Stephen Yonann Liu, MD
NPI 1780975433ActiveIndividual· Orthopaedic Surgery· Philadelphia, PA
Orthopaedic Surgery (MD) in Philadelphia, Pennsylvania, trained at Tufts University School of Medicine (class of 2011). 537 Medicare patients in 2024, $173,409 paid; nearly all of their 66 Part D prescriptions were generic (98%). Skeletal Dynamics Inc was the largest of 5 companies reporting payments in 2025, $31,252 in all, mostly education.
Overview
| NPI | 1780975433 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 29, 2011 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD460703 | PA |
| Orthopaedic Surgery | 207X00000X | MT199063 | PA |
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 - Orthopedic Surgery (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 537 |
|---|---|
| Services billed | 4,161 across 93 procedure codes |
| Paid by Medicare | $173,409 |
Part D prescriptions in 2024
| Prescriptions (claims) | 66 · 68 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $892.13 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- University of Penn - Medical GroupPhiladelphia, PA · 3,505 clinicians
Hospital affiliations
- Chester County HospitalWest Chester, PA
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
- Penn Presbyterian Medical CenterPhiladelphia, PA
- Pennsylvania HospitalPhiladelphia, PA
Other facilities
- Penn Medicine Home HealthHome health agency · Bala Cynwyd, PA
- Good Shepherd Penn PartnersLong-term care hospital · Philadelphia, PA
Industry payments (Open Payments)
- 2025$31,252 · 18 payments from 5 companies
- 2024$10,703 · 21 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Skeletal Dynamics Inc | $30,613 | 13 |
| Jazz Pharmaceuticals Inc. | $417.41 | 1 |
| Depuy Synthes Sales Inc. | $132.02 | 2 |
| Vertex Pharmaceuticals Incorporated | $63.38 | 1 |
| Stryker Corporation | $25.99 | 1 |
What the 2025 payments were for
- Education$28,800 · 3 payments
- Travel and Lodging$1,862 · 3 payments
- Food and Beverage$589.84 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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