Michael Alexander, MD
Neurological Surgery · Los Angeles, CANPI 1043347248
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $105,725 of the $135,246 with a category attached, or 78.2%. Stryker accounts for 96.5% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2019 at $91,896 and has fallen 90.6% since, to $8,676 in 2025. Among neurological surgery clinicians in CA 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 108 payments — averaging $1252.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$130K
- Medtronic$3K
- Imperative Care, Inc$1K
- Biogen$256
- Bodycad USA Corp$112
- Penumbra, Inc.$58
- plus $20 from 1 others
Across 11 payments — averaging $5312.75 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.
- Penumbra, Inc.$32K
- Stryker$27K
What the payments were for
- Consulting fees$105,72578%
- Speaking & faculty fees$3,2002%
- Travel & lodging$25,08119%
- Food & beverage$1,2401%
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 |
|---|---|---|
| Stryker | 98 | $130,446 |
| Medtronic | 1 | $3,200 |
| Imperative Care, Inc | 3 | $1,154 |
| Biogen | 2 | $256 |
| Bodycad USA Corp | 1 | $112 |
| Penumbra, Inc. | 2 | $58 |
| Asahi Intecc USA, Inc. | 1 | $20 |
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.
- WINGSPAN$76,074
- TREVO$66,527
- SURPASS$39,998
- GATEWAY$12,981
- NEUROFORM ATLAS$8,481
- ATLAS$7,307
- FLOWGATE$7,200
- CATALYST$7,200
- NEURO$4,456
- SYNCHRO SELECT$3,600
- TARGET$3,600
- Pipeline$3,200
- NEUROFORM EZ$1,353
- ZOOM 88-T LARGE DISTAL PLATFORM$1,100
- SURPASS EVOLVE$1,090
- TYSABRI$160
- Fine Osteotomy$112
How this compares
$135,246 in reported general payments places this provider in the 90th 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 Los Angeles
- Larry KhooLos Angeles$2.8M
- Aaron Cohen-GadolLos Angeles$1.3M
- Geoffrey ColbyLos Angeles$1.1M
- Langston HollyLos Angeles$846K
- Linda LiauLos Angeles$783K
- Adam MamelakLos Angeles$678K
- Martin PhamLos Angeles$596K
- Carl LauryssenLos Angeles$571K
- Vivek MehtaLos Angeles$442K
- Patrick HsiehLos Angeles$345K
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.