RxDoctor Payments Data

David Chachkhiani, MD

Neurology · Opelousas, LANPI 1164953006

Payments from drug & device makers

$12,324in general payments, 2019–2025

Across 731 payments — averaging $16.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Neurocrine Biosciences, Inc.$2K
  • AbbVie$1K
  • UCB, Inc.$1K
  • Acadia Pharmaceuticals Inc$883
  • SK Life Science, Inc.$743
  • Catalyst Pharmaceuticals, Inc.$679
  • plus $6K from 32 others

What the payments were for

  • Travel & lodging$3963%
  • Food & beverage$11,75695%
  • Education$1721%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

19
20
21
22
23
24
25

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.

How this compares

$12,324 in reported general payments places this provider in the 70th percentile of 225 neurology providers in Louisiana.

See all neurology providers in Louisiana

Medicare billing

Part B allowed, 2024
$124,934
Medicare patients
289
Services billed
3,846

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

DrugClaimsCost to plans & patients
IngrezzaValbenazine Tosylate47$379,866
Gamunex-CImmune Globul G/Gly/Iga Avg 4648$328,637
BriviactBrivaracetam35$57,954
Nurtec OdtRimegepant Sulfate43$56,374
UbrelvyUbrogepant34$41,955
NeuproRotigotine12$14,570
RytaryCarbidopa/Levodopa19$10,182
NayzilamMidazolam13$7,798
Levetiracetam216$4,390
Gabapentin209$2,212
Lacosamide35$1,989
Propranolol Hcl143$1,798
Acetazolamide ErAcetazolamide12$1,681
Pregabalin108$1,516
Carbidopa-LevodopaCarbidopa/Levodopa117$1,445

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.

CompanyPaid to this providerPart D cost of their drugs
Neurocrine Biosciences, Inc.Ingrezza$2,088$379,86647 claims
Grifols USA, LLCGamunex-C$83$328,63748 claims
UCB, Inc.Briviact, Neupro, Nayzilam$1,004$80,32260 claims
PfizerNurtec Odt$450$56,37443 claims
AbbVieUbrelvy$1,409$41,95534 claims
Amneal Pharmaceuticals LLCRytary$142$10,18219 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 70th percentile of 225 neurology providers in Louisiana.

Other neurology in Opelousas

See the full list for Louisiana

Where these figures come from

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