Healthcare provider profile · identity verified

Aileen S Tan, MD

Internal Medicine · LAS VEGAS, NV · NPI 1720166234

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 Calcium697239
Levothyroxine SodiumLevothyroxine Sodium369116
Amlodipine BesylateAmlodipine Besylate365123
Losartan PotassiumLosartan Potassium358123
LisinoprilLisinopril338109
Metoprolol SuccinateMetoprolol Succinate23174
Rosuvastatin CalciumRosuvastatin Calcium22488
GabapentinGabapentin22182
Hydralazine HclHydralazine Hcl21474
OmeprazoleOmeprazole20470
Pantoprazole SodiumPantoprazole Sodium19275
Metoprolol TartrateMetoprolol Tartrate18368
SimvastatinSimvastatin17054
Metformin HclMetformin Hcl16362
Albuterol Sulfate HfaAlbuterol Sulfate15652
Alendronate SodiumAlendronate Sodium13442
GlimepirideGlimepiride11843
EliquisApixaban11326
Metformin Hcl ErMetformin Hcl10442
HydrochlorothiazideHydrochlorothiazide9935
Trazodone HclTrazodone Hcl9535
Montelukast SodiumMontelukast Sodium8831
Hydroxyzine HclHydroxyzine Hcl8133
AllopurinolAllopurinol7824
AtenololAtenolol7824
PrednisonePrednisone7562
CarvedilolCarvedilol7326
FurosemideFurosemide7336
FamotidineFamotidine6922
BaclofenBaclofen6728
Tizanidine HclTizanidine Hcl6732
Doxycycline MonohydrateDoxycycline Monohydrate6349
Duloxetine HclDuloxetine Hcl6321
Pravastatin SodiumPravastatin Sodium6121
Sertraline HclSertraline Hcl6125
Fluticasone PropionateFluticasone Propionate6030
ClopidogrelClopidogrel Bisulfate5722
Glipizide ErGlipizide5420
Oxybutynin ChlorideOxybutynin Chloride5419
Tamsulosin HclTamsulosin Hcl5421
Citalopram HbrCitalopram Hydrobromide5014
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4915
Buspirone HclBuspirone Hcl4718
LovastatinLovastatin4713
Meclizine HclMeclizine Hcl4220
MeloxicamMeloxicam4015
GlipizideGlipizide3912
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3912
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3716
Oxybutynin Chloride ErOxybutynin Chloride3613
Potassium ChloridePotassium Chloride3415
FenofibrateFenofibrate3313
IbuprofenIbuprofen3315
XareltoRivaroxaban32suppressed
EzetimibeEzetimibe3114
AzithromycinAzithromycin3022
Ciprofloxacin HclCiprofloxacin Hcl3026
Ropinirole HclRopinirole Hcl3012
Fluoxetine HclFluoxetine Hcl29suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2925
Warfarin SodiumWarfarin Sodium29suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2826
NystatinNystatin2813
Donepezil HclDonepezil Hcl2612
Enalapril MaleateEnalapril Maleate25suppressed
AcyclovirAcyclovir21suppressed
ChlorthalidoneChlorthalidone21suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl20suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
Ondansetron HclOndansetron Hcl1913
SymbicortBudesonide/Formoterol Fumarate18suppressed
Terazosin HclTerazosin Hcl18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
FinasterideFinasteride17suppressed
JardianceEmpagliflozin17suppressed
Nifedipine ErNifedipine17suppressed
Ondansetron OdtOndansetron17suppressed
SpironolactoneSpironolactone17suppressed
Verapamil ErVerapamil Hcl16suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)15suppressed
Diltiazem HclDiltiazem Hcl15suppressed
LevetiracetamLevetiracetam15suppressed
Nortriptyline HclNortriptyline Hcl15suppressed
Propranolol HclPropranolol Hcl15suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide15suppressed
Ipratropium BromideIpratropium Bromide14suppressed
Memantine HclMemantine Hcl14suppressed
MounjaroTirzepatide14suppressed
Quetiapine FumarateQuetiapine Fumarate14suppressed
Tramadol HclTramadol Hcl14suppressed
Advair HfaFluticasone Propion/Salmeterol13suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
Breo ElliptaFluticasone/Vilanterol12suppressed
Diclofenac SodiumDiclofenac Sodium12suppressed
Pioglitazone HclPioglitazone Hcl12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
PregabalinPregabalin12suppressed
Spiriva RespimatTiotropium Bromide12suppressed
Benazepril HclBenazepril Hcl11suppressed
Bupropion HclBupropion Hcl11suppressed
FluconazoleFluconazole11suppressed
HydrocortisoneHydrocortisone11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed

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