Eugene Byun, MD
Interventional Cardiology Physician · Fullerton, CA
Eugene Byun, MD is an interventional cardiology physician with a practice address in Fullerton, California, and NPI 1104812643, issued on Sep 20, 2005. Check the license (California G82180, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eugene Byun
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- G82180 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Valencia Mesa Dr, Fullerton, CA 92835
- Phone
- (714) 446-5050
- Enumerated
- Sep 20, 2005
- Record last updated
- Mar 6, 2026
- Fax
- (714) 446-5150
- Medicare enrollment
- Enrolled (PECOS I20100622000646); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 100 E Valencia Mesa Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eugene Byun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G82180Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average interventional cardiology physician in 2024
7,496 Medicare Part D claims for 904 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium597 claims
- Metoprolol Succinate428 claims
- Furosemide385 claims
- Eliquis360 claims
- Amlodipine Besylate350 claims
- Rosuvastatin Calcium340 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,139.22
58 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Providence Medical FoundationFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Interventional Cardiology Physician providers in California
There are 632 interventional cardiology physician records in California.
Other interventional cardiology physician records in California
- Ayman AbdelkarimTorrance, CA1407353600
- Murrad Abdelkarim, M.D.Torrance, CA1073706495
- Obai Abdullah, MDCarmichael, CA1417263450
- Mohammad Abid, MD FACCIndio, CA1699857706
- Bader Abu Ghalyoun, MDStockton, CA1740492214
- Islam Abudayyeh, M.D.Redlands, CA1356451785
- Roger Acheatel, M.D.Escondido, CA1730182619
- Oluwayemisi Adejumo, M.D.Oakland, CA1699031179
- Ashish Aggarwal, M.D.Encino, CA1760682868
- Atul Aggarwal, MDBakersfield, CA1043290778
Common questions
What is Eugene Byun, MD's NPI number?
Eugene Byun, MD's National Provider Identifier (NPI) is 1104812643, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eugene Byun, MD located?
The NPPES record lists a practice address at 100 E Valencia Mesa Dr, Fullerton, CA, 92835. Phone: (714) 446-5050. Providers update this record themselves, so call before visiting.
How can I verify Eugene Byun, MD's license?
NPPES lists California license number G82180, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eugene Byun, MD prescribe under Medicare Part D?
In 2024, Eugene Byun, MD had 7,496 Medicare Part D claims for 904 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.