Healthcare provider profile · identity verified

Krystal Leong

Internal Medicine · OAKLAND, CA · NPI 1689949760

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
Amlodipine BesylateAmlodipine Besylate19168
Atorvastatin CalciumAtorvastatin Calcium18675
GabapentinGabapentin12043
Losartan PotassiumLosartan Potassium11746
HydrochlorothiazideHydrochlorothiazide10735
LisinoprilLisinopril10532
Albuterol Sulfate HfaAlbuterol Sulfate9452
Levothyroxine SodiumLevothyroxine Sodium9229
Fluticasone PropionateFluticasone Propionate6623
Alendronate SodiumAlendronate Sodium6224
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5919
Metoprolol TartrateMetoprolol Tartrate5920
Tamsulosin HclTamsulosin Hcl5723
Metformin Hcl ErMetformin Hcl5619
AtenololAtenolol5418
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5319
Trazodone HclTrazodone Hcl4015
SimvastatinSimvastatin3913
IbuprofenIbuprofen3815
FamotidineFamotidine3715
Pantoprazole SodiumPantoprazole Sodium3212
Metoprolol SuccinateMetoprolol Succinate3112
PaxlovidNirmatrelvir/Ritonavir3131
Triamcinolone AcetonideTriamcinolone Acetonide3119
LovastatinLovastatin30suppressed
Duloxetine HclDuloxetine Hcl29suppressed
Metformin HclMetformin Hcl29suppressed
AllopurinolAllopurinol2811
AlvescoCiclesonide2814
OmeprazoleOmeprazole2815
Hydralazine HclHydralazine Hcl24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide23suppressed
FluocinonideFluocinonide20suppressed
LorazepamLorazepam20suppressed
Wixela InhubFluticasone Propion/Salmeterol20suppressed
MeloxicamMeloxicam19suppressed
Nortriptyline HclNortriptyline Hcl19suppressed
Ondansetron OdtOndansetron19suppressed
Zolpidem TartrateZolpidem Tartrate1911
Acetaminophen-CodeineAcetaminophen With Codeine18suppressed
Sertraline HclSertraline Hcl18suppressed
CarvedilolCarvedilol17suppressed
ClopidogrelClopidogrel Bisulfate17suppressed
FurosemideFurosemide17suppressed
Tizanidine HclTizanidine Hcl17suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1616
Citalopram HbrCitalopram Hydrobromide16suppressed
Fluoxetine HclFluoxetine Hcl16suppressed
MetronidazoleMetronidazole16suppressed
AcyclovirAcyclovir15suppressed
Propranolol HclPropranolol Hcl15suppressed
Spiriva RespimatTiotropium Bromide15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
BreynaBudesonide/Formoterol Fumarate14suppressed
Bupropion XlBupropion Hcl14suppressed
FinasterideFinasteride14suppressed
Clonidine HclClonidine Hcl13suppressed
HydrocortisoneHydrocortisone13suppressed
Rosuvastatin CalciumRosuvastatin Calcium13suppressed
CefadroxilCefadroxil1111
Methadone HclMethadone 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