Peter Nakaji, MD
Neurological Surgery · Scottsdale, AZNPI 1174518765
Payments from drug & device makers
What this record shows
This record is dominated by ownership interests: $150,000 of the $160,367 with a category attached, or 93.5%. Osteomed LLC accounts for 93.7% of it on its own, with 18 other manufacturers making up the rest. Reporting peaked in 2019 at $152,673 and has fallen 97.6% since, to $3,628 in 2025.
Across 56 payments — averaging $2863.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Osteomed LLC$150K
- Acumed LLC$3K
- GT Medical Technologies, Inc$3K
- Aesculap, Inc.$2K
- Brainlab, Inc.$347
- Zap Surgical Systems, Inc.$335
- plus $1K from 13 others
What the payments were for
- Consulting fees$5,6003%
- Travel & lodging$1,4201%
- Food & beverage$3,3042%
- Education$430%
- Ownership interest$150,00094%
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 |
|---|---|---|
| Osteomed LLC | 8 | $150,188 |
| Acumed LLC | 9 | $3,134 |
| GT Medical Technologies, Inc | 14 | $3,095 |
| Aesculap, Inc. | 3 | $2,218 |
| Brainlab, Inc. | 2 | $347 |
| Zap Surgical Systems, Inc. | 4 | $335 |
| Longeviti Neuro Solutions Inc | 1 | $191 |
| Monteris Medical Corporation | 3 | $180 |
| Isoray, Inc | 1 | $167 |
| NICO Corporation | 1 | $132 |
| AstraZeneca | 1 | $123 |
| Ossdsign USA Incorporated | 1 | $82 |
| Stryker | 1 | $46 |
| Eisai Inc. | 2 | $36 |
| Globus Medical | 1 | $27 |
| Integra Lifesciences Corporation | 1 | $23 |
| Livanova USA, Inc. | 1 | $19 |
| Orthofix Medical, Inc. | 1 | $13 |
| Novartis | 1 | $11 |
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.
- NEURO-Other$150,000
- GammaTile$2,700
- AEOS$2,200
- ZAP-X MV IMAGER$274
- ZAP-X TREATMENT PLANNING SOFTWARE$274
- ZAP-X TREATMENT DELIVERY SOFTWARE$274
- ZAP-X RADIOSURGERY SYSTEM$274
- Image Guided Surgical Device$271
- CLEARFIT$191
- Brachytherapy Source$167
- NICO AUTOMATED PRESERVATION SYSTEM$132
- NICO BRAINPATH$132
- NICO MENIGLIDE$132
- NICO SECUREHOLD$132
- NICO FLUID SYSTEM$132
- Neuroblate$122
How this compares
$160,367 in reported general payments places this provider in the 85th percentile of 173 neurological surgery providers in Arizona.
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.
Other neurological surgery in Scottsdale
- Frederick MarcianoScottsdale$809K
- Maziyar KalaniScottsdale$334K
- Abhineet ChowdharyScottsdale$279K
- Luis TumialanScottsdale$81K
- John WaneboScottsdale$35K
- Abhishiek SharmaScottsdale$27K
- Igor YusupovScottsdale$14K
- Robert SpetzlerPhoenix$12.8M
- Juan UribePhoenix$6.7M
- Stephen PapadopoulosPhoenix$6M
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.