Healthcare provider profile · identity verified

Sangjun Byeon, MD

Allopathic & Osteopathic Physicians|Internal Medicine · ROWLAND HEIGHTS, CA · NPI 1659574945

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 Sangjun Byeon, MD received $610.57 in general payments during 2025 across 25 reported records.

AstraZeneca Pharmaceuticals LP accounted for 53.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

ABBVIE 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 CREON as an associated drug or biological on 91561 records involving 20616 distinct recipient NPIs. Public Medicare Part D data also shows 62 claims for Creon 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 97 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 31 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 31 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

$610.57

25 reported records · 8 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $328.9753.9%132025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $101.8316.7%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $48.978.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $39.736.5%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $28.694.7%12025
Amgen Inc. Unresolved — no canonical attribution shown $22.363.7%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.743.4%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $19.283.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$610.5725

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
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $167.31 6 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $145.84 6 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $101.83 4 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $69.71 3 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $39.73 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $28.69 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $28.69 1 2025
Source payment records
Repatha
Normalized: repatha
Biological Amgen Inc. $22.36 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $19.28 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $15.82 1 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $14.73 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
CREON
creon
2025 Creon 2024 62 exact normalized Medicare Part D
FARXIGA
farxiga
2025 Farxiga 2024 97 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 31
Beneficiary count suppressed
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 CREON
open payments reported associated product
CMS Open Payments — General Payments
91561 supporting records · 20616 recipient NPIs · example record 1201352608
Creon · 2024
Exact normalized brand match · 1 Part D row
62 24
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
97 23
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
31 suppressed by CMS
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
31 suppressed by CMS

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 Calcium540162
Metformin HclMetformin Hcl382100
Amlodipine BesylateAmlodipine Besylate35895
Losartan PotassiumLosartan Potassium34997
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25162
SimvastatinSimvastatin20353
Tamsulosin HclTamsulosin Hcl18248
VascepaIcosapent Ethyl13625
Rosuvastatin CalciumRosuvastatin Calcium10530
TemazepamTemazepam10236
FarxigaDapagliflozin Propanediol9723
Levothyroxine SodiumLevothyroxine Sodium9728
JanuviaSitagliptin Phosphate9114
Montelukast SodiumMontelukast Sodium8842
GlipizideGlipizide8619
CelecoxibCelecoxib8546
Donepezil HclDonepezil Hcl8422
ClopidogrelClopidogrel Bisulfate8121
OmeprazoleOmeprazole7830
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters7724
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride6632
CreonLipase/Protease/Amylase6224
Triamcinolone AcetonideTriamcinolone Acetonide6137
AzithromycinAzithromycin5954
AtenololAtenolol5813
FinasterideFinasteride5519
Metformin Hcl ErMetformin Hcl5515
MeloxicamMeloxicam5223
GabapentinGabapentin5012
Metoprolol SuccinateMetoprolol Succinate5018
Icosapent EthylIcosapent Ethyl4620
Fluticasone PropionateFluticasone Propionate4015
Pantoprazole SodiumPantoprazole Sodium3714
Alendronate SodiumAlendronate Sodium35suppressed
LevofloxacinLevofloxacin3531
LovastatinLovastatin33suppressed
Sildenafil CitrateSildenafil Citrate32suppressed
JardianceEmpagliflozin31suppressed
Sertraline HclSertraline Hcl29suppressed
Pravastatin SodiumPravastatin Sodium28suppressed
PregabalinPregabalin28suppressed
FenofibrateFenofibrate,micronized27suppressed
GlimepirideGlimepiride27suppressed
KetoconazoleKetoconazole2714
MupirocinMupirocin2719
Isosorbide Mononitrate ErIsosorbide Mononitrate26suppressed
Olmesartan MedoxomilOlmesartan Medoxomil26suppressed
Alcohol SwabsAlcohol Antiseptic Pads24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Zolpidem TartrateZolpidem Tartrate23suppressed
HydrochlorothiazideHydrochlorothiazide22suppressed
AllopurinolAllopurinol21suppressed
LisinoprilLisinopril21suppressed
Memantine HclMemantine Hcl21suppressed
BaclofenBaclofen20suppressed
ClonazepamClonazepam20suppressed
Glipizide ErGlipizide20suppressed
Ciprofloxacin HclCiprofloxacin Hcl1918
Doxazosin MesylateDoxazosin Mesylate19suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide19suppressed
Trazodone HclTrazodone Hcl19suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide18suppressed
EliquisApixaban16suppressed
Oxybutynin ChlorideOxybutynin Chloride16suppressed
CarvedilolCarvedilol15suppressed
Diclofenac SodiumDiclofenac Sodium15suppressed
FamotidineFamotidine15suppressed
Metoclopramide HclMetoclopramide Hcl1513
Ranolazine ErRanolazine15suppressed
ValsartanValsartan15suppressed
PrednisonePrednisone1412
AcyclovirAcyclovir13suppressed
CiclopiroxCiclopirox13suppressed
DapagliflozinDapagliflozin Propanediol13suppressed
DutasterideDutasteride13suppressed
LidocaineLidocaine13suppressed
Labetalol HclLabetalol Hcl12suppressed
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha12suppressed
Procto-Med HcHydrocortisone12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
DiazepamDiazepam11suppressed
EzetimibeEzetimibe11suppressed
Glipizide-MetforminGlipizide/Metformin Hcl11suppressed
JanumetSitagliptin Phos/Metformin Hcl11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed
PropylthiouracilPropylthiouracil11suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
TradjentaLinagliptin11suppressed

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 $610.57 · 25 records AstraZeneca Pharmaceuticals LP AIRSUPRA, AREXVY, BREZTRI, CREON, Cologuard Collection Kit, FARXIGA, JARDIANCE, LINZESS, Repatha, SHINGRIX, ZENPEP 4
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