Luis Gonzalez Castro, MD
Neurology · Boston, MANPI 1174936165
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $10,980 of the $11,027 with a category attached, or 99.6%. Every reported general payment came from a single manufacturer, Servier Pharmaceuticals LLC.
Across 4 payments — averaging $2756.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Servier Pharmaceuticals LLC$11K
Across 14 payments — averaging $408,386 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.
- Merck$5.7M
What the payments were for
- Consulting fees$10,980100%
- Food & beverage$470%
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 |
|---|---|---|
| Servier Pharmaceuticals LLC | 4 | $11,027 |
How this compares
$11,027 in reported general payments places this provider in the 80th percentile of 761 neurology providers in Massachusetts.
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 neurology in Boston
- Christopher WrightBoston$2.5M
- Thomas ScammellBoston$617K
- Alfred SandrockBoston$490K
- Pushpa NarayanaswamiBoston$420K
- Roy FreemanBoston$390K
- Michael LevyBoston$387K
- Leeann BurtonBoston$325K
- Ilena GeorgeBoston$316K
- Andrew BudsonBoston$304K
- Denis BalabanBoston$297K
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.