Khanh Duc Nguyen, M.D.
NPI 1629043500ActiveIndividual· Psychiatry & Neurology, Neurology· Humble, TX
Psychiatry & Neurology, Neurology (M.D.) in Humble, Texas, trained at University of Texas Medical School at San Antonio (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $2,303,554 for 8,593 claims, against $625,110 paid for services in 2024. Tg Therapeutics, Inc. was the largest of 19 companies reporting payments in 2025, $1,002 in all, mostly food and beverage.
Overview
| NPI | 1629043500 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 22, 2006 |
| Last updated in NPPES | Apr 17, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | M3047 | 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 - Neurology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,001 |
|---|---|
| Services billed | 20,206 across 20 procedure codes |
| Paid by Medicare | $625,110 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,593 · 15,047 30-day fills |
|---|---|
| Patients | 893 |
| Total drug cost | $2,303,554 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Thai D Nguyen MD PAHumble, TX · 2 clinicians
Hospital affiliations
- HCA Houston Healthcare KingwoodKingwood, TX
- Memorial Hermann Hospital SystemHouston, TX
- Memorial Hermann Northeast HospitalHumble, TX
Other facilities
- Pam Rehabilitation Hospital of Clear LakeInpatient rehabilitation facility · Webster, TX
- Tirr Memorial HermannInpatient rehabilitation facility · Houston, TX
Industry payments (Open Payments)
- 2025$1,002 · 47 payments from 19 companies
- 2024$384.12 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $202.19 | 9 |
| Novartis Pharmaceuticals Corporation | $192.30 | 7 |
| Abbvie Inc. | $156.40 | 12 |
| Vanda Pharmaceuticals Inc. | $46.23 | 2 |
| Genentech USA, Inc. | $41.24 | 2 |
What the 2025 payments were for
- Food and Beverage$1,002 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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