Si Woo An
NPI 1356063341ActiveIndividual· Physician Assistant· Duluth, GA
Physician Assistant in Duluth, Georgia, with an NPI issued in September 2022. Mostly services rather than prescriptions: Medicare paid $6,806 for 56 patients in 2024, with only 28 Part D claims. Lilly USA, LLC was the largest of 14 companies reporting payments in 2025, $1,100 in all, mostly food and beverage.
Overview
| NPI | 1356063341 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Sep 15, 2022 |
| Last updated in NPPES | Aug 13, 2026 |
| Certified by provider | Aug 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 56 |
|---|---|
| Services billed | 62 across 8 procedure codes |
| Paid by Medicare | $6,806 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 28 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $284.93 |
| Generic share | 96% of claims |
Industry payments (Open Payments)
- 2025$1,100 · 46 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $276.81 | 4 |
| Abbvie Inc. | $216.66 | 14 |
| Gilead Sciences, Inc. | $132.06 | 6 |
| Astrazeneca Pharmaceuticals LP | $117.86 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $72.06 | 3 |
What the 2025 payments were for
- Food and Beverage$1,100 · 46 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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