Healthcare provider profile · identity verified

Wonil Tae, MD

Internal Medicine · ALTON, IL · NPI 1336301779

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
OzempicSemaglutide440120
Lantus SolostarInsulin Glargine,hum.Rec.Anlog393122
MounjaroTirzepatide35677
Metformin HclMetformin Hcl32390
Levothyroxine SodiumLevothyroxine Sodium30577
JardianceEmpagliflozin26267
Nano 2nd Gen Pen NeedlePen Needle, Diabetic22092
GlipizideGlipizide20668
GlimepirideGlimepiride15645
TrulicityDulaglutide15640
Humalog Kwikpen U-100Insulin Lispro15165
Metformin Hcl ErMetformin Hcl12539
Tresiba Flextouch U-100Insulin Degludec12441
Novolog FlexpenInsulin Aspart11246
Insulin Lispro Kwikpen U-100Insulin Lispro10845
Humulin R U-500 KwikpenInsulin Regular, Human10420
MethimazoleMethimazole9624
Atorvastatin CalciumAtorvastatin Calcium7720
JanuviaSitagliptin Phosphate6014
Ultra-Fine Short Pen NeedlePen Needle, Diabetic6026
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog5421
Fiasp FlextouchInsulin Aspart (Niacinamide)5422
Pioglitazone HclPioglitazone Hcl5014
Trueplus Pen NeedlePen Needle, Diabetic4924
Alendronate SodiumAlendronate Sodium4617
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp4215
LisinoprilLisinopril41suppressed
Tresiba Flextouch U-200Insulin Degludec4114
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic3316
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro32suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic3213
GabapentinGabapentin3111
Testosterone CypionateTestosterone Cypionate31suppressed
FarxigaDapagliflozin Propanediol28suppressed
SynthroidLevothyroxine Sodium28suppressed
Glipizide ErGlipizide27suppressed
HydrocortisoneHydrocortisone26suppressed
Novolin NInsulin Nph Human Isophane25suppressed
TradjentaLinagliptin25suppressed
Droplet Pen NeedlePen Needle, Diabetic22suppressed
Ultra-Fine Micro Pen NeedlePen Needle, Diabetic22suppressed
Novolin N FlexpenInsulin Nph Human Isophane21suppressed
LovastatinLovastatin20suppressed
Novolin RInsulin Regular, Human20suppressed
HumalogInsulin Lispro17suppressed
Insulin Lispro Protamine MixInsulin Lispro Protamin/Lispro17suppressed
LantusInsulin Glargine,hum.Rec.Anlog17suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
FiaspInsulin Aspart (Niacinamide)16suppressed
Humulin 70/30 KwikpenInsulin Nph Hum/Reg Insulin Hm15suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
Semglee (Yfgn) PenInsulin Glargine-Yfgn14suppressed
Liothyronine SodiumLiothyronine Sodium13suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/713suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
Admelog SolostarInsulin Lispro12suppressed
Techlite Pen NeedlePen Needle, Diabetic12suppressed

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