Healthcare provider profile · identity verified

Chung The Bui, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · WESTMINSTER, CA · NPI 1427143072

Profile state: payments and partd 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

CMS Open Payments records show Chung The Bui, M.D. received $1,457.65 in general payments during 2025 across 22 reported records.

Lilly USA, LLC accounted for 24.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Prolia, Zenpep.

Aimmune Therapeutics, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ZENPEP as an associated drug or biological on 32144 records involving 12432 distinct recipient NPIs. Public Medicare Part D data also shows 59 claims for Zenpep by this doctor in 2024.

Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Prolia by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Farxiga by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 249 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 249 claims for Jardiance by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$1,457.65

22 reported records · 7 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Lilly USA, LLC Unresolved — no canonical attribution shown $355.9324.4%32025
Amgen Inc. Unresolved — no canonical attribution shown $295.2520.3%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $273.7418.8%32025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $253.6317.4%72025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $144.109.9%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $111.967.7%52025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.041.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,282.6521
Consulting Fee$175.001

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $353.68 7 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $253.63 7 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $175.00 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $144.10 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $134.24 1 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological AstraZeneca Pharmaceuticals LP $123.50 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $120.25 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $114.21 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $23.04 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $16.00 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
JARDIANCE
jardiance
2025 Jardiance 2024 249 exact normalized Medicare Part D
PROLIA
prolia
2025 Prolia 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
ZENPEP
zenpep
2025 Zenpep 2024 59 exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Aimmune Therapeutics, Inc.
Exact reporting entity; no affiliate inference
2025 ZENPEP
open payments reported associated product
CMS Open Payments — General Payments
32144 supporting records · 12432 recipient NPIs · example record 1249641927
Zenpep · 2024
Exact normalized brand match · 1 Part D row
59 15
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
74 18
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
249 56
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
249 56

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 Calcium516154
Losartan PotassiumLosartan Potassium334109
Amlodipine BesylateAmlodipine Besylate30699
Metoprolol SuccinateMetoprolol Succinate27989
JardianceEmpagliflozin24956
Metformin Hcl ErMetformin Hcl23777
Rosuvastatin CalciumRosuvastatin Calcium21662
GabapentinGabapentin20988
Tamsulosin HclTamsulosin Hcl20353
Olmesartan MedoxomilOlmesartan Medoxomil20067
Triamcinolone AcetonideTriamcinolone Acetonide14865
TradjentaLinagliptin12527
Metformin HclMetformin Hcl11531
VascepaIcosapent Ethyl10326
FamotidineFamotidine10041
Fluticasone PropionateFluticasone Propionate9732
LinzessLinaclotide9627
Alendronate SodiumAlendronate Sodium9530
FinasterideFinasteride8924
Diclofenac SodiumDiclofenac Sodium7735
FarxigaDapagliflozin Propanediol7418
Pantoprazole SodiumPantoprazole Sodium6932
CreonLipase/Protease/Amylase6420
Nebivolol HclNebivolol Hcl6419
CelecoxibCelecoxib5924
Pioglitazone HclPioglitazone Hcl5918
ZenpepLipase/Protease/Amylase5915
MirtazapineMirtazapine5420
DutasterideDutasteride5315
AzithromycinAzithromycin5135
Sildenafil CitrateSildenafil Citrate49suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4817
ClopidogrelClopidogrel Bisulfate4714
Montelukast SodiumMontelukast Sodium4612
AllopurinolAllopurinol4113
OmeprazoleOmeprazole4119
Alcohol Prep PadsAlcohol Antiseptic Pads3826
NaproxenNaproxen3723
LoperamideLoperamide Hcl3327
Procto-Med HcHydrocortisone3116
AmoxicillinAmoxicillin3022
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3026
BaclofenBaclofen3013
Cromolyn SodiumCromolyn Sodium3018
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters30suppressed
HydrochlorothiazideHydrochlorothiazide29suppressed
Meclizine HclMeclizine Hcl2717
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med26suppressed
Ventolin HfaAlbuterol Sulfate26suppressed
ColchicineColchicine25suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate24suppressed
Icosapent EthylIcosapent Ethyl2312
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride23suppressed
PrednisonePrednisone2320
PregabalinPregabalin23suppressed
Proctozone-HcHydrocortisone2311
RestasisCyclosporine23suppressed
Zolpidem TartrateZolpidem Tartrate2311
Breo ElliptaFluticasone/Vilanterol22suppressed
IbuprofenIbuprofen2216
CarvedilolCarvedilol21suppressed
Chlorhexidine GluconateChlorhexidine Gluconate21suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr20suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine2011
JanuviaSitagliptin Phosphate20suppressed
EntecavirEntecavir19suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip18suppressed
Dexlansoprazole DrDexlansoprazole18suppressed
Donepezil HclDonepezil Hcl17suppressed
AlprazolamAlprazolam16suppressed
CilostazolCilostazol16suppressed
Clonidine HclClonidine Hcl16suppressed
LovastatinLovastatin16suppressed
Megestrol AcetateMegestrol Acetate16suppressed
Bisoprolol FumarateBisoprolol Fumarate15suppressed
Ciprofloxacin HclCiprofloxacin Hcl1513
EzetimibeEzetimibe15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
FebuxostatFebuxostat14suppressed
GlimepirideGlimepiride14suppressed
IrbesartanIrbesartan14suppressed
Synjardy XrEmpagliflozin/Metformin Hcl14suppressed
CyclosporineCyclosporine13suppressed
HydrocortisoneHydrocortisone13suppressed
MethylprednisoloneMethylprednisolone13suppressed
Duloxetine HclDuloxetine Hcl12suppressed
EliquisApixaban12suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide12suppressed
ProliaDenosumab11suppressed
RybelsusSemaglutide11suppressed
Single Use SwabAlcohol Antiseptic Pads11suppressed
Tramadol HclTramadol Hcl11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed

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 $1,457.65 · 22 records Lilly USA, LLC AIRSUPRA, BREZTRI, EVENITY, JARDIANCE, Kerendia, MOUNJARO, PROLIA, TEZSPIRE, VOQUEZNA, ZENPEP 5
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