Ying Liu, MD
Obstetrics & Gynecology · Washington, DCNPI 1437503745
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (42.1%), education and travel and lodging — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 79.0% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2023 at $1,495 and has fallen 61.8% since, to $571 in 2025. Among obstetrics & gynecology clinicians in DC with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 25 payments — averaging $133.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- Davol Inc.$277
- Acera Surgical, Inc.$161
- Johnson & Johnson$140
- Pfizer$40
- Sumitomo Pharma America, Inc.$32
- plus $51 from 3 others
What the payments were for
- Travel & lodging$89427%
- Food & beverage$1,40642%
- Education$1,01930%
- Gifts$231%
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 |
|---|---|---|
| Intuitive Surgical | 13 | $2,641 |
| Davol Inc. | 3 | $277 |
| Acera Surgical, Inc. | 1 | $161 |
| Johnson & Johnson | 1 | $140 |
| Pfizer | 2 | $40 |
| Sumitomo Pharma America, Inc. | 2 | $32 |
| AbbVie | 1 | $20 |
| Hologic Sales And Service, LLC | 1 | $17 |
| Avanos Medical | 1 | $14 |
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.
- Da Vinci Surgical System$1,304
- DAVINCI XI$1,000
- ARISTA$253
- Restrata Wound Matrix$161
- ETHICON$140
- Megadyne$140
- VISTASEAL$140
How this compares
$3,342 in reported general payments places this provider in the 90th percentile of 195 obstetrics & gynecology providers in District of Columbia.
See all obstetrics & gynecology providers in District of Columbia →
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 |
|---|---|---|
| Medroxyprogesterone Acetate | 11 | $281 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Washington
- Mark HathawayWashington$180K
- Renuka Darolia AdelizziWashington$72K
- Jovana TavcarWashington$5K
- Rachel ScottWashington$5K
- Jamila PerrittWashington$5K
- Stephanie HackWashington$4K
- Nicholas HazenWashington$4K
- Serina FloydWashington$4K
- Amr MadkourWashington$4K
- Peng YeWashington$3K
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.