Healthcare provider profile · identity verified

Eun-Young Ahn, M.D.

Family Practice · OLYMPIA, WA · NPI 1497141162

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
Levothyroxine SodiumLevothyroxine Sodium17447
Rosuvastatin CalciumRosuvastatin Calcium17351
Atorvastatin CalciumAtorvastatin Calcium16147
Losartan PotassiumLosartan Potassium15246
LisinoprilLisinopril12540
OmeprazoleOmeprazole9628
Amlodipine BesylateAmlodipine Besylate9131
GabapentinGabapentin8828
HydrochlorothiazideHydrochlorothiazide8828
Metoprolol SuccinateMetoprolol Succinate6821
SimvastatinSimvastatin6820
Sertraline HclSertraline Hcl6117
Metformin Hcl ErMetformin Hcl5518
Alendronate SodiumAlendronate Sodium4211
Trazodone HclTrazodone Hcl4116
CarvedilolCarvedilol40suppressed
Metformin HclMetformin Hcl3816
Potassium ChloridePotassium Chloride3711
Albuterol Sulfate HfaAlbuterol Sulfate3417
AtenololAtenolol33suppressed
Pantoprazole SodiumPantoprazole Sodium32suppressed
EstradiolEstradiol3011
Tamsulosin HclTamsulosin Hcl29suppressed
AlvescoCiclesonide2611
Duloxetine HclDuloxetine Hcl25suppressed
SpironolactoneSpironolactone24suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf2322
Insulin Glargine-YfgnInsulin Glargine-Yfgn22suppressed
FurosemideFurosemide20suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen20suppressed
AllopurinolAllopurinol19suppressed
MirtazapineMirtazapine19suppressed
Escitalopram OxalateEscitalopram Oxalate18suppressed
JardianceEmpagliflozin18suppressed
Morphine Sulfate ErMorphine Sulfate18suppressed
FamotidineFamotidine17suppressed
LorazepamLorazepam17suppressed
Montelukast SodiumMontelukast Sodium17suppressed
Oxybutynin Chloride ErOxybutynin Chloride16suppressed
Humalog Kwikpen U-100Insulin Lispro15suppressed
Pravastatin SodiumPravastatin Sodium15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1513
Fluoxetine HclFluoxetine Hcl14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl14suppressed
Tramadol HclTramadol Hcl14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
Humulin N KwikpenInsulin Nph Human Isophane13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Clobetasol PropionateClobetasol Propionate12suppressed
Humulin NInsulin Nph Human Isophane12suppressed
IrbesartanIrbesartan12suppressed
Fluticasone PropionateFluticasone Propionate11suppressed
Glipizide ErGlipizide11suppressed
HumalogInsulin Lispro11suppressed
Spiriva RespimatTiotropium Bromide11suppressed
YuvafemEstradiol11suppressed

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