Derrick Duong Nguyen, MD
NPI 1518006501ActiveIndividual· Internal Medicine, Medical Oncology· Georgetown, TX
Internal Medicine, Medical Oncology (MD) with American Oncology Partners PA, practicing in Georgetown, Texas. Their prescriptions cost Medicare Part D more than their services did: $5,579,785 for 2,351 claims, against $211,670 paid for services in 2024. Janssen Biotech, Inc. was the largest of 8 companies reporting payments in 2025, $399.35 in all, mostly food and beverage. Lists Adventhealth Central Texas and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1518006501 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 6, 2007 |
| Last updated in NPPES | Dec 29, 2025 |
| Certified by provider | Dec 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | M7471 | TX |
| Internal Medicine | 207R00000X | M7471 | TX |
| Internal Medicine, Hematology & Oncology | 207RH0003X | M7471 | 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 - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 621 |
|---|---|
| Services billed | 3,892 across 17 procedure codes |
| Paid by Medicare | $211,670 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,351 · 3,654 30-day fills |
|---|---|
| Patients | 328 |
| Total drug cost | $5,579,785 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- American Oncology Partners PAFort Wayne, IN · 391 clinicians
Hospital affiliations
- Adventhealth Central TexasKilleen, TX
- Ascension Seton HaysKyle, TX
- Baylor Scott & White Medical Center - TempleTemple, TX
- St David's Medical CenterAustin, TX
Industry payments (Open Payments)
- 2025$399.35 · 11 payments from 8 companies
- 2024$186.45 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $231.88 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $28.50 | 1 |
| Gilead Sciences, Inc. | $27.76 | 1 |
| Jazz Pharmaceuticals Inc. | $24.55 | 1 |
| Array Biopharma Inc | $23.30 | 1 |
What the 2025 payments were for
- Food and Beverage$319.36 · 10 payments
- Education$79.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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- 1730164591