Son Van Nguyen, M.D.
NPI 1881874899ActiveIndividual· Internal Medicine, Gastroenterology· New Iberia, LA
Internal Medicine, Gastroenterology (M.D.) in New Iberia, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $2,698,458 for 2,783 claims, against $273,933 paid for services in 2024. Abbvie Inc. was the largest of 5 companies reporting payments in 2025, $335.69 in all, mostly food and beverage.
Overview
| NPI | 1881874899 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 7, 2007 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 202570 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 882 |
|---|---|
| Services billed | 4,059 across 40 procedure codes |
| Paid by Medicare | $273,933 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,783 · 3,799 30-day fills |
|---|---|
| Patients | 744 |
| Total drug cost | $2,698,458 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Gastroenterology |
Medical groups
- Hospital Service District No. 1 of Iberia ParishNew Iberia, LA · 19 clinicians
- Iberia Gastroenterology Associates, Inc. A Professional Medical CorporNew Iberia, LA · 3 clinicians
Hospital affiliations
- Abbeville General HospitalAbbeville, LA
- Bayou Bend Health SystemFranklin, LA
- Iberia Medical CenterNew Iberia, LA
- Ochsner Lafayette General Medical CenterLafayette, LA
Industry payments (Open Payments)
- 2025$335.69 · 24 payments from 5 companies
- 2024$388.43 · 30 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $139.22 | 18 |
| Astrazeneca Pharmaceuticals LP | $68.49 | 1 |
| Gilead Sciences, Inc. | $57.49 | 3 |
| Madrigal Pharmaceuticals | $46.35 | 1 |
| Pfizer Inc. | $24.14 | 1 |
What the 2025 payments were for
- Food and Beverage$267.20 · 23 payments
- Education$68.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in New Iberia
- 1962526509
- 1649376112
- 1174599559
- 1871593277
All Internal Medicine, Gastroenterology providers in Louisiana →