CHIWON HAHN (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1598784704
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
128 THORACIC SURGERY in VA
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Provider Addresses for CHIWON HAHN (M.D.)
7101, Jahnke Road, Westover Gardens, Richmond, Richmond City, Virginia, 23225, United States
SUITE 500
RICHMOND, VA 232254017
Phone: (804) 320-2751
Fax: (804) 673-9218
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 13 Open Payments records for all available years, with a total value of $1,104.
Total Amount is formed as General ($1,104) + Research ($0) + Ownership ($0) = $1,104.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Medtronic, Inc. ($428).
Total Amount
$1,104
General + Research + Ownership
Payments
13
Total payment records
General Amount
$1,104
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $428 |
| Abbott Laboratories | $289 |
| Edwards Lifesciences Corporation | $239 |
| W. L. Gore & Associates, Inc. | $148 |
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: 2009-02-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20090209000046 | I | Thoracic Surgery | VA | 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 |
|---|---|---|---|---|
| 33361 | Replacement of aortic valve through the skin and femoral artery | 68 | 68 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 53 | 53 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 29 | 29 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 28 | 28 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 24 | 23 | $0 |
Insurance plans in this area (ZIP 23225)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| THORACIC SURGERY | VA | 33533 | Heart artery bypass to repair one artery | 24 | 24 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Thoracic Surgery | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA | |
| - | VA | |
| Thoracic Surgery, Cardiac Surgery | PA | |
| Nurse Practitioner | VA | |
| Cardiac Surgery, Thoracic Surgery | VA | |
| Nurse Practitioner | OK | |
| Thoracic Surgery, Cardiac Surgery, General Practice | GA | |
| Nurse Practitioner | VA |
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