Doctor profile · Federal record
Dr. Eugene Byun, MD
Interventional Cardiology Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Internal Medicine Physician · Fullerton, CA
- NPI 1104812643
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 E Valencia Mesa Dr, Suite 206
Fullerton, CA 928353813
(714) 446-5050
fax (714) 446-5150 - Mailing address
-
100 E Valencia Mesa Dr Ste 206
Fullerton, CA 928353817
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- March 6, 2026
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State license (1)
- California #G82180
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104812643. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,273
Distinct HCPCS
10
Medicare allowed
$209,014
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 831 | 704 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 474 | 299 | $98 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 388 | 271 | $16 | |
85610 |
Blood test, clotting time | 330 | 52 | $4 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 226 | 223 | $224 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 196 | 145 | $139 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 149 | 147 | $72 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 145 | 36 | $26 | |
93280 |
Programming of dual lead pacemaker system | 59 | 37 | $89 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 53 | 53 | $194 |
In context: peer comparison
Among 1 peers in Fullerton Interventional Cardiology Physician, average services per provider: 112. This provider delivers 29× the peer median.Open Payments
Industry payments received
All-time total
$1,139
Transactions
57
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 30 | $282.26 | |
| Pfizer INC. | 11 | $208.47 | |
| ShockWave Medical, INC | 1 | $176.50 | |
| Abbott Laboratories | 1 | $124.45 | |
| Amgen INC. | 3 | $64.00 | |
| Abiomed | 1 | $44.56 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $42.30 | |
| Sanofi-Aventis U.S. LLC | 1 | $36.13 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $32.53 | |
| Boston Scientific Corporation | 1 | $28.88 | |
| Merck Sharp & Dohme LLC | 1 | $19.52 | |
| Philips North America LLC | 1 | $18.14 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $16.76 | |
| Janssen Pharmaceuticals, INC | 1 | $15.78 | |
| Kestra Medical Technology Services, INC. | 1 | $15.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,793
Patients
1,478
Total drug cost
$902,579
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 554 | 174 | $9,047 |
| Metoprolol Succinate | Generic | 410 | 136 | $8,706 |
| Furosemide | Generic | 398 | 128 | $2,953 |
| Eliquis (Apixaban) | Brand | 377 | 102 | $435,121 |
| Amlodipine Besylate | Generic | 372 | 121 | $2,740 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 306 | 90 | $4,647 |
| Carvedilol | Generic | 305 | 90 | $3,565 |
| Metoprolol Tartrate | Generic | 293 | 91 | $2,744 |
| Xarelto (Rivaroxaban) | Brand | 291 | 84 | $384,423 |
| Warfarin Sodium | Generic | 276 | 78 | $5,115 |
Frequently asked questions
What is Dr. Eugene Byun's medical specialty?
Dr. Eugene Byun practices Interventional Cardiology Physician in Fullerton, CA.
Where does Dr. Eugene Byun practice?
Dr. Eugene Byun practices at 100 E Valencia Mesa Dr, Fullerton, CA 928353813. Office phone: 7144465050.
What is Dr. Eugene Byun's NPI?
Dr. Eugene Byun's National Provider Identifier (NPI) is 1104812643, issued by NPPES.
Does Dr. Eugene Byun accept Medicare assignment?
Yes. Dr. Eugene Byun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eugene Byun commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99213); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.