Matthew Sanborn, MD
Neurological Surgery · Scarborough, MENPI 1285783688
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $2,400 of the $3,656 with a category attached, or 65.6%. Penumbra, Inc. accounts for 86.4% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2019 at $3,128 and has fallen 99.5% since, to $17 in 2025.
Across 14 payments — averaging $261.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$3K
- Imperative Care, Inc$222
- Siemens Medical Solutions USA, Inc.$124
- Medtronic$84
- Silk Road Medical, Inc.$28
- CSL Behring$20
- plus $17 from 1 others
Across 57 payments — averaging $535.09 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.$31K
What the payments were for
- Speaking & faculty fees$2,40066%
- Travel & lodging$72820%
- Food & beverage$50814%
- Education$201%
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 |
|---|---|---|
| Penumbra, Inc. | 4 | $3,160 |
| Imperative Care, Inc | 4 | $222 |
| Siemens Medical Solutions USA, Inc. | 2 | $124 |
| Medtronic | 1 | $84 |
| Silk Road Medical, Inc. | 1 | $28 |
| CSL Behring | 1 | $20 |
| Stryker | 1 | $17 |
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.
- Penumbra System$4,361
- Artis icono floor$106
How this compares
$3,656 in reported general payments places this provider in the 55th percentile of 23 neurological surgery providers in Maine.
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 Scarborough
- John BirknesScarborough$56K
- Jeffrey FlormanScarborough$22K
- Robert EckerScarborough$10K
- Paul PorenskyScarborough$4K
- Joseph AlexanderScarborough$4K
- Anand RughaniScarborough$3K
- Christopher NealScarborough$2K
- Daniel HerrickScarborough$1K
- Meic SchmidtScarborough$610
- Lee ThibodeauPortland$192K
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.