What is Eugene Byun's specialty?

Eugene Byun (NPI 1104812643) is a Medicare-billing provider whose primary specialty is Cardiology in Fullerton, CA.

Where does Eugene Byun practice?

Eugene Byun practices in Fullerton, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1104812643.

How much does Medicare pay Eugene Byun?

Eugene Byun (NPI 1104812643) received approximately $185K in total Medicare Part B payments, serving 1,303 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1104812643

Eugene ByunMD

CardiologyFullerton, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,234

Unique beneficiaries

—

Total services

3,154

Distinct HCPCS

Medicare payment

$162K

Peer benchmark

Total Medicare services vs. 1,869 Cardiology providers in CA — above median (cohort median 2,371).

PRESCRIBING · PART D · 2024

Total Rx claims

7,151

Beneficiaries

—

Total drug cost

$1.1M

Distinct drugs

Brand share

24.0%

Top prescribed drugs

Atorvastatin Calcium597 claims

Metoprolol Succinate428 claims

Furosemide385 claims

Apixaban360 claims

Amlodipine Besylate350 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Top paying entities

Food and Beverage$1K

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050168

Hospital

REFERRAL NETWORK

Where Eugene Byun's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 62 inbound referrers · 154 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST JUDE HOSPITAL INC	335	769
Victor Lee Pathology · Oceanside, CA	330	847
Ramesh Rathod Interventional Cardiology · Fullerton, CA	129	242
Danh Nguyen Diagnostic Radiology · Riverside, CA	88	149
Charles Suh Interventional Cardiology · Fullerton, CA	84	155
Bradley Jackson Diagnostic Radiology · Fullerton, CA	67	112
Hao Ngo Diagnostic Radiology · Fullerton, CA	67	116
Unilab Corporation Clinical Laboratory · West Hills, CA	63	132
Arman Forouzannia Diagnostic Radiology · Lynnwood, WA	60	108
STAMBUK, EDGAR	52	89
UNGER, PHILLIP	41	75
Iksoo Kang Emergency Medicine · Fullerton, CA	37	56

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ST JUDE HOSPITAL INC	417	985
Victor Lee Pathology · Oceanside, CA	305	768
ST JUDE HOSPITAL INC	201	323
Jeffrey Dell Internal Medicine · Fullerton, CA	153	335
Jay Han Cardiology · Fullerton, CA	141	284
Ramesh Rathod Interventional Cardiology · Fullerton, CA	134	232
Timmy Joseph Interventional Radiology · Los Angeles, CA	134	228
Harry Peled Cardiology · Los Angeles, CA	127	396
Jesus Vera Interventional Cardiology · Fullerton, CA	123	219
Edward Lee Interventional Cardiology · Fullerton, CA	121	243
Falck Mobile Health Corp Ambulance Service Provider · Orange, CA	119	245
Bradley Jackson Diagnostic Radiology · Fullerton, CA	102	216

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events