Healthcare provider profile · identity verified

Andrew T Kwan, MD

Family Practice · TOPEKA, KS · NPI 1497288146

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 Calcium34093
Levothyroxine SodiumLevothyroxine Sodium25557
Amlodipine BesylateAmlodipine Besylate21361
GabapentinGabapentin20647
Pantoprazole SodiumPantoprazole Sodium19651
Trazodone HclTrazodone Hcl18239
Escitalopram OxalateEscitalopram Oxalate18045
Tamsulosin HclTamsulosin Hcl17252
Albuterol Sulfate HfaAlbuterol Sulfate16144
Oxycodone HclOxycodone Hcl14727
LisinoprilLisinopril13435
Losartan PotassiumLosartan Potassium13140
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen13029
Metformin HclMetformin Hcl12532
Donepezil HclDonepezil Hcl12024
OmeprazoleOmeprazole12034
AripiprazoleAripiprazole11820
Potassium ChloridePotassium Chloride11627
OzempicSemaglutide11223
MounjaroTirzepatide10824
Metoprolol SuccinateMetoprolol Succinate9430
Tizanidine HclTizanidine Hcl9224
HydrochlorothiazideHydrochlorothiazide9022
Memantine HclMemantine Hcl9018
FurosemideFurosemide8826
JardianceEmpagliflozin8418
SimvastatinSimvastatin8318
MeloxicamMeloxicam7833
Duloxetine HclDuloxetine Hcl7722
Rosuvastatin CalciumRosuvastatin Calcium7723
Trelegy ElliptaFluticasone/Umeclidin/Vilanter7617
PregabalinPregabalin7518
AllopurinolAllopurinol7416
CarvedilolCarvedilol7421
Alendronate SodiumAlendronate Sodium7327
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl70suppressed
Pioglitazone HclPioglitazone Hcl7017
PrednisonePrednisone6954
Montelukast SodiumMontelukast Sodium6719
Buspirone HclBuspirone Hcl6414
Tramadol HclTramadol Hcl6414
Cyclobenzaprine HclCyclobenzaprine Hcl6025
Fluticasone PropionateFluticasone Propionate5823
Hydroxyzine HclHydroxyzine Hcl5813
EliquisApixaban5611
Pramipexole DihydrochloridePramipexole Di-Hcl55suppressed
TopiramateTopiramate5511
FamotidineFamotidine5014
Zolpidem TartrateZolpidem Tartrate5012
AzithromycinAzithromycin4930
Quetiapine FumarateQuetiapine Fumarate46suppressed
AtenololAtenolol45suppressed
Hydralazine HclHydralazine Hcl44suppressed
LorazepamLorazepam4413
Diclofenac SodiumDiclofenac Sodium4315
Ondansetron OdtOndansetron4317
Atomoxetine HclAtomoxetine Hcl42suppressed
Solifenacin SuccinateSolifenacin Succinate42suppressed
ClonazepamClonazepam41suppressed
GlimepirideGlimepiride39suppressed
Ropinirole HclRopinirole Hcl39suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate38suppressed
Metformin Hcl ErMetformin Hcl38suppressed
Bupropion XlBupropion Hcl3711
MirtazapineMirtazapine37suppressed
Sertraline HclSertraline Hcl37suppressed
Varenicline TartrateVarenicline Tartrate37suppressed
Venlafaxine Hcl ErVenlafaxine Hcl37suppressed
AlprazolamAlprazolam36suppressed
Pravastatin SodiumPravastatin Sodium35suppressed
CephalexinCephalexin3423
ClopidogrelClopidogrel Bisulfate34suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide33suppressed
Terbinafine HclTerbinafine Hcl3320
LevetiracetamLevetiracetam32suppressed
FinasterideFinasteride29suppressed
KetoconazoleKetoconazole2915
ModafinilModafinil29suppressed
Fluoxetine HclFluoxetine Hcl27suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide27suppressed
EzetimibeEzetimibe25suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol25suppressed
NystatinNystatin25suppressed
Warfarin SodiumWarfarin Sodium25suppressed
Carbidopa-LevodopaCarbidopa/Levodopa24suppressed
Clobetasol PropionateClobetasol Propionate2413
FarxigaDapagliflozin Propanediol24suppressed
Metoprolol TartrateMetoprolol Tartrate24suppressed
Oxybutynin ChlorideOxybutynin Chloride24suppressed
Clonidine HclClonidine Hcl23suppressed
LovastatinLovastatin23suppressed
PrimidonePrimidone22suppressed
ValacyclovirValacyclovir Hcl22suppressed
DutasterideDutasteride21suppressed
LamotrigineLamotrigine21suppressed
Sumatriptan SuccinateSumatriptan Succinate21suppressed
Amitriptyline HclAmitriptyline Hcl20suppressed
FenofibrateFenofibrate Nanocrystallized20suppressed
Promethazine HclPromethazine Hcl20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2018
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide20suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters19suppressed
SuboxoneBuprenorphine Hcl/Naloxone Hcl19suppressed
SynthroidLevothyroxine Sodium19suppressed
Benztropine MesylateBenztropine Mesylate18suppressed
CiclopiroxCiclopirox18suppressed
MupirocinMupirocin18suppressed
Ranolazine ErRanolazine18suppressed
Ciprofloxacin HclCiprofloxacin Hcl1714
DiazepamDiazepam17suppressed
Doxepin HclDoxepin Hcl17suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium17suppressed
Ipratropium BromideIpratropium Bromide17suppressed
NitroglycerinNitroglycerin17suppressed
Paroxetine HclParoxetine Hcl17suppressed
Propranolol HclPropranolol Hcl17suppressed
SpironolactoneSpironolactone17suppressed
TorsemideTorsemide17suppressed
BreynaBudesonide/Formoterol Fumarate16suppressed
Bupropion HclBupropion Hcl16suppressed
ErythromycinErythromycin Base16suppressed
LinzessLinaclotide16suppressed
MyrbetriqMirabegron16suppressed
SucralfateSucralfate16suppressed
Advair HfaFluticasone Propion/Salmeterol15suppressed
Ventolin HfaAlbuterol Sulfate15suppressed
BaclofenBaclofen14suppressed
Breo ElliptaFluticasone/Vilanterol14suppressed
Prazosin HclPrazosin Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1311
IrbesartanIrbesartan13suppressed
Megestrol AcetateMegestrol Acetate13suppressed
Naltrexone HclNaltrexone Hcl13suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst13suppressed
Quetiapine Fumarate ErQuetiapine Fumarate13suppressed
Tresiba Flextouch U-200Insulin Degludec13suppressed
WegovySemaglutide13suppressed
XifaxanRifaximin13suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate12suppressed
NaproxenNaproxen12suppressed
RisperidoneRisperidone12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1211
Aspirin-Dipyridamole ErAspirin/Dipyridamole11suppressed
Doxycycline HyclateDoxycycline Hyclate11suppressed
Droplet Pen NeedlePen Needle, Diabetic11suppressed
FluconazoleFluconazole11suppressed
GlipizideGlipizide11suppressed
Methenamine HippurateMethenamine Hippurate11suppressed

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