Yun Michael Shim, M.D.
NPI 1265575138ActiveIndividual· Internal Medicine, Critical Care Medicine· New York, NY
Internal Medicine, Critical Care Medicine (M.D.) with University of Virginia Physicians Group, practicing in New York, New York. Their prescriptions cost Medicare Part D more than their services did: $340,092 for 739 claims, against $33,146 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $3,884 in all, mostly consulting fees. Lists New York-Presbyterian Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1265575138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 14, 2007 |
| Last updated in NPPES | Mar 31, 2026 |
| Certified by provider | Mar 31, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 0101236773 | VA |
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 - Pulmonary Disease (NY); Practitioner - Pulmonary Disease (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 593 |
|---|---|
| Services billed | 1,279 across 32 procedure codes |
| Paid by Medicare | $33,146 |
Part D prescriptions in 2024
| Prescriptions (claims) | 739 · 1,197 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $340,092 |
| Generic share | 41% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University of Virginia Physicians GroupCharlottesville, VA · 1,717 clinicians
Hospital affiliations
- New York-Presbyterian HospitalNew York, NY
- Sentara Martha Jefferson HospitalCharlottesville, VA
- University of Virginia Medical CenterCharlottesville, VA
Industry payments (Open Payments)
- 2025$3,884 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $3,759 | 2 |
| Genentech USA, Inc. | $124.90 | 1 |
What the 2025 payments were for
- Consulting Fee$3,759 · 2 payments
- Food and Beverage$124.90 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 145 critical care physicians in New York · All critical care physicians in New York