Ari Vanderwalde
Medical Oncology · Germantown, TNNPI 1083801450
Payments from drug & device makers
Across 454 payments — averaging $10,795 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$1.8M
- Genentech, Inc.$1M
- Novartis$821K
- E.r. Squibb & Sons, L.L.C.$711K
- Amgen$454K
- Gilead$35K
- plus $57K from 8 others
Across 10 payments — averaging $1125.08 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.
- F. Hoffmann-la Roche AG$11K
What the payments were for
- Consulting fees$9,03079%
- Speaking & faculty fees$5004%
- Travel & lodging$1,29211%
- Food & beverage$6566%
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 |
|---|---|---|
| Merck | 143 | $1,788,626 |
| Genentech, Inc. | 165 | $1,034,200 |
| Novartis | 10 | $820,855 |
| E.r. Squibb & Sons, L.L.C. | 24 | $711,314 |
| Amgen | 11 | $453,672 |
| Gilead | 23 | $35,495 |
| EMD Serono, Inc. | 57 | $30,088 |
| F. Hoffmann-la Roche AG | 11 | $16,734 |
| AstraZeneca(2 entities) | 2 | $7,518 |
| Puma Biotechnology, Inc. | 2 | $1,805 |
| Organon | 2 | $486 |
| Ipsen Biopharmaceuticals, Inc | 1 | $180 |
| Illumina, Inc. | 2 | $99 |
| Johnson & Johnson | 1 | $18 |
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.
- OPDIVO$6,042
- SOMATULINE DEPOT$180
- ONIVYDE$180
How this compares
$4,901,090 in reported general payments places this provider in the 90th percentile of 101 medical oncology providers in Tennessee.
Other medical oncology in Germantown
- Gregory VidalGermantown$12.5M
- Daniel VaenaGermantown$5M
- Jason ChandlerGermantown$1.6M
- Kurt TauerGermantown$44K
- Sylvia RicheyGermantown$27K
- Albert WeeksGermantown$13K
- Melissa JohnsonNashville$46M
- David SpigelNashville$29.7M
- Howard BurrisNashville$12.2M
- Ingrid MayerNashville$6.3M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.