Ha Nguyen, MD
Neurological Surgery · Thousand Oaks, CANPI 1518256429
Payments from drug & device makers
Across 76 payments — averaging $273.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CTL Medical Corporation$15K
- Spine Wave, Inc.$2K
- Nexxt Spine LLC$2K
- Johnson & Johnson$255
- Choice Spine, LLC$132
- Medicem Inc.$128
- plus $1K from 18 others
What the payments were for
- Consulting fees$17,71785%
- Travel & lodging$9324%
- Food & beverage$2,10010%
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 |
|---|---|---|
| CTL Medical Corporation | 18 | $15,468 |
| Spine Wave, Inc. | 6 | $1,907 |
| Nexxt Spine LLC | 6 | $1,848 |
| Johnson & Johnson(2 entities) | 9 | $255 |
| Choice Spine, LLC | 1 | $132 |
| Medicem Inc. | 3 | $128 |
| Boston Scientific | 2 | $121 |
| Globus Medical | 6 | $114 |
| Spineart USA Inc | 1 | $100 |
| Si-bone, Inc. | 3 | $83 |
| Spineology Inc. | 1 | $82 |
| Lemaitre Vascular, Inc. | 2 | $64 |
| Integra Lifesciences Corporation | 2 | $61 |
| Novocure Inc. | 3 | $53 |
| UCB, Inc. | 1 | $45 |
| Surgalign Spine Technologies, Inc. | 1 | $44 |
| Zimmer Biomet | 1 | $44 |
| Monteris Medical Corporation | 2 | $43 |
| Medtronic(2 entities) | 2 | $39 |
| Merck | 2 | $37 |
| Kls-martin L.p. | 1 | $36 |
| Baxter Healthcare | 1 | $19 |
| Terumo BCT, Inc. | 1 | $14 |
| Amgen | 1 | $13 |
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.
- SALVO SPINE SYSTEM$1,800
- Matrixx Corpectomy$1,500
- Blackhawk$132
- Tiger Shark$132
- Blackbird$132
- Tomcat$132
- VEO$132
How this compares
$20,749 in reported general payments places this provider in the 70th 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 Thousand Oaks
- Michael DorsiThousand Oaks$627K
- Geoffrey ManleySan Francisco$24.9M
- Christopher AmesSan Francisco$7.1M
- Jamshid SalehRedding$4.1M
- Bruce McCormackSan Francisco$3.9M
- Andrew SchreiberSanta Ana$3.9M
- Larry KhooLos Angeles$3M
- Jennie TaylorSan Francisco$2.7M
- Joseph CiacciSan Diego$2.6M
- Nicholas ButowskiSan Francisco$2.4M
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.