27172
Metoprolol TartrateMetoprolol Tartrate24851
Albuterol Sulfate HfaAlbuterol Sulfate23599
EliquisApixaban22847
Tamsulosin HclTamsulosin Hcl21167
Rosuvastatin CalciumRosuvastatin Calcium20364
ClopidogrelClopidogrel Bisulfate20046
Metformin HclMetformin Hcl19450
FurosemideFurosemide18455
PregabalinPregabalin17845
GabapentinGabapentin17127
MethylprednisoloneMethylprednisolone166125
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen15627
Losartan PotassiumLosartan Potassium15451
AzithromycinAzithromycin147111
CarvedilolCarvedilol14536
Fluticasone PropionateFluticasone Propionate14160
OzempicSemaglutide14030
Potassium ChloridePotassium Chloride14044
MeloxicamMeloxicam13854
Pantoprazole SodiumPantoprazole Sodium12641
MirtazapineMirtazapine12328
Hydralazine HclHydralazine Hcl11931
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen11439
Montelukast SodiumMontelukast Sodium10831
MethocarbamolMethocarbamol10720
Duloxetine HclDuloxetine Hcl10025
Trazodone HclTrazodone Hcl9820
Quetiapine FumarateQuetiapine Fumarate9616
Paroxetine HclParoxetine Hcl9421
Bupropion XlBupropion Hcl9124
Fluoxetine HclFluoxetine Hcl9123
FinasterideFinasteride8728
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid8726
Zolpidem TartrateZolpidem Tartrate8716
Citalopram HbrCitalopram Hydrobromide8623
IbuprofenIbuprofen8122
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8125
MounjaroTirzepatide8113
AllopurinolAllopurinol8017
Pravastatin SodiumPravastatin Sodium7721
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7525
Escitalopram OxalateEscitalopram Oxalate7413
RepaglinideRepaglinide7418
FamotidineFamotidine7027
LorazepamLorazepam6913
SimvastatinSimvastatin6819
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen67suppressed
Tizanidine HclTizanidine Hcl6722
Donepezil HclDonepezil Hcl6315
Breo ElliptaFluticasone/Vilanterol6214
Diclofenac SodiumDiclofenac Sodium5812
PrednisonePrednisone5741
Sertraline HclSertraline Hcl5715
Buspirone HclBuspirone Hcl5622
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril5513
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl55suppressed
ClonazepamClonazepam55suppressed
HydrochlorothiazideHydrochlorothiazide5518
DiazepamDiazepam5311
Meclizine HclMeclizine Hcl5323
Venlafaxine Hcl ErVenlafaxine Hcl52suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5113
Tramadol HclTramadol Hcl5111
Doxepin HclDoxepin Hcl4919
AtenololAtenolol45suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate44suppressed
EzetimibeEzetimibe4213
Alendronate SodiumAlendronate Sodium4012
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc40suppressed
CephalexinCephalexin4033
Memantine HclMemantine Hcl4012
Oxycodone HclOxycodone Hcl40suppressed
ValsartanValsartan3911
Cyclobenzaprine HclCyclobenzaprine Hcl3814
Amitriptyline HclAmitriptyline Hcl37suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine37suppressed
GlimepirideGlimepiride37suppressed
JanumetSitagliptin Phos/Metformin Hcl36suppressed
JardianceEmpagliflozin3611
LidocaineLidocaine36suppressed
Methylphenidate HclMethylphenidate Hcl36suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3622
Warfarin SodiumWarfarin Sodium36suppressed
FenofibrateFenofibrate35suppressed
DigoxinDigoxin34suppressed
Solifenacin SuccinateSolifenacin Succinate34suppressed
Ondansetron OdtOndansetron3314
TelmisartanTelmisartan3312
LevetiracetamLevetiracetam32suppressed
NaproxenNaproxen3211
XareltoRivaroxaban3211
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid3114
FenofibrateFenofibrate,micronized29suppressed
SpironolactoneSpironolactone29suppressed
EntrestoSacubitril/Valsartan28suppressed
JanuviaSitagliptin Phosphate28suppressed
TopiramateTopiramate28suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide28suppressed
Ranolazine ErRanolazine27suppressed
HydrocortisoneHydrocortisone26suppressed
NitroglycerinNitroglycerin26suppressed
Ventolin HfaAlbuterol Sulfate2614
EstradiolEstradiol25suppressed
ZubsolvBuprenorphine Hcl/Naloxone Hcl25suppressed
Acetaminophen-CodeineAcetaminophen With Codeine24suppressed
Amiodarone HclAmiodarone Hcl24suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl24suppressed
Vitamin D2Ergocalciferol (Vitamin D2)24suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol23suppressed
Novofine AutocoverPen Needle, Diabetic, Safety23suppressed
ValacyclovirValacyclovir Hcl2313
Ciprofloxacin HclCiprofloxacin Hcl2221
LansoprazoleLansoprazole22suppressed
MyrbetriqMirabegron22suppressed
CelecoxibCelecoxib21suppressed
Dicyclomine HclDicyclomine Hcl21suppressed
Novolog FlexpenInsulin Aspart21suppressed
Folic AcidFolic Acid20suppressed
Midodrine HclMidodrine Hcl20suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters20suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine19suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate19suppressed
Repatha SureclickEvolocumab19suppressed
AcyclovirAcyclovir17suppressed
Bupropion Hcl SrBupropion Hcl17suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)17suppressed
NystatinNystatin17suppressed
PaxlovidNirmatrelvir/Ritonavir1717
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
Humalog Kwikpen U-100Insulin Lispro16suppressed
Nifedipine ErNifedipine16suppressed
NystopNystatin16suppressed
OlanzapineOlanzapine16suppressed
Armour ThyroidThyroid,pork15suppressed
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid15suppressed
CilostazolCilostazol15suppressed
Comfort Ez Pen NeedlePen Needle, Diabetic15suppressed
FluconazoleFluconazole15suppressed
Methenamine HippurateMethenamine Hippurate15suppressed
Oxybutynin Chloride ErOxybutynin Chloride15suppressed
Vilazodone HclVilazodone Hcl15suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine14suppressed
Doxazosin MesylateDoxazosin Mesylate14suppressed
FenofibrateFenofibrate Nanocrystallized14suppressed
LevofloxacinLevofloxacin1411
PrimidonePrimidone14suppressed
TestosteroneTestosterone14suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter14suppressed
Azelastine HclAzelastine Hcl13suppressed
Carbidopa-LevodopaCarbidopa/Levodopa13suppressed
Cyproheptadine HclCyproheptadine Hcl13suppressed
Flecainide AcetateFlecainide Acetate13suppressed
Icosapent EthylIcosapent Ethyl13suppressed
Klor-Con M10Potassium Chloride13suppressed
LatanoprostLatanoprost13suppressed
Lithium Carbonate ErLithium Carbonate13suppressed
LovastatinLovastatin13suppressed
Metformin Hcl ErMetformin Hcl13suppressed
Nitroglycerin PatchNitroglycerin13suppressed
WegovySemaglutide13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav12suppressed
AzathioprineAzathioprine12suppressed
Buprenorphine HclBuprenorphine Hcl12suppressed
Pyridostigmine BromidePyridostigmine Bromide12suppressed
Raloxifene HclRaloxifene Hcl12suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl12suppressed
CarbamazepineCarbamazepine11suppressed
LamotrigineLamotrigine11suppressed
MinoxidilMinoxidil11suppressed
Qvar RedihalerBeclomethasone Dipropionate11suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic11suppressed
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 $20.37 · 1 records Novo Nordisk Inc Ozempic, Rybelsus 2
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