Johnny Khoa Nguyen, DO
NPI 1467834572ActiveIndividual· Internal Medicine, Allergy & Immunology· Houston, TX
Internal Medicine, Allergy & Immunology (DO) in Houston, Texas, licensed in TX and FL, with an NPI issued in June 2015. 85 Medicare patients in 2024, $12,444 paid; nearly all of their 140 Part D prescriptions were generic (92%). Glaxosmithkline, LLC. was the largest of 9 companies reporting payments in 2025, $448.20 in all, mostly food and beverage.
Overview
| NPI | 1467834572 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2015 |
| Last updated in NPPES | Mar 15, 2023 |
| Certified by provider | Feb 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Allergy & Immunology Primary | 207RA0201X | S9947 | TX |
| Internal Medicine, Allergy & Immunology | 207RA0201X | OS15310 | FL |
| General Practice | 208D00000X | OS15310 | FL |
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 | 85 |
|---|---|
| Services billed | 637 across 25 procedure codes |
| Paid by Medicare | $12,444 |
Part D prescriptions in 2024
| Prescriptions (claims) | 140 · 152 30-day fills |
|---|---|
| Patients | 85 |
| Total drug cost | $2,908 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Internal Medicine |
Industry payments (Open Payments)
- 2025$448.20 · 16 payments from 9 companies
- 2024$131.21 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $202.28 | 6 |
| Novartis Pharmaceuticals Corporation | $40.51 | 2 |
| Regeneron Healthcare Solutions, Inc. | $38.91 | 1 |
| Ionis Pharmaceuticals, Inc. | $38.55 | 1 |
| Genzyme Corporation | $34.68 | 2 |
What the 2025 payments were for
- Food and Beverage$448.20 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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