Diana Nguyen-Pham, MD
Family Medicine · Fountain Valley, CANPI 1013064005
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $10,000 of the $14,657 with a category attached, or 68.2%. AbbVie accounts for 71.9% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2022 at $6,420 and has fallen 80.3% since, to $1,263 in 2024. Among family medicine clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 73 payments — averaging $200.77 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$11K
- Merz North America, Inc.$4K
- Galderma Laboratories, L.p.$216
- Biohaven Pharmaceutical Holding Company Ltd.$146
- GSK$105
- Genentech USA, Inc.$20
- plus $31 from 2 others
What the payments were for
- Speaking & faculty fees$10,00068%
- Food & beverage$4,65732%
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(2 entities) | 18 | $10,544 |
| Merz North America, Inc. | 37 | $3,594 |
| Galderma Laboratories, L.p. | 3 | $216 |
| Biohaven Pharmaceutical Holding Company Ltd. | 6 | $146 |
| GSK | 6 | $105 |
| Genentech USA, Inc. | 1 | $20 |
| Paratek Pharmaceuticals, Inc. | 1 | $16 |
| Pfizer | 1 | $15 |
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.
- XEOMIN$1,954
How this compares
$14,657 in reported general payments places this provider in the 95th percentile of 10,533 family medicine providers in California.
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.
Other family medicine in Fountain Valley
- Sherly SoleimanEncino$1.2M
- Pamela KushnerLos Angeles$1.2M
- Sujata NarayanStanford$1.2M
- Jeffrey UngerChino$906K
- Alexander RivkinLos Angeles$866K
- Scott HowellLos Angeles$793K
- Derrick ButlerLos Angeles$692K
- Sandra CalmanMontara$589K
- Anthony JonesOakland$377K
- Amira AyadBakersfield$360K
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.