Hai Thai Nguyen, MD
NPI 1043482029ActiveIndividual· Anesthesiology· Westminster, CA
Anesthesiology (MD) in Westminster, California, trained at University of Colorado School of Medicine, Denver (class of 2001). 319 Medicare patients in 2024, $72,740 paid; all of their 228 Part D prescriptions were generic. Shockwave Medical, Inc was the largest of 2 companies reporting payments in 2025, $214.36 in all, mostly food and beverage.
Overview
| NPI | 1043482029 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2008 |
| Last updated in NPPES | Apr 4, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A85263 | CA |
| Anesthesiology | 207L00000X | AFE85263 | CA |
| Anesthesiology, Pain Medicine | 207LP2900X | A85263 | CA |
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 - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 319 |
|---|---|
| Services billed | 611 across 78 procedure codes |
| Paid by Medicare | $72,740 |
Part D prescriptions in 2024
| Prescriptions (claims) | 228 · 255 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $2,383 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Anesthesiology |
| Secondary specialties | Interventional Pain Management |
Medical groups
- Allied Anesthesia Medical Group IncOrange, CA · 191 clinicians
- Trong B Nguyen MD IncFountain Valley, CA · 4 clinicians
Hospital affiliations
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Providence St. Joseph HospitalOrange, CA
Industry payments (Open Payments)
- 2025$214.36 · 2 payments from 2 companies
- 2024$139.34 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $198.61 | 1 |
| Merck Sharp & Dohme LLC | $15.75 | 1 |
What the 2025 payments were for
- Food and Beverage$214.36 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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