Wonsock Shin, M.D.
NPI 1821098203ActiveIndividual· Internal Medicine· Vienna, VA
Internal Medicine (M.D.) in Vienna, Virginia, licensed in MD, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $2,012,948 for 15,678 claims, against $321,230 paid for services in 2024. Pfizer Inc. was the largest of 12 companies reporting payments in 2025, $604.03 in all, mostly food and beverage.
Overview
| NPI | 1821098203 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 27, 2005 |
| Last updated in NPPES | Nov 14, 2025 |
| Certified by provider | Nov 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0055325 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 427 |
|---|---|
| Services billed | 7,337 across 26 procedure codes |
| Paid by Medicare | $321,230 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,678 · 40,648 30-day fills |
|---|---|
| Patients | 1,177 |
| Total drug cost | $2,012,948 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Internal Medicine |
Other facilities
- Alternate Solutions Home Health-FairfaxHome health agency · Fairfax, VA
Industry payments (Open Payments)
- 2025$604.03 · 28 payments from 12 companies
- 2024$565.53 · 27 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $146.35 | 7 |
| Lilly USA, LLC | $81.01 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $70.08 | 3 |
| Novo Nordisk Inc | $68.33 | 3 |
| Astrazeneca Pharmaceuticals LP | $48.32 | 2 |
What the 2025 payments were for
- Food and Beverage$604.03 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 61 internal medicine physicians in Vienna · All internal medicine physicians in Virginia