Healthcare provider profile · identity verified

Andy Christopher Yen, MD

Internal Medicine · MARYSVILLE, WA · NPI 1043879133

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 Calcium389149
Losartan PotassiumLosartan Potassium296106
Amlodipine BesylateAmlodipine Besylate26994
Levothyroxine SodiumLevothyroxine Sodium24680
LisinoprilLisinopril21985
Metoprolol SuccinateMetoprolol Succinate15458
OmeprazoleOmeprazole14861
Rosuvastatin CalciumRosuvastatin Calcium14056
Albuterol Sulfate HfaAlbuterol Sulfate12149
Tamsulosin HclTamsulosin Hcl11242
Trazodone HclTrazodone Hcl9229
GabapentinGabapentin9034
HydrochlorothiazideHydrochlorothiazide8836
Pantoprazole SodiumPantoprazole Sodium8727
Sertraline HclSertraline Hcl7925
FurosemideFurosemide7639
Metformin HclMetformin Hcl7525
Tizanidine HclTizanidine Hcl7529
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7419
Metformin Hcl ErMetformin Hcl7328
Oxycodone HclOxycodone Hcl6817
Alendronate SodiumAlendronate Sodium6620
Citalopram HbrCitalopram Hydrobromide6519
AlprazolamAlprazolam5615
FamotidineFamotidine5419
MethocarbamolMethocarbamol54suppressed
Potassium ChloridePotassium Chloride5424
AtenololAtenolol5120
PregabalinPregabalin5012
Triamcinolone AcetonideTriamcinolone Acetonide5033
CarvedilolCarvedilol4912
AllopurinolAllopurinol4817
OzempicSemaglutide4711
ChlorthalidoneChlorthalidone4621
Escitalopram OxalateEscitalopram Oxalate4614
Fluticasone PropionateFluticasone Propionate4631
SimvastatinSimvastatin4621
Cyclobenzaprine HclCyclobenzaprine Hcl4520
Fluticasone-SalmeterolFluticasone Propion/Salmeterol4213
Quetiapine FumarateQuetiapine Fumarate4211
Zolpidem TartrateZolpidem Tartrate41suppressed
Duloxetine HclDuloxetine Hcl4018
Tramadol HclTramadol Hcl3714
MirtazapineMirtazapine36suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen35suppressed
EliquisApixaban3311
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3314
ClopidogrelClopidogrel Bisulfate32suppressed
Ipratropium BromideIpratropium Bromide3219
Warfarin SodiumWarfarin Sodium32suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
JardianceEmpagliflozin3114
Pravastatin SodiumPravastatin Sodium3014
Hydroxyzine HclHydroxyzine Hcl2816
Buspirone HclBuspirone Hcl27suppressed
Diclofenac SodiumDiclofenac Sodium2716
Bupropion XlBupropion Hcl2612
Montelukast SodiumMontelukast Sodium26suppressed
ValsartanValsartan2613
FinasterideFinasteride25suppressed
SpironolactoneSpironolactone2512
Paroxetine HclParoxetine Hcl24suppressed
PrednisonePrednisone2420
ClonazepamClonazepam23suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
RybelsusSemaglutide22suppressed
Sumatriptan SuccinateSumatriptan Succinate22suppressed
DiazepamDiazepam20suppressed
Glipizide ErGlipizide19suppressed
MeloxicamMeloxicam19suppressed
TopiramateTopiramate19suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
BaclofenBaclofen18suppressed
Ondansetron OdtOndansetron1813
Ropinirole HclRopinirole Hcl18suppressed
Dicyclomine HclDicyclomine Hcl17suppressed
Propranolol HclPropranolol Hcl17suppressed
Amitriptyline HclAmitriptyline Hcl16suppressed
ColchicineColchicine16suppressed
Divalproex SodiumDivalproex Sodium16suppressed
KetoconazoleKetoconazole16suppressed
MounjaroTirzepatide16suppressed
Breo ElliptaFluticasone/Vilanterol15suppressed
Bupropion Hcl SrBupropion Hcl15suppressed
Clonidine HclClonidine Hcl15suppressed
Hydralazine HclHydralazine Hcl15suppressed
Hydromorphone HclHydromorphone Hcl15suppressed
NaproxenNaproxen15suppressed
Promethazine HclPromethazine Hcl15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Cefpodoxime ProxetilCefpodoxime Proxetil1411
IrbesartanIrbesartan14suppressed
Ondansetron HclOndansetron Hcl14suppressed
TelmisartanTelmisartan14suppressed
CelecoxibCelecoxib13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
LovastatinLovastatin13suppressed
NitroglycerinNitroglycerin13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium12suppressed
Guanfacine HclGuanfacine Hcl12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
ProzacFluoxetine Hcl12suppressed
RisperidoneRisperidone12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed
XareltoRivaroxaban12suppressed
AcyclovirAcyclovir11suppressed
Benazepril HclBenazepril Hcl11suppressed
FluconazoleFluconazole11suppressed
GlipizideGlipizide11suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro11suppressed
Qvar RedihalerBeclomethasone Dipropionate11suppressed
SynthroidLevothyroxine Sodium11suppressed
ValacyclovirValacyclovir Hcl11suppressed

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