Sonia Nayyar, MD
Neurology · Apple Valley, CANPI 1033401070
Payments from drug & device makers
Across 730 payments — averaging $19.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- UCB, Inc.$1K
- Amgen$1K
- AbbVie$981
- SK Life Science, Inc.$854
- Novartis$796
- Argenx US, Inc.$590
- plus $9K from 54 others
What the payments were for
- Speaking & faculty fees$1831%
- Food & beverage$13,80498%
- Education$801%
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
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.
How this compares
$14,067 in reported general payments places this provider in the 75th percentile of 1,996 neurology 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CopaxoneGlatiramer Acetate | 11 | $64,481 |
| Aimovig AutoinjectorErenumab-Aooe | 42 | $36,598 |
| Nurtec OdtRimegepant Sulfate | 14 | $18,365 |
| Gabapentin | 274 | $6,422 |
| Carbamazepine ErCarbamazepine | 30 | $4,822 |
| Levetiracetam | 87 | $3,857 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 133 | $3,053 |
| Memantine Hcl | 121 | $3,010 |
| Quetiapine Fumarate | 119 | $2,751 |
| Donepezil Hcl | 274 | $2,586 |
| Lacosamide | 27 | $2,573 |
| Divalproex Sodium | 28 | $2,042 |
| Lidocaine | 19 | $1,900 |
| Dalfampridine ErDalfampridine | 15 | $1,765 |
| Amitriptyline Hcl | 66 | $1,530 |
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 |
|---|---|---|
| Teva Pharmaceuticals USA, Inc.Copaxone | $553 | $64,48111 claims |
| PfizerNurtec Odt | $89 | $18,36514 claims |
| Upsher-smith Laboratories LLCTopiramate | $51 | $1,48086 claims |
| Amneal Pharmaceuticals LLCPyridostigmine Bromide | $260 | $25313 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 75th percentile of 1,996 neurology providers in California.
Other neurology in Apple Valley
- Timothy CloughesyLos Angeles$33.1M
- Jack FlorinFullerton$13M
- David KudrowSanta Monica$12.8M
- John Ravitsla Jolla$8.4M
- Perminder BhatiaFresno$8.3M
- Perry ShiehLos Angeles$8.2M
- Benjamin FrishbergCarlsbad$8.2M
- Bruce CreeSan Francisco$8M
- Lawrence RechtPalo Alto$6.6M
- Stanley PrusinerSan Francisco$6.5M
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.