Healthcare provider profile · identity verified

Nancy Chung, MD

Family Practice · COLTON, CA · NPI 1275053688

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 Calcium17758
Metformin HclMetformin Hcl13944
TrulicityDulaglutide10318
GabapentinGabapentin9124
JardianceEmpagliflozin8017
LisinoprilLisinopril6622
OzempicSemaglutide6415
Losartan PotassiumLosartan Potassium6324
OmeprazoleOmeprazole6217
Amlodipine BesylateAmlodipine Besylate5118
CarvedilolCarvedilol4813
Nifedipine ErNifedipine4817
FurosemideFurosemide4615
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4512
FamotidineFamotidine4416
Pantoprazole SodiumPantoprazole Sodium4312
Trazodone HclTrazodone Hcl42suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog4012
Duloxetine HclDuloxetine Hcl40suppressed
Fluticasone PropionateFluticasone Propionate39suppressed
Amitriptyline HclAmitriptyline Hcl38suppressed
Enalapril MaleateEnalapril Maleate3812
Albuterol Sulfate HfaAlbuterol Sulfate37suppressed
HydrochlorothiazideHydrochlorothiazide3711
InvokanaCanagliflozin34suppressed
Levothyroxine SodiumLevothyroxine Sodium3417
BaclofenBaclofen32suppressed
Metoprolol SuccinateMetoprolol Succinate3111
BreynaBudesonide/Formoterol Fumarate30suppressed
Citalopram HbrCitalopram Hydrobromide30suppressed
SimvastatinSimvastatin28suppressed
Tamsulosin HclTamsulosin Hcl28suppressed
Diclofenac SodiumDiclofenac Sodium2713
AllopurinolAllopurinol26suppressed
Oxybutynin ChlorideOxybutynin Chloride24suppressed
Alendronate SodiumAlendronate Sodium23suppressed
Bupropion XlBupropion Hcl23suppressed
HydrocortisoneHydrocortisone2313
Tramadol HclTramadol Hcl23suppressed
NaproxenNaproxen22suppressed
AlogliptinAlogliptin Benzoate21suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
EliquisApixaban18suppressed
GlipizideGlipizide18suppressed
Hydroxyzine HclHydroxyzine Hcl18suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro18suppressed
Potassium ChloridePotassium Chloride18suppressed
DapagliflozinDapagliflozin Propanediol17suppressed
Montelukast SodiumMontelukast Sodium17suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads15suppressed
FinasterideFinasteride15suppressed
Pravastatin SodiumPravastatin Sodium15suppressed
JanuviaSitagliptin Phosphate14suppressed
Metoprolol TartrateMetoprolol Tartrate14suppressed
SpironolactoneSpironolactone14suppressed
Comfort Ez Pen NeedlePen Needle, Diabetic13suppressed
IbuprofenIbuprofen13suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Sertraline HclSertraline Hcl12suppressed
Alcohol PadsAlcohol Antiseptic Pads11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Spiriva RespimatTiotropium Bromide11suppressed

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