Healthcare provider profile · identity verified

John Toksoy, M. D.

Internal Medicine · NEW HAVEN, CT · NPI 1396773511

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 Calcium394134
Losartan PotassiumLosartan Potassium387123
Amlodipine BesylateAmlodipine Besylate29192
SimvastatinSimvastatin22866
Rosuvastatin CalciumRosuvastatin Calcium20868
Levothyroxine SodiumLevothyroxine Sodium16354
HydrochlorothiazideHydrochlorothiazide16260
LisinoprilLisinopril14547
Metoprolol SuccinateMetoprolol Succinate12143
Tamsulosin HclTamsulosin Hcl9031
AtenololAtenolol7321
AllopurinolAllopurinol7021
OmeprazoleOmeprazole7024
JardianceEmpagliflozin5317
Glipizide ErGlipizide5114
Trijardy XrEmpaglifloz/Linaglip/Metformin4614
Trazodone HclTrazodone Hcl4417
EliquisApixaban4317
Metformin Hcl ErMetformin Hcl4319
Pantoprazole SodiumPantoprazole Sodium4019
GabapentinGabapentin3712
Montelukast SodiumMontelukast Sodium3616
Zolpidem TartrateZolpidem Tartrate3412
Albuterol Sulfate HfaAlbuterol Sulfate3213
Escitalopram OxalateEscitalopram Oxalate31suppressed
EzetimibeEzetimibe3111
KetoconazoleKetoconazole30suppressed
Sertraline HclSertraline Hcl30suppressed
Metoprolol TartrateMetoprolol Tartrate2911
Donepezil HclDonepezil Hcl27suppressed
OzempicSemaglutide26suppressed
FinasterideFinasteride25suppressed
Metformin HclMetformin Hcl24suppressed
Tramadol HclTramadol Hcl24suppressed
FenofibrateFenofibrate Nanocrystallized23suppressed
JanuviaSitagliptin Phosphate23suppressed
FurosemideFurosemide22suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide22suppressed
MeloxicamMeloxicam22suppressed
DiazepamDiazepam21suppressed
ColchicineColchicine20suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1915
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
PrednisonePrednisone18suppressed
Duloxetine HclDuloxetine Hcl17suppressed
FamotidineFamotidine17suppressed
LorazepamLorazepam1712
Synjardy XrEmpagliflozin/Metformin Hcl17suppressed
AlprazolamAlprazolam16suppressed
Azelastine HclAzelastine Hcl16suppressed
Carvedilol ErCarvedilol Phosphate16suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16suppressed
Pravastatin SodiumPravastatin Sodium16suppressed
MounjaroTirzepatide15suppressed
SynjardyEmpagliflozin/Metformin Hcl15suppressed
Wixela InhubFluticasone Propion/Salmeterol14suppressed
CarvedilolCarvedilol13suppressed
Potassium ChloridePotassium Chloride13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
PaxlovidNirmatrelvir/Ritonavir1111
Pioglitazone HclPioglitazone Hcl11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed

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