Healthcare provider profile · identity verified

John T. Funai, M.D.

Cardiology · LIHUE, HI · NPI 1710082912

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
JardianceEmpagliflozin1030325
EntrestoSacubitril/Valsartan844257
XareltoRivaroxaban520127
Metoprolol SuccinateMetoprolol Succinate473149
EliquisApixaban443111
SpironolactoneSpironolactone350116
Atorvastatin CalciumAtorvastatin Calcium312106
ClopidogrelClopidogrel Bisulfate18160
FurosemideFurosemide18163
CarvedilolCarvedilol17646
Amiodarone HclAmiodarone Hcl16459
VerquvoVericiguat15238
Flecainide AcetateFlecainide Acetate9626
Rosuvastatin CalciumRosuvastatin Calcium9130
Metoprolol TartrateMetoprolol Tartrate9034
EzetimibeEzetimibe8525
WegovySemaglutide8329
Amlodipine BesylateAmlodipine Besylate7830
VascepaIcosapent Ethyl7725
Losartan PotassiumLosartan Potassium7126
OzempicSemaglutide6422
SimvastatinSimvastatin6019
AtenololAtenolol5716
LisinoprilLisinopril5524
Diltiazem 24hr Er (Cd)Diltiazem Hcl4920
Repatha SureclickEvolocumab49suppressed
NitroglycerinNitroglycerin4227
Pravastatin SodiumPravastatin Sodium4116
FarxigaDapagliflozin Propanediol38suppressed
Pantoprazole SodiumPantoprazole Sodium3513
FenofibrateFenofibrate Nanocrystallized28suppressed
Potassium ChloridePotassium Chloride26suppressed
CorlanorIvabradine Hcl24suppressed
Repatha SyringeEvolocumab24suppressed
Hydralazine HclHydralazine Hcl23suppressed
DigoxinDigoxin22suppressed
EplerenoneEplerenone20suppressed
VyndamaxTafamidis17suppressed
AmoxicillinAmoxicillin16suppressed
Ranolazine ErRanolazine16suppressed
BrilintaTicagrelor15suppressed
HydrochlorothiazideHydrochlorothiazide15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate14suppressed
BumetanideBumetanide13suppressed
Icosapent EthylIcosapent Ethyl13suppressed
Levothyroxine SodiumLevothyroxine Sodium13suppressed
Isosorbide DinitrateIsosorbide Dinitrate12suppressed
Praluent PenAlirocumab12suppressed
ColchicineColchicine11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
PradaxaDabigatran Etexilate Mesylate11suppressed
SotalolSotalol Hcl11suppressed
ValsartanValsartan11suppressed

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