Sung Whan Choi, M.D.
NPI 1013917046ActiveIndividual· Internal Medicine, Cardiovascular Disease· San Francisco, CA
Internal Medicine, Cardiovascular Disease (M.D.) in San Francisco, California, trained at University of Virginia School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $429,541 for 1,531 claims, against $123,980 paid for services in 2024. Heartflow, Inc. was the largest of 3 companies reporting payments in 2025, $301.11 in all, mostly food and beverage.
Overview
| NPI | 1013917046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 1, 2005 |
| Last updated in NPPES | Dec 15, 2025 |
| Certified by provider | Dec 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A88258 | CA |
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 - Interventional Cardiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 685 |
|---|---|
| Services billed | 1,879 across 59 procedure codes |
| Paid by Medicare | $123,980 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,531 · 3,631 30-day fills |
|---|---|
| Patients | 260 |
| Total drug cost | $429,541 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Virginia School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Interventional Cardiology |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- California Pacific Medical Center - Mission BernalSan Francisco, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$301.11 · 3 payments from 3 companies
- 2024$201.10 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heartflow, Inc. | $168.30 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $108.31 | 1 |
| Abbott Laboratories | $24.50 | 1 |
What the 2025 payments were for
- Food and Beverage$301.11 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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