Steve Chang, MD
Neurological Surgery · Chandler, AZNPI 1154501294
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $938,033 of the $1,066,634 with a category attached, or 87.9%. 14 manufacturers reported payments, led by Medtronic at 50.6% of the total. Reporting peaked in 2019 at $495,848 and has fallen 84.4% since, to $77,312 in 2025. Among neurological surgery clinicians in AZ with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 143 payments — averaging $7458.98 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$539K
- Globus Medical$513K
- Zimmer Biomet$10K
- Depuy Synthes Products, Inc.$2K
- Alphatec Spine, Inc$2K
- Abbott$820
- plus $563 from 8 others
What the payments were for
- Royalty or licence$938,03388%
- Consulting fees$9,3001%
- Travel & lodging$3,2350%
- Food & beverage$2,3690%
- Other$113,69711%
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 |
|---|---|---|
| Medtronic(2 entities) | 17 | $539,314 |
| Globus Medical | 88 | $512,831 |
| Zimmer Biomet | 5 | $9,520 |
| Depuy Synthes Products, Inc. | 1 | $1,800 |
| Alphatec Spine, Inc | 9 | $1,787 |
| Abbott | 15 | $820 |
| Carlsmed, Inc. | 1 | $241 |
| Seaspine Orthopedics Corporation | 1 | $135 |
| Zimvie Inc. | 1 | $85 |
| Centinel Spine, LLC | 1 | $41 |
| Highridge Medical LLC | 1 | $29 |
| UCB, Inc. | 1 | $15 |
| Johnson & Johnson | 1 | $12 |
| Orthofix Medical, Inc. | 1 | $5 |
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.
- ALTERA$283,866
- Excelsius - GPS$77,258
- Excelsius GPS Interbody$74,068
- nanoLOCK-C$62,239
- nanoLOCK-L$51,458
- Excelsius3D Imaging System$39,983
- ExcelsiusGPS Robotic Navigation System$37,198
- Alpine XC$9,520
- Lateral$887
- LIF$575
- Proclaim Family of SCS IPGs$443
- aprevo$241
- IdentiTi$182
- KODIAK$182
- PROCLAIM$139
- Vu aPOD Prime NanoMetalene$135
- Prodigy Family of SCS IPGs$132
- CALIBER-L$120
How this compares
$1,066,634 in reported general payments places this provider in the 95th 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 Chandler
- Taro KaibaraChandler$60K
- Richard WilliamsonChandler$22K
- Robert SpetzlerPhoenix$12.8M
- Juan UribePhoenix$6.7M
- Stephen PapadopoulosPhoenix$6M
- Volker SonntagPhoenix$2M
- Richard ChuaTucson$1.3M
- Jay TurnerPhoenix$1.2M
- Frederick MarcianoScottsdale$809K
- Michael LawtonPhoenix$761K
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.