da Ouyang, MD
Cardiovascular Disease · Santa Clara, CANPI 1235549460
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $1,600 of the $1,784 with a category attached, or 89.7%. Pfizer accounts for 89.7% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2021 at $1,600 and has fallen 92.4% since, to $121 in 2024. That places this record below the midpoint for cardiovascular disease clinicians in CA, where the typical reported total is $2,142.
Across 4 payments — averaging $446.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$2K
- E.r. Squibb & Sons, L.L.C.$163
- Fujifilm Sonosite, Inc.$21
Across 4 payments — averaging $193,158 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- AstraZeneca$773K
What the payments were for
- Speaking & faculty fees$1,60090%
- Food & beverage$18410%
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 |
|---|---|---|
| Pfizer | 1 | $1,600 |
| E.r. Squibb & Sons, L.L.C. | 2 | $163 |
| Fujifilm Sonosite, Inc. | 1 | $21 |
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
$1,784 in reported general payments places this provider in the 45th percentile of 2,184 cardiovascular disease 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 cardiovascular disease in Santa Clara
- Ted LoveHillsborough$102.8M
- Paul KurthSanta Barbara$6.1M
- Jason RogersSacramento$4.4M
- Matthew BudoffTorrance$3.6M
- Eric Topolla Jolla$2.2M
- Cathleen Bairey-MerzLos Angeles$1.2M
- Gagan SinghSacramento$1.2M
- Pam Taubla Jolla$1.2M
- Wilber SuStanford$1.1M
- Thomas SmithSacramento$942K
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.