Healthcare provider profile · identity verified

Michael Eric Janssen, MD

Internal Medicine · SEATTLE, WA · NPI 1194804161

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 Calcium754211
Amlodipine BesylateAmlodipine Besylate28580
LisinoprilLisinopril24965
Losartan PotassiumLosartan Potassium23770
Levothyroxine SodiumLevothyroxine Sodium18049
HydrochlorothiazideHydrochlorothiazide16950
Metoprolol SuccinateMetoprolol Succinate16747
OmeprazoleOmeprazole15746
GabapentinGabapentin14345
Tamsulosin HclTamsulosin Hcl14340
Metformin Hcl ErMetformin Hcl12336
Trazodone HclTrazodone Hcl10431
Rosuvastatin CalciumRosuvastatin Calcium10329
EliquisApixaban8725
Alendronate SodiumAlendronate Sodium8323
Fluticasone PropionateFluticasone Propionate8131
Metformin HclMetformin Hcl7221
Sertraline HclSertraline Hcl6825
Bupropion XlBupropion Hcl6517
Escitalopram OxalateEscitalopram Oxalate6417
FurosemideFurosemide6215
AllopurinolAllopurinol5915
Fluoxetine HclFluoxetine Hcl5616
SimvastatinSimvastatin5518
Triamcinolone AcetonideTriamcinolone Acetonide5426
Duloxetine HclDuloxetine Hcl5321
GlipizideGlipizide5212
JardianceEmpagliflozin4812
CarvedilolCarvedilol4613
OzempicSemaglutide43suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4225
Tizanidine HclTizanidine Hcl4114
Glipizide ErGlipizide40suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4012
CelecoxibCelecoxib3814
FamotidineFamotidine3812
Pravastatin SodiumPravastatin Sodium3812
ValsartanValsartan37suppressed
Pantoprazole SodiumPantoprazole Sodium35suppressed
ClopidogrelClopidogrel Bisulfate3411
Fluticasone-SalmeterolFluticasone Propion/Salmeterol31suppressed
ChlorthalidoneChlorthalidone30suppressed
MyrbetriqMirabegron3012
Potassium ChloridePotassium Chloride30suppressed
Bupropion Hcl SrBupropion Hcl28suppressed
SynthroidLevothyroxine Sodium28suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide27suppressed
MirtazapineMirtazapine27suppressed
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
Arnuity ElliptaFluticasone Furoate25suppressed
FinasterideFinasteride25suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen24suppressed
Buspirone HclBuspirone Hcl22suppressed
Enalapril MaleateEnalapril Maleate22suppressed
RybelsusSemaglutide22suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
ColchicineColchicine20suppressed
IrbesartanIrbesartan20suppressed
Terazosin HclTerazosin Hcl20suppressed
Doxazosin MesylateDoxazosin Mesylate19suppressed
Felodipine ErFelodipine19suppressed
Metoprolol TartrateMetoprolol Tartrate19suppressed
Nortriptyline HclNortriptyline Hcl19suppressed
TelmisartanTelmisartan19suppressed
AtenololAtenolol18suppressed
DiazepamDiazepam18suppressed
EzetimibeEzetimibe18suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
Propranolol HclPropranolol Hcl18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
RamiprilRamipril18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
ValacyclovirValacyclovir Hcl17suppressed
Venlafaxine HclVenlafaxine Hcl17suppressed
BaclofenBaclofen16suppressed
Ipratropium BromideIpratropium Bromide16suppressed
MeloxicamMeloxicam16suppressed
Hydralazine HclHydralazine Hcl15suppressed
Zolpidem TartrateZolpidem Tartrate1512
AcyclovirAcyclovir14suppressed
Morphine Sulfate ErMorphine Sulfate14suppressed
Ondansetron OdtOndansetron14suppressed
AripiprazoleAripiprazole13suppressed
Chlorhexidine GluconateChlorhexidine Gluconate13suppressed
GlimepirideGlimepiride13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
SucralfateSucralfate13suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid13suppressed
TrulicityDulaglutide13suppressed
Alfuzosin Hcl ErAlfuzosin Hcl12suppressed
LovastatinLovastatin12suppressed
MounjaroTirzepatide12suppressed
MupirocinMupirocin12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
KetoconazoleKetoconazole11suppressed
Naltrexone HclNaltrexone Hcl11suppressed
TopiramateTopiramate11suppressed
Tramadol HclTramadol Hcl11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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