Shahjehan Ahmad, MD
Neurological Surgery · Carmel, INNPI 1841653219
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (49.8%), food and beverage and education — rather than concentrated in one kind of arrangement. 24 manufacturers reported payments, led by Medtronic at 30.8% of the total. Reporting peaked in 2024 at $7,310 and has fallen 74.0% since, to $1,899 in 2025.
Across 122 payments — averaging $120.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$5K
- Alphatec Spine, Inc$3K
- Stryker$2K
- Globus Medical$2K
- Arthrex$730
- Johnson & Johnson$450
- plus $2K from 18 others
What the payments were for
- Travel & lodging$7,31650%
- Food & beverage$7,16049%
- Education$2171%
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) | 41 | $4,533 |
| Alphatec Spine, Inc | 7 | $2,757 |
| Stryker | 14 | $2,398 |
| Globus Medical | 12 | $1,619 |
| Arthrex | 6 | $730 |
| Johnson & Johnson | 5 | $450 |
| Carlsmed, Inc. | 2 | $349 |
| Bioventus LLC | 3 | $283 |
| Boston Scientific | 3 | $182 |
| MF MED | 5 | $178 |
| Icotec Medical Inc. | 1 | $155 |
| Si-bone, Inc. | 2 | $153 |
| 4web, Inc. | 1 | $131 |
| Seaspine Orthopedics Corporation | 2 | $130 |
| Kuros Biosciences USA, Inc | 2 | $125 |
| Theragen, Inc. | 6 | $111 |
| Zimmer Biomet | 1 | $107 |
| Integra Lifesciences Corporation | 1 | $56 |
| Centinel Spine, LLC | 2 | $55 |
| GT Medical Technologies, Inc | 1 | $53 |
| VB Spine LLC | 1 | $52 |
| Mallinckrodt Hospital Products Inc. | 1 | $37 |
| DJO, LLC | 2 | $35 |
| Providence Medical Technology, Inc. | 1 | $15 |
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.
- Other - Miscellaneous$2,656
- AERO-LL$1,463
- ExcelsiusGPS Robotic Navigation System$1,257
- CD HORIZON$1,158
- CD HORIZON SPINAL SYSTEM$449
- UNID_PASS$437
- aprevo$349
- DIVERGENCE-L ANTERIOR/OBLIQUE LUMBAR FUSION SYSTEM$194
- CATALYFT PL EXPANDABLE INTERBODY SYSTEM$166
- icotec BlackArmor Spine System$155
- Mazor X Stealth Edition$150
- CAPRI CORPECTOMY CAGE SYSTEM$144
- NAPA$144
- CASCADIA INTERBODY SYSTEM$144
- SPETZLER-MALIS$143
- BoneScalpel$143
- ES2$138
- TRITANIUM$138
- SPINE TRUSS SYSTEM$131
- STRYKER NAV3$125
How this compares
$14,693 in reported general payments places this provider in the 80th percentile of 112 neurological surgery providers in Indiana.
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 | 20 | $280 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Carmel
- Jean-Pierre MobasserCarmel$3.5M
- Troy PaynerCarmel$803K
- Eric PottsCarmel$345K
- Richard RodgersCarmel$45K
- John DepowellCarmel$15K
- Charles KulwinCarmel$10K
- Daniel KimCarmel$7K
- Kenneth RenkensCarmel$7K
- Saad KhairiCarmel$6K
- Michael TurnerIndianapolis$522K
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.