Derek Liang, D.O.
NPI 1093000663ActiveIndividual· Obstetrics & Gynecology· New Freedom, PA
Obstetrics & Gynecology (D.O.) with Wellspan Medical Group and 1 other group, practicing in New Freedom, Pennsylvania. 34 Medicare patients in 2024, $4,464 paid; nearly all of their 84 Part D prescriptions were generic (93%). Baxter Healthcare reported $113.02 in payments in 2025, mostly food and beverage. Lists Gettysburg Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1093000663 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 13, 2011 |
| Last updated in NPPES | Jan 27, 2025 |
| Certified by provider | Jan 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | OS019509 | PA |
| Obstetrics & Gynecology | 207V00000X | 261588 | NY |
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 - Obstetrics/Gynecology (NY); Practitioner - Obstetrics/Gynecology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 34 |
|---|---|
| Services billed | 52 across 17 procedure codes |
| Paid by Medicare | $4,464 |
Part D prescriptions in 2024
| Prescriptions (claims) | 84 · 103 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $4,084 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical groups
- Wellspan Medical GroupEphrata, PA · 2,480 clinicians
- York HospitalYork, PA · 91 clinicians
Hospital affiliations
- Gettysburg HospitalGettysburg, PA
- Wellspan York HospitalYork, PA
Industry payments (Open Payments)
- 2025$113.02 · 1 payment from 1 company
- 2024$14.45 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $113.02 | 1 |
What the 2025 payments were for
- Food and Beverage$113.02 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in New Freedom
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- 1689303182
- 1134151590