Amir Abtahi, MD
Orthopaedic Surgery of the Spine · Nashville, TNNPI 1730405101
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (49.2%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. 12 manufacturers reported payments, led by Ecential Robotics at 37.8% of the total. That places this record below the midpoint for orthopaedic surgery of the spine clinicians in TN, where the typical reported total is $7,717.
Across 64 payments — averaging $128.64 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ecential Robotics$3K
- Stryker$2K
- Medical Device Business Services, Inc.$2K
- Carlsmed, Inc.$192
- 4web, Inc.$154
- Alphatec Spine, Inc$153
- plus $588 from 6 others
Across 1 payment — averaging $20,868 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.
- Stryker$21K
What the payments were for
- Consulting fees$2,75033%
- Travel & lodging$1,33216%
- Food & beverage$4,05249%
- Education$991%
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 |
|---|---|---|
| Ecential Robotics | 2 | $3,112 |
| Stryker | 43 | $2,438 |
| Medical Device Business Services, Inc. | 9 | $1,596 |
| Carlsmed, Inc. | 1 | $192 |
| 4web, Inc. | 1 | $154 |
| Alphatec Spine, Inc | 1 | $153 |
| Globus Medical | 1 | $140 |
| Johnson & Johnson | 2 | $133 |
| Spineart USA Inc | 1 | $110 |
| Cerapedics Inc. | 1 | $99 |
| Medacta USA, Inc. | 1 | $72 |
| Medtronic | 1 | $33 |
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.
- EXPEDIUM$1,555
- CAPRI CORPECTOMY CAGE SYSTEM$327
- YUKON OCT SPINAL SYSTEM$322
- SERRATO$322
- GENERAL K2M PRODUCT DISCUSSION$303
- EVEREST$289
- OASYS$246
- TRITANIUM$235
- aprevo$192
- ES2$168
- OZARK CERVICAL PLATE SYSTEM$164
- AIRO$158
- XIA 3$158
- SPINE TRUSS SYSTEM$154
- CASCADIA$141
- Pulse$140
- BACS$123
- XIA$123
- ViviGen$104
- MOUNTAINEER$104
How this compares
$8,233 in reported general payments places this provider in the 50th percentile of 51 orthopaedic surgery of the spine providers in Tennessee.
See all orthopaedic surgery of the spine providers in Tennessee →
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 |
|---|---|---|
| Gabapentin | 18 | $181 |
| Mupirocin | 22 | $173 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery of the spine in Nashville
- Lawrence BabatNashville$928K
- Raymond GardockiNashville$666K
- Colin CrosbyNashville$134K
- Morgan LorioNashville$56K
- Ryan SnowdenNashville$29K
- Byron StephensNashville$20K
- Daniel KiridlyNashville$14K
- Christopher KauffmanNashville$12K
- Melvin LawNashville$6K
- Elliott KimNashville$5K
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.