Trung Hieu Nguyen, MD
NPI 1932307766ActiveIndividual· Internal Medicine· Marshall, TX
Internal Medicine (MD) in Marshall, Texas, trained at Brody School of Medicine at East Carolina University (class of 2007). 415 Medicare patients in 2024, $220,748 paid; nearly all of their 597 Part D prescriptions were generic (92%). Merck Sharp & Dohme LLC reported $15.13 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1932307766 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 3, 2007 |
| Last updated in NPPES | Jan 2, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | N6537 | TX |
| Internal Medicine | 207R00000X | 9406784 | KS |
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 | 415 |
|---|---|
| Services billed | 3,443 across 16 procedure codes |
| Paid by Medicare | $220,748 |
Part D prescriptions in 2024
| Prescriptions (claims) | 597 · 1,089 30-day fills |
|---|---|
| Patients | 167 |
| Total drug cost | $36,985 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Brody School of Medicine at East Carolina University |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
Medical group
- North Texas Physician Services, PLLCLongview, TX · 238 clinicians
Hospital affiliations
- Christus Good Shepherd Medical CenterLongview, TX
- Christus Mother Frances HospitalTyler, TX
- Longview Regional Medical CenterLongview, TX
- Ut Health East Texas Tyler Regional HospitalTyler, TX
- Willis Knighton Medical CenterShreveport, LA
Other facilities
- Longview Rehabilitation HospitalInpatient rehabilitation facility · Longview, TX
- Longview Continuecare HospitalLong-term care hospital · Longview, TX
Industry payments (Open Payments)
- 2025$15.13 · 1 payment from 1 company
- 2024$73.38 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $15.13 | 1 |
What the 2025 payments were for
- Food and Beverage$15.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 internal medicine physicians in Marshall · All internal medicine physicians in Texas