Tien Nguyen, M.D
NPI 1013923481ActiveIndividual· Surgery, Vascular Surgery· Bakersfield, CA
Surgery, Vascular Surgery (M.D) in Bakersfield, California, trained at University of California, San Diego School of Medicine (class of 2003). 549 Medicare patients in 2024, $393,665 paid; nearly all of their 474 Part D prescriptions were generic (95%). Shockwave Medical, Inc was the largest of 10 companies reporting payments in 2025, $1,567 in all, mostly food and beverage.
Overview
| NPI | 1013923481 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 31, 2006 |
| Last updated in NPPES | Jun 2, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | A91766 | CA |
| Family Medicine | 207Q00000X | A91766 | CA |
| Surgery | 208600000X | A91766 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 549 |
|---|---|
| Services billed | 2,001 across 80 procedure codes |
| Paid by Medicare | $393,665 |
Part D prescriptions in 2024
| Prescriptions (claims) | 474 · 780 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $21,153 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Vascular Surgery |
| Secondary specialties | General Surgery |
Medical group
- Hao D Bui MD IncBakersfield, CA · 5 clinicians
Hospital affiliations
- Adventist Health BakersfieldBakersfield, CA
- Bakersfield Memorial HospitalBakersfield, CA
- Mercy HospitalBakersfield, CA
Other facilities
- Reliable Healthcare LLCHome health agency · Bakersfield, CA
Industry payments (Open Payments)
- 2025$1,567 · 29 payments from 10 companies
- 2024$339.60 · 19 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $849.69 | 4 |
| Lemaitre Vascular, Inc. | $208.99 | 4 |
| Smith+nephew, Inc. | $185.59 | 14 |
| Abbott Laboratories | $148.22 | 1 |
| Organogenesis Inc. | $41.89 | 1 |
What the 2025 payments were for
- Food and Beverage$1,567 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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