Thao Ngoc Nguyen, MD
Pediatrics (MD) in Westminster, California, licensed in CA, with an NPI issued in June 2006. Enrolled in Medicare as practitioner - pediatric medicine. Glaxosmithkline, LLC. was the largest of 5 companies reporting payments in 2025, $214.04 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1831126036 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 26, 2006 |
| Last updated in NPPES | Dec 12, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | A77899 | CA |
| Internal Medicine | 207R00000X | A77899 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Thao T P Nguyen · Pharmacist | 1128a1 | May 8, 1985 | Pomona, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Pediatric Medicine (CA) |
|---|
Industry payments (Open Payments)
- 2025$214.04 · 9 payments from 5 companies
- 2024$63.92 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $57.90 | 2 |
| Merck Sharp & Dohme LLC | $46.56 | 2 |
| Sanofi Pasteur Inc. | $44.63 | 2 |
| Ars Pharmaceuticals Operations, Inc. | $40.03 | 2 |
| Sumitomo Pharma America, Inc. | $24.92 | 1 |
What the 2025 payments were for
- Food and Beverage$214.04 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other pediatricians in Westminster
- 1316974561
- 1316938749
- 1396831210
- 1043402621
- 1144378050
- 1144598897
- 1346186749
- 1407235625
- 1508968223
- 1568499630
- 1609117530
- 1801984596
All 19 pediatricians in Westminster · All pediatricians in California