Chiwon Hahn, M.D.
NPI 1598784704ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Richmond, VA
Thoracic Surgery (Cardiothoracic Vascular Surgery) (M.D.) in Richmond, Virginia, trained at Columbia University College of Physicians and Surgeons (class of 1987). 218 Medicare patients in 2024, $138,843 paid; nearly all of their 259 Part D prescriptions were generic (99%). Edwards Lifesciences Corporation was the largest of 3 companies reporting payments in 2025, $471.83 in all, mostly food and beverage.
Overview
| NPI | 1598784704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 0101055201 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Thoracic Surgery (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 364 across 31 procedure codes |
| Paid by Medicare | $138,843 |
Part D prescriptions in 2024
| Prescriptions (claims) | 259 · 413 30-day fills |
|---|---|
| Patients | 129 |
| Total drug cost | $1,637 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Thoracic Surgery |
| Telehealth | Offers telehealth |
Medical group
- Cardiac Surgical Associates LLCRichmond, VA · 20 clinicians
Hospital affiliations
- Bon Secours St Francis Medical CenterMidlothian, VA
- Cjw Medical CenterRichmond, VA
- Henrico Doctors' HospitalRichmond, VA
Other facilities
- Commonwealth Home CareHome health agency · Richmond, VA
- HCA Virginia Healthcare at HomeHome health agency · North Chesterfield, VA
Industry payments (Open Payments)
- 2025$471.83 · 8 payments from 3 companies
- 2024$571.50 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $269.04 | 5 |
| Abiomed | $110.90 | 1 |
| Philips North America LLC | $91.89 | 2 |
What the 2025 payments were for
- Food and Beverage$471.83 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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