Michael Dorsi, MD
Neurological Surgery · Thousand Oaks, CANPI 1942355854
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (33.1%), speaking fees and royalties or licence payments — rather than concentrated in one kind of arrangement. 47 manufacturers reported payments, led by Nevro Corp. at 32.9% of the total. Among neurological surgery clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 1,701 payments — averaging $362.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Nevro Corp.$203K
- Globus Medical$107K
- The Institute Of Musculoskeletal Science And Education$95K
- Abbott$80K
- Ferring Pharmaceuticals Inc.$33K
- Painteq LLC$21K
- plus $77K from 41 others
Across 8 payments — averaging $1225.00 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.
- Nevro Corp.$10K
What the payments were for
- Royalty or licence$94,97115%
- Consulting fees$204,14433%
- Speaking & faculty fees$177,13629%
- Travel & lodging$64,28810%
- Food & beverage$61,55310%
- Education$14,6712%
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.
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.
- Senza Spinal Cord Stimulation System$76,718
- PROCLAIM$73,155
- Omnia$49,993
- Senza$43,295
- Spira-C$35,914
- XLIF$35,292
- Vyrsa V1$34,877
- Spira$34,240
- Spira-L$27,850
- PAINTEQ$20,917
- TLIF$11,223
- 5.5 Modular Screw system$10,862
- Evoke$10,715
- CREO MCS, Fenestrated, Sideloading$9,303
- Prospera$8,167
- SPECTRA WAVEWRITER$6,608
- Anthem$4,500
- Pulse$2,142
- VIPER$2,104
- STALIF M FLX$2,000
How this compares
$616,762 in reported general payments places this provider in the 95th 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
- 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.