Yi Zhang, MD
Neurological Surgery · Honolulu, HINPI 1083666978
Payments from drug & device makers
Across 818 payments — averaging $1227.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Microvention, Inc.$961K
- Stryker$22K
- Medical Device Business Services, Inc.$11K
- Silk Road Medical, Inc.$2K
- Johnson & Johnson$2K
- Medtronic$2K
- plus $5K from 19 others
What the payments were for
- Consulting fees$135,27818%
- Speaking & faculty fees$455,94860%
- Travel & lodging$145,03119%
- Food & beverage$20,6803%
- Education$5950%
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 |
|---|---|---|
| Microvention, Inc. | 678 | $961,220 |
| Stryker | 28 | $22,418 |
| Medical Device Business Services, Inc. | 11 | $10,751 |
| Silk Road Medical, Inc. | 9 | $1,869 |
| Johnson & Johnson(2 entities) | 19 | $1,740 |
| Medtronic(2 entities) | 27 | $1,674 |
| Penumbra, Inc. | 7 | $938 |
| Imperative Care, Inc | 9 | $735 |
| Balt USA, LLC | 4 | $596 |
| Scientia Vascular | 2 | $487 |
| Rapid Medical Ltd | 3 | $270 |
| Maduro Medical, Inc. | 1 | $238 |
| Globus Medical | 2 | $233 |
| Inari Medical, Inc. | 2 | $221 |
| Siemens Medical Solutions USA, Inc. | 1 | $178 |
| Boston Scientific | 1 | $155 |
| Providence Medical Technology, Inc. | 3 | $133 |
| Portola Pharmaceuticals, LLC | 1 | $124 |
| Qapel Medical Inc | 2 | $93 |
| Zimmer Biomet | 2 | $54 |
| Sunovion Pharmaceuticals Inc. | 2 | $38 |
| Contego Medical, Inc | 1 | $27 |
| Sirtex Medical Inc | 1 | $24 |
| Lundbeck LLC | 1 | $19 |
| AbbVie | 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.
- WEB Aneurysm Embolization System$500,955
- WEB$111,371
- STENT$100,119
- HYDROSOFT ADVANCED$22,737
- BROADWAY 8$15,827
- SPOTLIGHT$9,173
- SOFIA 6F-131CM STR$6,612
- FRED$5,778
- ERIC RETRIEVAL DEVICE$3,475
- BOBBY$3,175
- Azur CX Detachable$3,116
- ENROUTE Transcarotid Neuroprotection System$1,688
- ENROUTE Transcarotid Stent$1,533
- SYNCHRO SELECT$1,331
- LVIS JUNIOR$1,081
- Pipeline$1,063
- SURPASS EVOLVE$962
- TRUFILL$709
- TARGET$707
- Penumbra System$461
How this compares
Too few neurological surgery providers in Hawaiito place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| BrilintaTicagrelor | 33 | $23,679 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Honolulu
- David DadeyHonolulu$15K
- Leon LiemHonolulu$9K
- Reid HoshideHonolulu$7K
- Carli BullisHonolulu$5K
- Daniel DonovanHonolulu$4K
- Ramesh KumarHonolulu$2K
- Matthew ChangHonolulu$938
- Michon MoritaHonolulu$920
- Mark GerberHonolulu$585
- Christopher LenartHonolulu$189
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.