Yongyan Cui
Gastroenterology · San Francisco, CANPI 1265895825
Payments from drug & device makers
What this record shows
This record is dominated by grants: $13,500 of the $17,426 with a category attached, or 77.5%. Boston Scientific accounts for 86.1% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2023 at $12,500 and has fallen 98.7% since, to $157 in 2024.
Across 27 payments — averaging $645.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$15K
- Olympus Corporation Of The Americas$1K
- Cook Medical LLC$1K
- AbbVie$177
- Medtronic$158
- ERBE USA Inc$79
What the payments were for
- Grants$13,50077%
- Travel & lodging$2,82616%
- Food & beverage$9646%
- Education$1351%
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 |
|---|---|---|
| Boston Scientific | 14 | $15,001 |
| Olympus Corporation Of The Americas | 6 | $1,010 |
| Cook Medical LLC | 1 | $1,000 |
| AbbVie | 2 | $177 |
| Medtronic | 3 | $158 |
| ERBE USA Inc | 1 | $79 |
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
$17,426 in reported general payments places this provider in the 85th percentile of 1,885 gastroenterology 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 29 | $151 |
| Ciprofloxacin Hcl | 24 | $67 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in San Francisco
- Kenneth BinmoellerSan Francisco$507K
- Uma MahadevanSan Francisco$325K
- Francis YaoSan Francisco$159K
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Kenneth ChangNewport Beach$1.3M
- Joo HwangStanford$1M
- Drew SchembreWalnut Creek$659K
- Quan Nhula Jolla$641K
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.