Healthcare provider profile · identity verified

Peter N. Katsaros, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · NORTON, OH · NPI 1144203910

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 Peter N. Katsaros, M.D. received $141.52 in general payments during 2025 across 8 reported records.

Amgen Inc. accounted for 21.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

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

Amgen 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 OTEZLA as an associated drug or biological on 177267 records involving 48600 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Otezla 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Ozempic by this doctor in 2024.

PFIZER 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 ABRYSVO as an associated drug or biological on 55380 records involving 31565 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Abrysvo by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 336 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$141.52

8 reported records · 6 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 $30.1321.3%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $30.1021.3%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $29.5520.9%22025
PFIZER INC. Unresolved — no canonical attribution shown $21.5015.2%12025
Abbott Laboratories Unresolved — no canonical attribution shown $16.3211.5%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $13.929.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$141.528

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
OTEZLA
Normalized: otezla
Drug Amgen Inc. $30.13 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $30.13 2 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $30.10 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $21.50 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $21.50 1 2025
Source payment records
FREESTYLE LIBRE 2
Normalized: freestyle libre 2
Device Abbott Laboratories $16.32 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $15.00 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $15.00 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $14.55 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $13.92 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $13.92 1 2025
Source payment records
VAXNEUVANCE
Normalized: vaxneuvance
Biological Merck Sharp & Dohme LLC $13.92 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
OTEZLA
otezla
2025 Otezla 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 30
Beneficiary count suppressed
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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 OTEZLA
open payments reported associated product
CMS Open Payments — General Payments
177267 supporting records · 48600 recipient NPIs · example record 1226871616
Otezla · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
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
30 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ABRYSVO
open payments reported associated product
CMS Open Payments — General Payments
55380 supporting records · 31565 recipient NPIs · example record 1228794147
Abrysvo · 2024
Exact normalized brand match · 1 Part D row
32 32
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
336 43
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
22 22

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 Sodium756113
Atorvastatin CalciumAtorvastatin Calcium710127
Amlodipine BesylateAmlodipine Besylate520103
FurosemideFurosemide36250
LisinoprilLisinopril34458
EliquisApixaban33643
Pantoprazole SodiumPantoprazole Sodium33162
OmeprazoleOmeprazole32975
GabapentinGabapentin30363
Metoprolol SuccinateMetoprolol Succinate27952
Metformin HclMetformin Hcl27058
Tamsulosin HclTamsulosin Hcl24248
Potassium ChloridePotassium Chloride23641
Metoprolol TartrateMetoprolol Tartrate20940
CarvedilolCarvedilol20230
Donepezil HclDonepezil Hcl20027
Losartan PotassiumLosartan Potassium19440
PrednisonePrednisone19479
Sertraline HclSertraline Hcl18939
AzithromycinAzithromycin187103
Quetiapine FumarateQuetiapine Fumarate18126
ClopidogrelClopidogrel Bisulfate15023
GlimepirideGlimepiride14726
MirtazapineMirtazapine14428
HydrochlorothiazideHydrochlorothiazide13535
Trazodone HclTrazodone Hcl13529
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12820
Fluticasone PropionateFluticasone Propionate12645
Duloxetine HclDuloxetine Hcl12521
Escitalopram OxalateEscitalopram Oxalate12523
Pravastatin SodiumPravastatin Sodium11626
Rosuvastatin CalciumRosuvastatin Calcium11628
SimvastatinSimvastatin11626
Zolpidem TartrateZolpidem Tartrate11526
Memantine HclMemantine Hcl10916
Albuterol Sulfate HfaAlbuterol Sulfate10851
Buspirone HclBuspirone Hcl10519
Fluoxetine HclFluoxetine Hcl9018
Warfarin SodiumWarfarin Sodium90suppressed
FamotidineFamotidine8619
MeloxicamMeloxicam8216
Citalopram HbrCitalopram Hydrobromide8118
Venlafaxine Hcl ErVenlafaxine Hcl8111
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst7731
PregabalinPregabalin7511
SpironolactoneSpironolactone7416
AllopurinolAllopurinol71suppressed
Montelukast SodiumMontelukast Sodium7119
TradjentaLinagliptin6911
Carbidopa-LevodopaCarbidopa/Levodopa68suppressed
Tizanidine HclTizanidine Hcl6816
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav6741
Divalproex SodiumDivalproex Sodium67suppressed
MyrbetriqMirabegron66suppressed
Ciprofloxacin HclCiprofloxacin Hcl6544
Clonidine HclClonidine Hcl6514
LatanoprostLatanoprost6512
TorsemideTorsemide6213
Tramadol HclTramadol Hcl6215
Alendronate SodiumAlendronate Sodium6112
Hydroxyzine PamoateHydroxyzine Pamoate6128
Isosorbide Mononitrate ErIsosorbide Mononitrate60suppressed
Ropinirole HclRopinirole Hcl6011
FinasterideFinasteride5912
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen55suppressed
Amiodarone HclAmiodarone Hcl54suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium5413
Diltiazem 24hr Er (Cd)Diltiazem Hcl53suppressed
Dicyclomine HclDicyclomine Hcl5213
AmoxicillinAmoxicillin5127
Benazepril HclBenazepril Hcl5115
Midodrine HclMidodrine Hcl50suppressed
Doxycycline HyclateDoxycycline Hyclate4924
SucralfateSucralfate4813
XareltoRivaroxaban47suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip4523
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4511
EzetimibeEzetimibe4411
Hydralazine HclHydralazine Hcl4111
JardianceEmpagliflozin41suppressed
LevetiracetamLevetiracetam41suppressed
LorazepamLorazepam41suppressed
ZaleplonZaleplon4111
CefuroximeCefuroxime Axetil4029
IbuprofenIbuprofen4013
SynthroidLevothyroxine Sodium40suppressed
Verapamil ErVerapamil Hcl40suppressed
JanuviaSitagliptin Phosphate38suppressed
Bupropion Hcl SrBupropion Hcl37suppressed
EntrestoSacubitril/Valsartan37suppressed
Oxybutynin Chloride ErOxybutynin Chloride37suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3716
Ondansetron HclOndansetron Hcl3524
Paroxetine HclParoxetine Hcl34suppressed
Metoclopramide HclMetoclopramide Hcl33suppressed
AbrysvoRsv Vacc, Pref A And Pref B/Pf3232
Fludrocortisone AcetateFludrocortisone Acetate32suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide31suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen31suppressed
Ranolazine ErRanolazine31suppressed
AripiprazoleAripiprazole30suppressed
CephalexinCephalexin3016
Hydroxyzine HclHydroxyzine Hcl30suppressed
LovastatinLovastatin30suppressed
OzempicSemaglutide30suppressed
Venlafaxine HclVenlafaxine Hcl30suppressed
NitroglycerinNitroglycerin2924
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid29suppressed
Flecainide AcetateFlecainide Acetate28suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate2811
Ondansetron OdtOndansetron28suppressed
CorlanorIvabradine Hcl27suppressed
FluconazoleFluconazole2719
Humulin R U-500 KwikpenInsulin Regular, Human27suppressed
Methenamine HippurateMethenamine Hippurate27suppressed
Nifedipine ErNifedipine27suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters27suppressed
Oxycodone HclOxycodone Hcl27suppressed
Risedronate SodiumRisedronate Sodium27suppressed
ValsartanValsartan27suppressed
Amitriptyline HclAmitriptyline Hcl26suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro2612
Cyclobenzaprine HclCyclobenzaprine Hcl2511
LactuloseLactulose25suppressed
LevofloxacinLevofloxacin2512
Trospium ChlorideTrospium Chloride25suppressed
AtenololAtenolol24suppressed
Diclofenac SodiumDiclofenac Sodium23suppressed
ErtapenemErtapenem Sodium23suppressed
TrulicityDulaglutide23suppressed
BaclofenBaclofen22suppressed
Bupropion XlBupropion Hcl22suppressed
Isosorbide DinitrateIsosorbide Dinitrate22suppressed
PaxlovidNirmatrelvir/Ritonavir2222
RivastigmineRivastigmine Tartrate22suppressed
ClonidineClonidine21suppressed
GlipizideGlipizide21suppressed
Pioglitazone HclPioglitazone Hcl21suppressed
CalcitriolCalcitriol20suppressed
Klor-Con M20Potassium Chloride20suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
NystatinNystatin2013
Sumatriptan SuccinateSumatriptan Succinate20suppressed
TelmisartanTelmisartan20suppressed
Albuterol SulfateAlbuterol Sulfate19suppressed
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide19suppressed
Doxycycline MonohydrateDoxycycline Monohydrate19suppressed
RisperidoneRisperidone19suppressed
CarbamazepineCarbamazepine18suppressed
ColchicineColchicine18suppressed
LansoprazoleLansoprazole18suppressed
ZonisamideZonisamide18suppressed
BumetanideBumetanide17suppressed
Diltiazem HclDiltiazem Hcl17suppressed
Humalog Kwikpen U-100Insulin Lispro17suppressed
Oxybutynin ChlorideOxybutynin Chloride17suppressed
Spiriva RespimatTiotropium Bromide17suppressed
TopiramateTopiramate17suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic16suppressed
Clobetasol PropionateClobetasol Propionate16suppressed
Divalproex Sodium ErDivalproex Sodium16suppressed
EstradiolEstradiol16suppressed
Propranolol HclPropranolol Hcl16suppressed
CefdinirCefdinir1512
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
Meclizine HclMeclizine Hcl15suppressed
Norethindrone AcetateNorethindrone Acetate15suppressed
Alfuzosin Hcl ErAlfuzosin Hcl14suppressed
AmantadineAmantadine Hcl14suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr14suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
Brimonidine TartrateBrimonidine Tartrate14suppressed
Butalbital-Aspirin-CaffeineButalbital/Aspirin/Caffeine14suppressed
Chlorpromazine HclChlorpromazine Hcl14suppressed
ChlorthalidoneChlorthalidone14suppressed
ClonazepamClonazepam14suppressed
Colesevelam HclColesevelam Hcl14suppressed
DigoxinDigoxin14suppressed
Donepezil Hcl OdtDonepezil Hcl14suppressed
Kapspargo SprinkleMetoprolol Succinate14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
CelecoxibCelecoxib13suppressed
IrbesartanIrbesartan13suppressed
LoperamideLoperamide Hcl13suppressed
MounjaroTirzepatide13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Vancomycin HclVancomycin Hcl13suppressed
Verapamil SrVerapamil Hcl13suppressed
Armour ThyroidThyroid,pork12suppressed
DuleraMometasone/Formoterol12suppressed
EszopicloneEszopiclone12suppressed
GemfibrozilGemfibrozil12suppressed
HydrocortisoneHydrocortisone12suppressed
Megestrol AcetateMegestrol Acetate12suppressed
NitrofurantoinNitrofurantoin Macrocrystal12suppressed
OtezlaApremilast12suppressed
Promethazine HclPromethazine Hcl12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
RizatriptanRizatriptan Benzoate12suppressed
Sevelamer CarbonateSevelamer Carbonate12suppressed
Timolol MaleateTimolol Maleate12suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Bupropion HclBupropion Hcl11suppressed
CholestyramineCholestyramine (With Sugar)11suppressed
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat11suppressed
EthosuximideEthosuximide11suppressed
FamciclovirFamciclovir11suppressed
Folic AcidFolic Acid11suppressed
Ipratropium BromideIpratropium Bromide11suppressed
LidocaineLidocaine11suppressed
MupirocinMupirocin11suppressed
Prazosin HclPrazosin Hcl11suppressed
Tolterodine Tartrate ErTolterodine Tartrate11suppressed

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 $141.52 · 8 records Amgen Inc. Auvelity, CAPVAXIVE, FREESTYLE LIBRE 2, GARDASIL 9, NURTEC ODT, OTEZLA, Ozempic, REPATHA, Rybelsus, VAXNEUVANCE, Wegovy, ZAVZPRET 5
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