Vi M. Nguyen, M.D.
NPI 1225265192ActiveIndividual· Family Medicine· Houston, TX
Family Medicine (M.D.) with Wangandjiang, MD, PA, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $397,406 for 4,359 claims, against $21,865 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $758.31 in all, mostly food and beverage. Lists Memorial Hermann Hospital System as a hospital affiliation.
Overview
| NPI | 1225265192 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 17, 2009 |
| Last updated in NPPES | Oct 6, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | P1907 | 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 63 |
|---|---|
| Services billed | 313 across 19 procedure codes |
| Paid by Medicare | $21,865 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,359 · 10,525 30-day fills |
|---|---|
| Patients | 455 |
| Total drug cost | $397,406 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Wangandjiang, MD, PAHouston, TX · 14 clinicians
Hospital affiliation
- Memorial Hermann Hospital SystemHouston, TX
Industry payments (Open Payments)
- 2025$758.31 · 45 payments from 14 companies
- 2024$867.54 · 47 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $206.02 | 16 |
| Amgen Inc. | $157.86 | 11 |
| Novo Nordisk Inc | $75.90 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $64.13 | 3 |
| Abbvie Inc. | $38.22 | 2 |
What the 2025 payments were for
- Food and Beverage$758.31 · 45 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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