Alan Siu, MD
Neurological Surgery · Ventura, CANPI 1306073457
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (52.7%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. 14 manufacturers reported payments, led by Medical Device Business Services, Inc. at 38.5% of the total. Reporting peaked in 2022 at $11,958 and has fallen 97.6% since, to $286 in 2025.
Across 174 payments — averaging $156.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medical Device Business Services, Inc.$10K
- Medtronic$6K
- Depuy Synthes Products, Inc.$5K
- Johnson & Johnson$2K
- Si-bone, Inc.$2K
- Globus Medical$717
- plus $935 from 8 others
What the payments were for
- Consulting fees$7,31527%
- Travel & lodging$14,34053%
- Food & beverage$5,54820%
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 |
|---|---|---|
| Medical Device Business Services, Inc. | 33 | $10,460 |
| Medtronic(2 entities) | 53 | $6,083 |
| Depuy Synthes Products, Inc. | 3 | $5,300 |
| Johnson & Johnson | 49 | $1,980 |
| Si-bone, Inc. | 9 | $1,727 |
| Globus Medical(2 entities) | 14 | $717 |
| Centinel Spine, LLC | 1 | $316 |
| Zimmer Biomet | 2 | $150 |
| Relievant Medsystems, Inc. | 1 | $146 |
| Biotronik NRO, Inc. | 1 | $102 |
| Highridge Medical LLC | 1 | $65 |
| Stryker | 3 | $59 |
| UCB, Inc. | 2 | $50 |
| Boston Scientific | 2 | $47 |
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.
- CD HORIZON$1,855
- VIPER$1,797
- iFuse Implant$1,574
- CONDUIT$1,485
- MAZOR X SYSTEM$1,233
- Intracept$585
- TLIF$405
- Vivigen MIS Delivery System$360
- StealthStation$335
- PRODISC L$316
- Spine & Trauma 3D Navigation$246
- SYNFIX Evolution$245
- SYMPHONY$235
- Mazor X Stealth Edition$175
- Biomet SpinalPak$133
- CLYDESDALE$119
- Sentio$112
- BRAINLAB$103
- EXPEDIUM$103
- BIOTRONIK$102
How this compares
$27,202 in reported general payments places this provider in the 75th percentile of 773 neurological surgery 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 neurological surgery in Ventura
- Christopher AmesSan Francisco$7.1M
- Larry KhooLos Angeles$2.8M
- Samy AbdouSan Diego$2.4M
- Bret AbshireMurrieta$2.3M
- William TaylorSan Diego$2.1M
- Tooraj GravoriEncino$2M
- Ali MesiwalaRancho Cucamonga$1.5M
- Joseph OsorioSan Diego$1.3M
- Ian JohnsonFresno$1.3M
- Aaron Cohen-GadolLos Angeles$1.3M
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.