Won Hyung Ryu, MD
Neurological Surgery · Portland, ORNPI 1043872492
Payments from drug & device makers
What this record shows
8 manufacturers reported payments, led by Synthes GmbH at 58.7% of the total. Reporting peaked in 2019 at $1,914 and has fallen 82.1% since, to $343 in 2023. That places this record below the midpoint for neurological surgery clinicians in OR, where the typical reported total is $2,503.
Across 14 payments — averaging $218.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Synthes GmbH$2K
- Medtronic$502
- Spineology Inc.$198
- Alphatec Spine, Inc$165
- Orthofix Medical, Inc.$121
- Aesculap Implant Systems, LLC$117
- plus $163 from 2 others
Across 16 payments — averaging $3013.62 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.
- AbbVie$48K
What the payments were for
- Travel & lodging$1,79759%
- Food & beverage$1,26641%
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 |
|---|---|---|
| Synthes GmbH | 2 | $1,797 |
| Medtronic(2 entities) | 5 | $502 |
| Spineology Inc. | 2 | $198 |
| Alphatec Spine, Inc | 1 | $165 |
| Orthofix Medical, Inc. | 1 | $121 |
| Aesculap Implant Systems, LLC | 1 | $117 |
| Globus Medical | 1 | $92 |
| Stryker | 1 | $71 |
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.
- O-ARM-Spine$173
- UNID_PASS$139
- M6-C$121
- CESPACE XP$117
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$115
How this compares
$3,063 in reported general payments places this provider in the 50th percentile of 95 neurological surgery providers in Oregon.
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 neurological surgery in Portland
- Josha WoodwardPortland$145K
- Seth OliveriaPortland$97K
- Daniel ClearyPortland$63K
- Helen ShiPortland$61K
- Adam LipsonPortland$59K
- David AntezanaPortland$50K
- Christina WrightPortland$47K
- Ahmed RaslanPortland$33K
- Kim BurchielPortland$28K
- Martin BaggenstosPortland$22K
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.