Donald Gervais, MD
Payments from drug & device makers
Across 1,234 payments — averaging $101.58 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$72K
- Amgen$19K
- Acadia Pharmaceuticals Inc$13K
- Lundbeck LLC$4K
- UCB, Inc.$2K
- Eisai Inc.$1K
- plus $15K from 54 others
Across 5 payments — averaging $5000.00 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.
- Acadia Pharmaceuticals Inc$25K
What the payments were for
- Consulting fees$1,3001%
- Speaking & faculty fees$87,41577%
- Travel & lodging$1,4351%
- Food & beverage$22,79220%
- Education$9101%
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.
- UBRELVY$64,324
- AIMOVIG$17,822
- QULIPTA$12,413
- VYEPTI$3,250
- Arc Essentia$350
- Sierra Summit$350
- ZEPOSIA$192
- VYVGART$115
- Leqembi$113
How this compares
$125,352 in reported general payments places this provider in the 90th percentile of 225 neurology providers in Louisiana.
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gamunex-CImmune Globul G/Gly/Iga Avg 46 | 24 | $477,377 |
| Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov50 | 30 | $199,025 |
| UbrelvyUbrogepant | 73 | $100,822 |
| IngrezzaValbenazine Tosylate | 11 | $94,525 |
| AptiomEslicarbazepine Acetate | 57 | $91,285 |
| Emgality PenGalcanezumab-Gnlm | 106 | $87,379 |
| Aimovig AutoinjectorErenumab-Aooe | 107 | $83,899 |
| NourianzIstradefylline | 27 | $80,745 |
| NuplazidPimavanserin Tartrate | 15 | $76,420 |
| VimpatLacosamide | 54 | $60,553 |
| BriviactBrivaracetam | 33 | $47,099 |
| Nurtec OdtRimegepant Sulfate | 33 | $40,996 |
| QuliptaAtogepant | 33 | $36,182 |
| Lacosamide | 514 | $35,352 |
| Repatha SureclickEvolocumab | 37 | $22,794 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Grifols USA, LLCGamunex-C | $163 | $477,37724 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Gammagard Liquid | $80 | $199,02530 claims |
| AbbVieUbrelvy, Qulipta, Namzaric | $71,620 | $143,904118 claims |
| UCB, Inc.Vimpat, Briviact | $1,569 | $107,65287 claims |
| Neurocrine Biosciences, Inc.Ingrezza | $370 | $94,52511 claims |
| Sunovion Pharmaceuticals Inc.Aptiom | $818 | $91,28557 claims |
| Kyowa Kirin, Inc.Nourianz | $242 | $80,74527 claims |
| Acadia Pharmaceuticals IncNuplazid | $12,858 | $76,42015 claims |
| PfizerNurtec Odt | $509 | $40,99633 claims |
| Eisai Inc.Fycompa | $1,440 | $14,80712 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 225 neurology providers in Louisiana.
Other neurology in Gray
- Edward HaightGray$26K
- Ariel Antezana AntezanaAlexandria$2.5M
- Jon OlsonBaton Rouge$1.7M
- Bridget BagertNew Orleans$1.4M
- Carol RedillasChalmette$1.3M
- Joseph TarsiaNew Orleans$1.2M
- Angela TraylorNew Orleans$941K
- Meghan HarrisShreveport$698K
- Maria Carmen WilsonCovington$681K
- Kevin CallerameBaton Rouge$420K
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.