Healthcare provider profile · identity verified

Megan Ishikawa, MD

Family Practice · INDIANAPOLIS, IN · NPI 1649705138

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 Calcium33991
Levothyroxine SodiumLevothyroxine Sodium21853
LisinoprilLisinopril16747
Amlodipine BesylateAmlodipine Besylate14238
Losartan PotassiumLosartan Potassium14035
OmeprazoleOmeprazole11234
Pantoprazole SodiumPantoprazole Sodium9322
Pravastatin SodiumPravastatin Sodium8927
Metformin HclMetformin Hcl8720
HydrochlorothiazideHydrochlorothiazide7822
EliquisApixaban6717
Montelukast SodiumMontelukast Sodium6414
Metoprolol TartrateMetoprolol Tartrate6313
Albuterol Sulfate HfaAlbuterol Sulfate6225
Metoprolol SuccinateMetoprolol Succinate5919
Rosuvastatin CalciumRosuvastatin Calcium5720
SimvastatinSimvastatin5714
Sertraline HclSertraline Hcl5415
Fluoxetine HclFluoxetine Hcl5014
Cyclobenzaprine HclCyclobenzaprine Hcl46suppressed
Tamsulosin HclTamsulosin Hcl4515
CarvedilolCarvedilol44suppressed
Duloxetine HclDuloxetine Hcl43suppressed
IrbesartanIrbesartan39suppressed
Potassium ChloridePotassium Chloride3912
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide35suppressed
Metformin Hcl ErMetformin Hcl3512
Alendronate SodiumAlendronate Sodium34suppressed
FurosemideFurosemide33suppressed
Escitalopram OxalateEscitalopram Oxalate32suppressed
MounjaroTirzepatide32suppressed
Trazodone HclTrazodone Hcl3111
Buspirone HclBuspirone Hcl29suppressed
OzempicSemaglutide29suppressed
Venlafaxine Hcl ErVenlafaxine Hcl29suppressed
AllopurinolAllopurinol27suppressed
Amitriptyline HclAmitriptyline Hcl27suppressed
GabapentinGabapentin27suppressed
Ondansetron OdtOndansetron2615
Bupropion XlBupropion Hcl25suppressed
Breo ElliptaFluticasone/Vilanterol24suppressed
FamotidineFamotidine24suppressed
Zolpidem TartrateZolpidem Tartrate23suppressed
Carbidopa-LevodopaCarbidopa/Levodopa21suppressed
MeloxicamMeloxicam20suppressed
PrednisonePrednisone1918
Ropinirole HclRopinirole Hcl19suppressed
TopiramateTopiramate19suppressed
Fluticasone PropionateFluticasone Propionate17suppressed
Nifedipine ErNifedipine17suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
LansoprazoleLansoprazole16suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
PregabalinPregabalin14suppressed
TrulicityDulaglutide14suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
NaproxenNaproxen13suppressed
Spiriva RespimatTiotropium Bromide13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1212
BaclofenBaclofen12suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Glipizide ErGlipizide12suppressed
JardianceEmpagliflozin12suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads11suppressed
Doxazosin MesylateDoxazosin Mesylate11suppressed
GlimepirideGlimepiride11suppressed
LovastatinLovastatin11suppressed
Promethazine HclPromethazine Hcl11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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