Venkatanarayanan Ganapathy, MD
Orthopaedic Surgery of the Spine · Tempe, AZNPI 1588070239
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,060 of the $4,960 with a category attached, or 61.7%. Medtronic accounts for 68.2% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2024 at $2,328 and has fallen 73.3% since, to $622 in 2025. That places this record below the midpoint for orthopaedic surgery of the spine clinicians in AZ, where the typical reported total is $49,864.
Across 50 payments — averaging $99.20 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$3K
- Globus Medical$1K
- Centinel Spine, LLC$227
- Saluda Medical Americas, Inc.$80
- Medela LLC$72
- Johnson & Johnson$41
- plus $118 from 5 others
What the payments were for
- Travel & lodging$3,06062%
- Food & beverage$1,72535%
- Education$1754%
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) | 31 | $3,382 |
| Globus Medical(2 entities) | 9 | $1,040 |
| Centinel Spine, LLC | 1 | $227 |
| Saluda Medical Americas, Inc. | 2 | $80 |
| Medela LLC | 1 | $72 |
| Johnson & Johnson | 1 | $41 |
| Bioventus LLC | 1 | $36 |
| Nalu Medical, Inc. | 1 | $25 |
| Providence Medical Technology, Inc. | 1 | $24 |
| Smith+Nephew | 1 | $17 |
| Zimmer Biomet | 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.
How this compares
$4,960 in reported general payments places this provider in the 20th percentile of 64 orthopaedic surgery of the spine providers in Arizona.
See all orthopaedic surgery of the spine 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 orthopaedic surgery of the spine in Tempe
- Robert WaldropTempe$121K
- Alec SundetTempe$79K
- Andrew CorbettTempe$55K
- Lyle YoungTempe$14K
- Jason DattaTempe$12K
- Justin FieldPhoenix$2.3M
- John HallFlagstaff$783K
- Nima SalariPhoenix$741K
- Harvinder BediPhoenix$740K
- Michael ChangMesa$692K
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.