Healthcare provider profile · identity verified

Thomas M. Karoff, DO

Internal Medicine · MT KISCO, NY · NPI 1366642142

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium500145
Levothyroxine SodiumLevothyroxine Sodium17146
Escitalopram OxalateEscitalopram Oxalate16460
Amlodipine BesylateAmlodipine Besylate15849
LisinoprilLisinopril14742
Rosuvastatin CalciumRosuvastatin Calcium11837
SimvastatinSimvastatin11328
Losartan PotassiumLosartan Potassium9631
HydrochlorothiazideHydrochlorothiazide9327
Metformin HclMetformin Hcl8725
OmeprazoleOmeprazole8328
Metoprolol SuccinateMetoprolol Succinate7525
ChlorthalidoneChlorthalidone7124
Zolpidem TartrateZolpidem Tartrate6917
AllopurinolAllopurinol6120
FurosemideFurosemide6021
Pantoprazole SodiumPantoprazole Sodium5322
Enalapril MaleateEnalapril Maleate5114
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5017
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4644
SynthroidLevothyroxine Sodium4312
Tamsulosin HclTamsulosin Hcl4313
EliquisApixaban41suppressed
Metoprolol TartrateMetoprolol Tartrate3911
Esomeprazole MagnesiumEsomeprazole Magnesium3711
Pravastatin SodiumPravastatin Sodium37suppressed
Sertraline HclSertraline Hcl3711
AlprazolamAlprazolam3311
EzetimibeEzetimibe3311
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril3111
MirtazapineMirtazapine3111
Metformin Hcl ErMetformin Hcl29suppressed
MounjaroTirzepatide28suppressed
PrednisonePrednisone2725
Cyclobenzaprine HclCyclobenzaprine Hcl2615
AtenololAtenolol25suppressed
Montelukast SodiumMontelukast Sodium25suppressed
CelecoxibCelecoxib24suppressed
NaproxenNaproxen2421
ClonazepamClonazepam23suppressed
FenofibrateFenofibrate Nanocrystallized23suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
HydrocortisoneHydrocortisone21suppressed
GlimepirideGlimepiride20suppressed
ValsartanValsartan20suppressed
Warfarin SodiumWarfarin Sodium19suppressed
Bupropion XlBupropion Hcl18suppressed
RamiprilRamipril18suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1817
XareltoRivaroxaban18suppressed
PaxlovidNirmatrelvir/Ritonavir1717
Albuterol Sulfate HfaAlbuterol Sulfate1611
ColchicineColchicine16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Sildenafil CitrateSildenafil Citrate16suppressed
Ciprofloxacin HclCiprofloxacin Hcl1513
ClopidogrelClopidogrel Bisulfate15suppressed
Duloxetine HclDuloxetine Hcl15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
AzithromycinAzithromycin1414
FinasterideFinasteride14suppressed
GabapentinGabapentin14suppressed
TemazepamTemazepam14suppressed
Tramadol HclTramadol Hcl14suppressed
Trazodone HclTrazodone Hcl14suppressed
FamotidineFamotidine13suppressed
CarvedilolCarvedilol12suppressed
CephalexinCephalexin1212
Potassium ChloridePotassium Chloride12suppressed
SpironolactoneSpironolactone12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
BaclofenBaclofen11suppressed
Fluticasone Propionate HfaFluticasone Propionate11suppressed
IbuprofenIbuprofen11suppressed
MyrbetriqMirabegron11suppressed
Spiriva HandihalerTiotropium Bromide11suppressed
ValacyclovirValacyclovir 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
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