Healthcare provider profile · identity verified

William Joshua Kaplan, DO

Family Practice · NEW FAIRFIELD, CT · NPI 1225566631

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 Calcium437131
Amlodipine BesylateAmlodipine Besylate29789
LisinoprilLisinopril19256
Levothyroxine SodiumLevothyroxine Sodium17247
Losartan PotassiumLosartan Potassium17256
HydrochlorothiazideHydrochlorothiazide14647
Metformin HclMetformin Hcl12437
Metoprolol SuccinateMetoprolol Succinate11633
Pantoprazole SodiumPantoprazole Sodium9729
Rosuvastatin CalciumRosuvastatin Calcium9327
AllopurinolAllopurinol7221
SimvastatinSimvastatin6319
GabapentinGabapentin6021
Sertraline HclSertraline Hcl6014
FurosemideFurosemide5322
EzetimibeEzetimibe5115
Metoprolol TartrateMetoprolol Tartrate5115
Escitalopram OxalateEscitalopram Oxalate4619
JardianceEmpagliflozin4215
Trazodone HclTrazodone Hcl4017
Zolpidem TartrateZolpidem Tartrate38suppressed
Pravastatin SodiumPravastatin Sodium3712
Tamsulosin HclTamsulosin Hcl37suppressed
Alendronate SodiumAlendronate Sodium33suppressed
AtenololAtenolol3211
DiazepamDiazepam32suppressed
PrednisonePrednisone3232
FamotidineFamotidine3011
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2926
GlimepirideGlimepiride29suppressed
Bupropion XlBupropion Hcl28suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide28suppressed
OzempicSemaglutide28suppressed
AlprazolamAlprazolam24suppressed
ClonazepamClonazepam24suppressed
EliquisApixaban24suppressed
JanuviaSitagliptin Phosphate24suppressed
OmeprazoleOmeprazole23suppressed
TradjentaLinagliptin22suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
SynthroidLevothyroxine Sodium20suppressed
Albuterol Sulfate HfaAlbuterol Sulfate1912
Doxycycline MonohydrateDoxycycline Monohydrate1918
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1918
AzithromycinAzithromycin1818
Breo ElliptaFluticasone/Vilanterol18suppressed
LorazepamLorazepam17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
XareltoRivaroxaban16suppressed
Amlodipine-AtorvastatinAmlodipine/Atorvastatin15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
FinasterideFinasteride14suppressed
IrbesartanIrbesartan14suppressed
MounjaroTirzepatide14suppressed
NystatinNystatin14suppressed
Potassium ChloridePotassium Chloride14suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med13suppressed
Glipizide ErGlipizide13suppressed
Montelukast SodiumMontelukast Sodium13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
Buspirone HclBuspirone Hcl12suppressed
Donepezil HclDonepezil Hcl12suppressed
Folic AcidFolic Acid12suppressed
GlipizideGlipizide12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid12suppressed
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen12suppressed
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide11suppressed
ChlorthalidoneChlorthalidone11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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