Quoc Nguyen, MD
Otolaryngic Allergy · Garden Grove, CANPI 1659394419
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 5 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 3 manufacturers reported payments, led by Sanofi at 57.6% of the total. Reporting peaked in 2023 at $119 and has fallen 57.3% since, to $51 in 2025.
Across 5 payments — averaging $41.29 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$119
- GSK$63
- Dynavax Technologies Corporation$25
What the payments were for
- Food & beverage$206100%
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 |
|---|---|---|
| Sanofi | 1 | $119 |
| GSK | 3 | $63 |
| Dynavax Technologies Corporation | 1 | $25 |
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.
- DUPIXENT$119
How this compares
Too few otolaryngic allergy providers in Californiato place this figure against a meaningful peer group, so we don't.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ZenpepLipase/Protease/Amylase | 21 | $35,728 |
| Fluocinolone Acetonide Oil | 251 | $12,424 |
| Fluticasone Propionate | 673 | $5,988 |
| Ofloxacin | 101 | $5,779 |
| Dexlansoprazole DrDexlansoprazole | 27 | $5,111 |
| Ciprofloxacin-DexamethasoneCiprofloxacin Hcl/Dexameth | 35 | $4,574 |
| Azelastine Hcl | 231 | $3,449 |
| Pilocarpine Hcl | 73 | $2,351 |
| Ipratropium Bromide | 64 | $2,102 |
| Prednisolone Acetate | 19 | $1,361 |
| Neomycin-Polymyxin-HydrocortNeomycin/Polymyxin B/Hydrocort | 16 | $954 |
| Triamcinolone Acetonide | 52 | $699 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 52 | $586 |
| Baclofen | 29 | $567 |
| Acetazolamide | 12 | $519 |
Paid to pharmacies, not to this prescriber.
Other otolaryngic allergy in Garden Grove
- Naveen BhandarkarOrange$639K
- Akira IshiyamaLos Angeles$105K
- Edward KuanOrange$90K
- Nathalia VelasquezFremont$4K
- Mary DereberyLos Angeles$3K
- David LiuStanford$433
- Donald BurtMorgan Hill$417
- Ivor EmanuelSan Francisco$253
- Sidney FishmanNewport Beach$140
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.