EUGENE JOHN WON (MD) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1659799658
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
262 CARDIAC SURGERY in CA
Provider Addresses for EUGENE JOHN WON (MD)
333 CITY BLVD W STE 1600
ORANGE, CA 928685903
Phone: (714) 456-6262
Type: Mailing
1310 W STEWART DR STE 503
ORANGE, CA 928683856
Phone: (714) 914-8003
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 56 Open Payments records for all available years, with a total value of $4,261.
Total Amount is formed as General ($4,261) + Research ($0) + Ownership ($0) = $4,261.
Last reported payment date: 2024-07-02 • Largest payer in this snapshot: ATRICURE, INC. ($1,276).
Total Amount
$4,261
General + Research + Ownership
Payments
56
Total payment records
General Amount
$4,261
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ATRICURE, INC. | $1,276 |
| Medtronic, Inc. | $1,074 |
| ABIOMED | $905 |
| Edwards Lifesciences Corporation | $436 |
| W. L. Gore & Associates, Inc. | $252 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-02-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20220714003350 | I | Thoracic Surgery | CA | TBD |
| I20250220003729 | I | Cardiac Surgery | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 46 | 17 | $0 |
| 33508 | Harvest of vein using an endoscope | 30 | 30 | $0 |
| 33533 | Coronary artery bypass using artery graft, 1 graft | 23 | 23 | $0 |
| 33268 | Exclusion of appendage of left upper chamber of heart performed during other procedure on chest | 23 | 23 | $0 |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 20 | 20 | $0 |
Insurance plans in this area (ZIP 92868)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery, Cardiac Surgery, Thoracic Surgery | TX | |
| Thoracic Surgery, Cardiac Surgery, General Surgery | TX | |
| Nurse Practitioner | TX | |
| Cardiac Surgery, General Surgery, Thoracic Surgery | IL | |
| Thoracic Surgery, Cardiac Surgery | TX | |
| Cardiac Surgery, Thoracic Surgery, General Surgery | NE | |
| - | TX | |
| Physician Assistant | TX | |
| - | TX | |
| Physician Assistant | TX |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.