Hai Nguyen
Physician Assistant · Westminster, CANPI 1235411422
Payments from drug & device makers
Across 124 payments — averaging $26.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$650
- Biogen$507
- Mayne Pharma Commercial LLC$480
- Exact Sciences$182
- Organon$171
- Exeltis, USA Inc.$150
- plus $1K from 16 others
What the payments were for
- Food & beverage$3,25499%
- Education$171%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AbbVie | 27 | $650 |
| Biogen | 19 | $507 |
| Mayne Pharma Commercial LLC | 11 | $480 |
| Exact Sciences | 8 | $182 |
| Organon | 7 | $171 |
| Exeltis, USA Inc. | 7 | $150 |
| Astellas Pharma US Inc | 5 | $143 |
| Bayer | 7 | $129 |
| Coopersurgical, Inc. | 6 | $127 |
| Nestle Healthcare Nutrition Inc. | 1 | $125 |
| Myriad Genetic Laboratories, Inc. | 2 | $115 |
| Sumitomo Pharma America, Inc. | 6 | $107 |
| Pfizer | 5 | $92 |
| Inari Medical, Inc. | 1 | $57 |
| Evofem Biosciences, Inc. | 3 | $53 |
| Shield Therapeutics Inc | 2 | $44 |
| Merck | 2 | $38 |
| Hologic Sales And Service, LLC | 1 | $24 |
| Daiichi Sankyo Inc. | 1 | $22 |
| Mylan Pharmaceuticals Inc. | 1 | $19 |
| Therapeuticsmd, Inc. | 1 | $18 |
| Ascend Therapeutics US, LLC | 1 | $17 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$3,271 in reported general payments places this provider in the 85th percentile of 10,423 physician assistant providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CombipatchEstradiol/Norethindrone Acet | 11 | $3,617 |
| Estradiol | 28 | $1,982 |
| ProgesteroneProgesterone, Micronized | 15 | $628 |
| Alendronate Sodium | 16 | $78 |
| Fluconazole | 11 | $42 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Westminster
- Erica MatasWestminster$38K
- John QuigleyDowney$2.9M
- Andrea NguyenIrvine$1M
- Mikhail AlperMadera$889K
- Erin JensenUpland$716K
- Franklin ClineSacramento$458K
- Carla CrespoMarina del Rey$297K
- Katherine OsakiEl Centro$274K
- Shawna JonesFountain Valley$266K
- Heather AustinSalinas$219K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.