Healthcare provider profile · identity verified

Stephanie Chau

Internal Medicine · OAKLAND, CA · NPI 1700152030

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 Calcium26897
Amlodipine BesylateAmlodipine Besylate20370
HydrochlorothiazideHydrochlorothiazide11841
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11022
Losartan PotassiumLosartan Potassium10539
Levothyroxine SodiumLevothyroxine Sodium8829
LisinoprilLisinopril8834
Albuterol Sulfate HfaAlbuterol Sulfate8547
Fluticasone PropionateFluticasone Propionate7026
GabapentinGabapentin6130
Metoprolol TartrateMetoprolol Tartrate6019
Tamsulosin HclTamsulosin Hcl6020
AtenololAtenolol5918
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5722
FurosemideFurosemide5624
FamotidineFamotidine5022
Alendronate SodiumAlendronate Sodium4618
Metformin HclMetformin Hcl4314
Terazosin HclTerazosin Hcl4112
IbuprofenIbuprofen3813
AlvescoCiclesonide3623
Trazodone HclTrazodone Hcl3614
SimvastatinSimvastatin3511
OmeprazoleOmeprazole3414
Pantoprazole SodiumPantoprazole Sodium3114
AllopurinolAllopurinol3011
Sumatriptan SuccinateSumatriptan Succinate30suppressed
MirtazapineMirtazapine29suppressed
SpironolactoneSpironolactone2911
Azelastine HclAzelastine Hcl2811
GlipizideGlipizide2811
JardianceEmpagliflozin27suppressed
Donepezil HclDonepezil Hcl26suppressed
Spiriva RespimatTiotropium Bromide25suppressed
Escitalopram OxalateEscitalopram Oxalate24suppressed
Hydralazine HclHydralazine Hcl24suppressed
LovastatinLovastatin24suppressed
Metformin Hcl ErMetformin Hcl24suppressed
MeloxicamMeloxicam23suppressed
PrednisonePrednisone2319
CefadroxilCefadroxil2119
DiazepamDiazepam20suppressed
FinasterideFinasteride20suppressed
HydrocortisoneHydrocortisone2011
Metoprolol SuccinateMetoprolol Succinate20suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1919
Pravastatin SodiumPravastatin Sodium19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1916
Wixela InhubFluticasone Propion/Salmeterol19suppressed
CarvedilolCarvedilol18suppressed
ClonazepamClonazepam18suppressed
Fluoxetine HclFluoxetine Hcl18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
Potassium ChloridePotassium Chloride18suppressed
Bupropion XlBupropion Hcl17suppressed
Rosuvastatin CalciumRosuvastatin Calcium17suppressed
ColchicineColchicine16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
Citalopram HbrCitalopram Hydrobromide15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Tizanidine HclTizanidine Hcl15suppressed
LorazepamLorazepam14suppressed
Montelukast SodiumMontelukast Sodium14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1313
FluocinonideFluocinonide13suppressed
Humulin NInsulin Nph Human Isophane13suppressed
AcyclovirAcyclovir12suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1212
AlprazolamAlprazolam12suppressed
ChlorthalidoneChlorthalidone12suppressed
Duloxetine HclDuloxetine Hcl12suppressed
NaproxenNaproxen12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen12suppressed
PaxlovidNirmatrelvir/Ritonavir1212
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml12suppressed
Buspirone HclBuspirone Hcl11suppressed
Oxycodone HclOxycodone 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