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- 100 E Valencia Mesa Dr, Suite 206, Fullerton, CA 92835
About Dr. Byun
Eugene Byun, MD is a healthcare provider in Fullerton, CA specializing in cardiovascular disease (cardiology). Eugene trained at Indiana University School of Medicine, graduating in 1992. Eugene is also listed as specializing in interventional cardiology, cardiovascular disease, and internal medicine. Medicare claims data shows Eugene provided 3,143 services to 2,223 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and blood test, clotting time. This provider record is associated with NPI 1104812643.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 446-5050
- Email not available
Practice Locations
100 E VALENCIA MESA DR SUITE 206
Fullerton, CA 92835
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
- Fainting and syncope
- Heart palpitations
- Postural orthostatic tachycardia syndrome
Valve and structural heart
- Aortic stenosis
- Mitral regurgitation
- Mitral valve prolapse
- Patent foramen ovale
Vascular and risk factors
- Aortic aneurysm
- Carotid artery disease
- Familial hypercholesterolemia
- Resistant hypertension
Artery & vascular
- Peripheral Artery Disease (PAD)
Heart inflammation
- Pericarditis (Heart Sac Inflammation)
Heart muscle
Heart valves
Vascular disease
- High Blood Pressure in the Lungs (Pulmonary Hypertension)
Procedures & services
Most searched procedures
- Echocardiogram
- EKG
- Heart monitor
- Heart stent
- Pacemaker surgery
- Stress test
Office and noninvasive testing
- Ambulatory blood-pressure monitoring
Advanced imaging
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Consultations
- Preventive Cardiology Consultation
Diagnostic testing
Diagnostics
- Electrophysiology Study (EP Study)
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
- Heart CT Scan (Cardiac CT)
Heart procedures
Heart rhythm procedures
Imaging
- Heart Calcium Scan
- Transesophageal Echocardiogram for Kids
Implants
- Defibrillator Implant (ICD)
Recovery & rehabilitation
- Cardiac Rehabilitation Program
Vascular imaging
- Carotid Ultrasound
- Leg Circulation Test (ABI and Arterial Doppler)
Procedures Most Often Billed to Medicare
3,143 services · 2,223 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
21 | Less often than most peers in Cardiovascular Disease… |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
27 | Less often than most peers in Cardiovascular Disease… |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
850 | More often than most peers in Cardiovascular Disease… |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
263 | More often than most peers in Cardiovascular Disease… |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
230 | More often than most peers in Cardiovascular Disease… |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
161 | More often than most peers in Cardiovascular Disease… |
| Programming of dual lead pacemaker system | Treatment | 93280 |
38 | As often as other peers in Cardiovascular Disease… |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
35 | As often as other peers in Cardiovascular Disease… |
| Heart rhythm recording of continous external ekg over 8-15 days | Treatment | 93246 |
35 | More often than most peers in Cardiovascular Disease… |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
21 | Less often than most peers in Cardiovascular Disease… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other cardiovascular diseases in Fullerton 3
Same specialty, same city.
Trained at Indiana University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Indiana University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Replacement of aortic valve through the skin and femoral artery 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Byun's specialty?
Dr. Byun is a cardiovascular disease (cardiology) in Fullerton, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Byun?
Dr. Byun is listed at 100 E Valencia Mesa Dr Suite 206, Fullerton, CA 92835. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Byun?
The number on file is (714) 446-5050. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Byun?
Dr. Byun's National Provider Identifier is 1104812643. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Byun's medical education?
Dr. Byun attended Indiana University School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Byun have?
Dr. Byun has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Byun known for?
According to Medicare billing data, Dr. Byun performs procedures including replacement of aortic valve through the skin and femoral artery; reads or performs imaging such as nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Byun's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Byun. If this is you, claiming it is free.
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