Healthcare provider profile · identity verified

Florence K. Tso, MD

Internal Medicine · OAKLAND, CA · NPI 1821176611

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 Calcium42976
FurosemideFurosemide27837
Amlodipine BesylateAmlodipine Besylate20741
Levothyroxine SodiumLevothyroxine Sodium16123
Potassium ChloridePotassium Chloride16028
GabapentinGabapentin14231
FamotidineFamotidine13930
Trazodone HclTrazodone Hcl11525
OmeprazoleOmeprazole11121
Metoprolol TartrateMetoprolol Tartrate10621
Warfarin SodiumWarfarin Sodium106suppressed
PradaxaDabigatran Etexilate Mesylate10413
CarvedilolCarvedilol9916
LisinoprilLisinopril9925
Hydralazine HclHydralazine Hcl9716
Metoprolol SuccinateMetoprolol Succinate9522
JardianceEmpagliflozin9115
LevetiracetamLevetiracetam91suppressed
Duloxetine HclDuloxetine Hcl8113
Tamsulosin HclTamsulosin Hcl7522
LactuloseLactulose7414
MirtazapineMirtazapine7217
Chlorhexidine GluconateChlorhexidine Gluconate7023
Humulin RInsulin Regular, Human6117
EntrestoSacubitril/Valsartan60suppressed
Buspirone HclBuspirone Hcl58suppressed
Donepezil HclDonepezil Hcl56suppressed
Alendronate SodiumAlendronate Sodium5514
RisperidoneRisperidone55suppressed
Oseltamivir PhosphateOseltamivir Phosphate5248
Pantoprazole SodiumPantoprazole Sodium5117
Sertraline HclSertraline Hcl51suppressed
Metformin Hcl ErMetformin Hcl4911
Albuterol Sulfate HfaAlbuterol Sulfate4426
Humulin NInsulin Nph Human Isophane43suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate42suppressed
Oxycodone HclOxycodone Hcl4219
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate41suppressed
AtenololAtenolol40suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn4012
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen40suppressed
AllopurinolAllopurinol3911
Fluticasone PropionateFluticasone Propionate3911
Losartan PotassiumLosartan Potassium3813
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat37suppressed
PermethrinPermethrin3620
SpironolactoneSpironolactone35suppressed
AlvescoCiclesonide34suppressed
EliquisApixaban34suppressed
Fluoxetine HclFluoxetine Hcl34suppressed
Terazosin HclTerazosin Hcl34suppressed
ClopidogrelClopidogrel Bisulfate33suppressed
FinasterideFinasteride33suppressed
GlycopyrrolateGlycopyrrolate33suppressed
Morphine Sulfate ErMorphine Sulfate33suppressed
XareltoRivaroxaban32suppressed
Montelukast SodiumMontelukast Sodium31suppressed
Valproic AcidValproic Acid (As Sodium Salt)29suppressed
BaclofenBaclofen28suppressed
Venlafaxine Hcl ErVenlafaxine Hcl28suppressed
Heparin SodiumHeparin Sodium,porcine27suppressed
Triamcinolone AcetonideTriamcinolone Acetonide27suppressed
Brimonidine TartrateBrimonidine Tartrate26suppressed
Clobetasol PropionateClobetasol Propionate26suppressed
OlanzapineOlanzapine26suppressed
AcyclovirAcyclovir25suppressed
LacosamideLacosamide24suppressed
LatanoprostLatanoprost24suppressed
Oxybutynin Chloride ErOxybutynin Chloride24suppressed
BuprenorphineBuprenorphine23suppressed
Memantine HclMemantine Hcl23suppressed
Metformin HclMetformin Hcl2312
Paroxetine HclParoxetine Hcl23suppressed
LovastatinLovastatin22suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen21suppressed
Rosuvastatin CalciumRosuvastatin Calcium21suppressed
Wixela InhubFluticasone Propion/Salmeterol20suppressed
CephalexinCephalexin1915
Isosorbide DinitrateIsosorbide Dinitrate19suppressed
Quetiapine Fumarate ErQuetiapine Fumarate19suppressed
Advair HfaFluticasone Propion/Salmeterol18suppressed
PrednisonePrednisone18suppressed
Clonidine HclClonidine Hcl17suppressed
MupirocinMupirocin17suppressed
Tizanidine HclTizanidine Hcl16suppressed
LokelmaSodium Zirconium Cyclosilicate15suppressed
SantylCollagenase Clostridium Hist.15suppressed
SimvastatinSimvastatin15suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Citalopram HbrCitalopram Hydrobromide13suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1312
TorsemideTorsemide13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
HydrocortisoneHydrocortisone12suppressed
Labetalol HclLabetalol Hcl12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
MinoxidilMinoxidil12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
Cefpodoxime ProxetilCefpodoxime Proxetil11suppressed
CequaCyclosporine11suppressed
Clomipramine HclClomipramine Hcl11suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed

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