Cornelia Drees, MD
Epilepsy · Scottsdale, AZNPI 1144265521
Payments from drug & device makers
No general payments reported
No drug or device maker reported general payments to this provider for 2019–2025. That is a common and unremarkable result.
Across 177 payments — averaging $3561.45 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.
- Livanova USA, Inc.$472K
- Neuropace, Inc.$158K
How this compares
Too few epilepsy providers in Arizonato place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| XcopriCenobamate | 40 | $81,737 |
| NayzilamMidazolam | 14 | $23,567 |
| BriviactBrivaracetam | 12 | $16,081 |
| Lacosamide | 32 | $12,209 |
| Lamotrigine ErLamotrigine | 26 | $7,789 |
| Levetiracetam | 25 | $2,132 |
| Levetiracetam ErLevetiracetam | 24 | $1,237 |
| Clobazam | 15 | $619 |
| Escitalopram Oxalate | 17 | $331 |
| Topiramate | 11 | $238 |
| Lamotrigine | 15 | $232 |
| Gabapentin | 13 | $189 |
| Clonazepam | 11 | $88 |
Paid to pharmacies, not to this prescriber.
Other epilepsy in Scottsdale
- Ganesh MurthyPhoenix$8K
- Daniel FayardPhoenix$8K
- Matthew HoerthPhoenix$3K
- Susan HermanPhoenix$3K
- David HarrisPhoenix$2K
- Courtney SchussePhoenix$1K
- Vladimir ShvartsPhoenix$1K
- Michael SteinPhoenix$635
- Kevin ChoiPhoenix$422
- Laura LehnhoffPhoenix$272
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.