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Edit this profileAt a glance
- 1310 W Stewart Dr Ste 503, Orange, CA 92868
About Dr. Won
Eugene J. Won, MD practices cardiac surgery in Orange, CA. Eugene is also listed as specializing in student in an organized health care education program and thoracic surgery (cardiothoracic). According to Medicare claims data, Eugene cared for 121 Medicare patients across 121 services. The services billed most often include coronary artery bypass using artery graft, 1 graft, harvest of vein using an endoscope, and exclusion of appendage of left upper chamber of heart performed during other procedure on chest. The provider's National Provider Identifier (NPI) is 1659799658.
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) 997-2224
- Email not available
Practice Locations
1310 W STEWART DR STE 503
Orange, CA 92868
Procedures Most Often Billed to Medicare
121 services · 121 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
26 | More often than most peers in Cardiac Surgery |
| Harvest of vein using an endoscope | Procedure | 33508 |
25 | More often than most peers in Cardiac Surgery |
| Exclusion of appendage of left upper chamber of heart performed during other procedure on chest | Procedure | 33268 |
23 | More often than most peers in Cardiac Surgery |
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
19 | Less often than most peers in Cardiac Surgery |
| Coronary artery bypass using vein or artery graft, 2 grafts | Procedure | 33518 |
13 | Less often than most peers in Cardiac Surgery |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
15 | Less often than most peers in Cardiac Surgery |
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 cardiac surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Other cardiac surgeons in Orange 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Coronary artery bypass using artery graft, 1 graft 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Won?
Dr. Won is a cardiac surgeon in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiac Surgery”.
NPI registry
What is Dr. Won's address?
Dr. Won is listed at 1310 W Stewart Dr Ste 503, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Won?
The number on file is (714) 997-2224. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Won's NPI number?
Dr. Won's National Provider Identifier is 1659799658. 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
Where did Dr. Won train?
Dr. Won attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Won been practicing?
Dr. Won has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Won perform?
According to Medicare billing data, Dr. Won performs procedures including coronary artery bypass using artery graft, 1 graft, harvest of vein using an endoscope and exclusion of appendage of left upper chamber of heart performed during other procedure on chest, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Won confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Won. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.