Darrell Johnson
Medical Oncology · Sevierville, TNNPI 1285682179
Payments from drug & device makers
Across 105 payments — averaging $18.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$413
- Genentech USA, Inc.$194
- E.r. Squibb & Sons, L.L.C.$186
- Amgen$156
- Merck$124
- Lilly USA, LLC$89
- plus $757 from 20 others
What the payments were for
- Food & beverage$1,920100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| AstraZeneca | 13 | $413 |
| Genentech USA, Inc. | 11 | $194 |
| E.r. Squibb & Sons, L.L.C. | 14 | $186 |
| Amgen | 10 | $156 |
| Merck | 13 | $124 |
| Lilly USA, LLC | 2 | $89 |
| Astellas Pharma US Inc | 5 | $84 |
| Novartis | 5 | $83 |
| Sanofi | 1 | $79 |
| Pfizer | 6 | $78 |
| Channel Medsystems, Inc. | 1 | $64 |
| Bristol Myers Squibb | 3 | $52 |
| Johnson & Johnson | 3 | $51 |
| Rigel Pharmaceuticals, Inc. | 2 | $42 |
| Bayer | 3 | $40 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $26 |
| Incyte Corporation | 2 | $23 |
| Aurobindo Pharma USA, Inc. | 1 | $23 |
| Dendreon Pharmaceuticals LLC | 1 | $17 |
| Daiichi Sankyo Inc. | 1 | $17 |
| Tolmar Pharmaceuticals, Inc. | 1 | $16 |
| Verastem, Inc. | 1 | $14 |
| Array Biopharma Inc | 1 | $13 |
| Mylan Institutional Inc. | 1 | $13 |
| Ipsen Biopharmaceuticals, Inc | 1 | $11 |
| AbbVie | 1 | $11 |
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.
- CALQUENCE$125
How this compares
$1,920 in reported general payments places this provider in the 25th percentile of 101 medical oncology providers in Tennessee.
Other medical oncology in Sevierville
- Melissa JohnsonNashville$46M
- David SpigelNashville$29.7M
- Gregory VidalGermantown$12.5M
- Howard BurrisNashville$12.2M
- Ingrid MayerNashville$6.3M
- Daniel VaenaGermantown$5M
- Ari VanderwaldeGermantown$4.9M
- Gina VaccaroCookeville$4.8M
- Jennifer ChoeNashville$4.1M
- Cathy EngNashville$3.8M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.