Alexander Papanastassiou, MD
Neurological Surgery · San Antonio, TXNPI 1659321230
Payments from drug & device makers
Across 49 payments — averaging $171.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Insightec,inc$3K
- Irras USA, Inc.$3K
- Livanova USA, Inc.$378
- Medtronic$373
- Neuropace, Inc.$204
- Microtransponder, Inc.$163
- plus $392 from 6 others
What the payments were for
- Speaking & faculty fees$3,43641%
- Travel & lodging$2,06425%
- Food & beverage$2,85134%
- Entertainment$481%
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 |
|---|---|---|
| Insightec,inc | 26 | $3,455 |
| Irras USA, Inc. | 2 | $3,436 |
| Livanova USA, Inc. | 4 | $378 |
| Medtronic(2 entities) | 6 | $373 |
| Neuropace, Inc. | 2 | $204 |
| Microtransponder, Inc. | 2 | $163 |
| Boston Scientific | 2 | $158 |
| Innovation Technologies Inc | 1 | $103 |
| Elekta, Inc. | 1 | $48 |
| Neurelis, Inc. | 1 | $41 |
| Abbott | 1 | $26 |
| Monteris Medical Corporation | 1 | $16 |
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.
- IRRASflow$3,246
- Exablate$2,589
- VNS Therapy$221
- RNS Neurostimulator Kit$178
- CD HORIZON SPINAL SYSTEM$151
- GENERAL DBS$141
- VNS THERAPY SENTIVA MODEL 1000 GENERATOR$131
- Irrisept$103
How this compares
$8,399 in reported general payments places this provider in the 60th percentile of 582 neurological surgery providers in Texas.
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 |
|---|---|---|
| Acetaminophen-CodeineAcetaminophen With Codeine | 12 | $110 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in San Antonio
- Arnold VardimanSan Antonio$698K
- Donald AtkinsSan Antonio$239K
- John DormanOdessa$8.5M
- Daniel PetersonAustin$5.8M
- Daniel CurryHouston$3M
- Peter KanGalveston$1.8M
- Mirza BaigShenandoah$1.6M
- Koijan KainthThe Woodlands$1.3M
- Luis DuarteSan Angelo$1.2M
- Douglas FoxAustin$948K
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.