Luke Y. Ouyang, MD
NPI 1629001318ActiveIndividual· Internal Medicine· Allen, TX
Internal Medicine (MD) with Texas Health Physicians Group, practicing in Allen, Texas. Their prescriptions cost Medicare Part D more than their services did: $239,113 for 2,140 claims, against $34,273 paid for services in 2024. Lilly USA, LLC was the largest of 9 companies reporting payments in 2025, $232.16 in all, mostly food and beverage. Lists Texas Health Presbyterian Hospital Allen and 1 other hospital as hospital affiliations.
Overview
| NPI | 1629001318 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2006 |
| Last updated in NPPES | Jul 11, 2024 |
| Certified by provider | Jul 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | M1281 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 61 |
|---|---|
| Services billed | 730 across 19 procedure codes |
| Paid by Medicare | $34,273 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,140 · 5,606 30-day fills |
|---|---|
| Patients | 418 |
| Total drug cost | $239,113 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Texas Health Physicians GroupFort Worth, TX · 1,365 clinicians
Hospital affiliations
Other facilities
- Baylor Scott & White Institute for RehabilitationInpatient rehabilitation facility · Dallas, TX
Industry payments (Open Payments)
- 2025$232.16 · 13 payments from 9 companies
- 2024$539.95 · 28 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $58.74 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $49.91 | 3 |
| Exact Sciences Corporation | $26.94 | 1 |
| Pfizer Inc. | $22.17 | 1 |
| Glaxosmithkline, LLC. | $19.22 | 1 |
What the 2025 payments were for
- Food and Beverage$232.16 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 internal medicine physicians in Allen · All internal medicine physicians in Texas