Phung Dinh Nguyen, MD
NPI 1326196734ActiveIndividual· Allergy & Immunology, Allergy· Houston, TX
Allergy & Immunology, Allergy (MD) in Houston, Texas, licensed in TX, with an NPI issued in January 2007. Their prescriptions cost Medicare Part D more than their services did: $9,259 for 299 claims, against $3,793 paid for services in 2024. Abiomed was the largest of 2 companies reporting payments in 2025, $738.93 in all, mostly travel and lodging.
Overview
| NPI | 1326196734 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology, Allergy Primary | 207KA0200X | G 2455 | 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 - Allergy/Immunology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 14 |
|---|---|
| Services billed | 460 across 3 procedure codes |
| Paid by Medicare | $3,793 |
Part D prescriptions in 2024
| Prescriptions (claims) | 299 · 475 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $9,259 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1973 |
|---|---|
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
Industry payments (Open Payments)
- 2025$738.93 · 7 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $722.11 | 6 |
| Novo Nordisk Inc | $16.82 | 1 |
What the 2025 payments were for
- Travel and Lodging$652.14 · 4 payments
- Food and Beverage$86.79 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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