Kenneth Johnsen, MD
Rheumatology · Knoxville, TNNPI 1851650865
Payments from drug & device makers
Across 862 payments — averaging $19.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$7K
- Amgen$2K
- Novartis$1K
- GSK$916
- UCB, Inc.$869
- Johnson & Johnson$834
- plus $4K from 21 others
What the payments were for
- Consulting fees$500%
- Speaking & faculty fees$3,37520%
- Travel & lodging$110%
- Food & beverage$12,90678%
- Education$2221%
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 |
|---|---|---|
| AbbVie | 264 | $7,159 |
| Amgen(2 entities) | 131 | $2,081 |
| Novartis | 94 | $1,088 |
| GSK | 53 | $916 |
| UCB, Inc. | 48 | $869 |
| Johnson & Johnson | 41 | $834 |
| Pfizer | 48 | $712 |
| E.r. Squibb & Sons, L.L.C. | 46 | $579 |
| Radius Health, Inc. | 18 | $374 |
| Lilly USA, LLC | 23 | $274 |
| Regeneron Healthcare Solutions, Inc. | 14 | $273 |
| Sanofi | 11 | $269 |
| Genentech USA, Inc. | 21 | $253 |
| AstraZeneca | 9 | $169 |
| Bristol Myers Squibb | 10 | $166 |
| Aurinia Pharma U.S., Inc. | 6 | $101 |
| Pacira Therapeutics, Inc. | 5 | $83 |
| Boehringer Ingelheim | 3 | $72 |
| Teva Pharmaceuticals USA, Inc. | 4 | $66 |
| Mallinckrodt Enterprises LLC | 3 | $60 |
| Sobi, Inc | 2 | $41 |
| Hikma Pharmaceuticals USA | 2 | $35 |
| Zyla Life Sciences, Inc. | 2 | $25 |
| Antares Pharma, Inc. | 1 | $21 |
| Gilead | 1 | $19 |
| Mallinckrodt Hospital Products Inc. | 1 | $18 |
| Merck | 1 | $11 |
How this compares
$16,564 in reported general payments places this provider in the 70th percentile of 127 rheumatology 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 |
|---|---|---|
| Enbrel SureclickEtanercept | 50 | $385,237 |
| Humira(Cf) PenAdalimumab | 28 | $190,600 |
| Cosentyx Sensoready PenSecukinumab | 13 | $95,278 |
| Orencia ClickjectAbatacept | 12 | $70,394 |
| MethotrexateMethotrexate Sodium | 532 | $14,970 |
| Hydroxychloroquine Sulfate | 297 | $9,664 |
| Leflunomide | 132 | $7,234 |
| Sulfasalazine | 163 | $3,904 |
| Gabapentin | 107 | $1,650 |
| Mycophenolate Mofetil | 27 | $1,442 |
| Prednisone | 136 | $1,342 |
| Celecoxib | 33 | $1,026 |
| Duloxetine Hcl | 48 | $1,005 |
| Folic Acid | 113 | $800 |
| Allopurinol | 87 | $799 |
Paid to pharmacies, not to this prescriber.
Other rheumatology in Knoxville
- Brett SmithKnoxville$587K
- Marcin GornisiewiczKnoxville$310K
- Robert CappsKnoxville$88K
- Jay WarrrickKnoxville$41K
- Kenny SizemoreKnoxville$27K
- Christy ParkKnoxville$16K
- William BushKnoxville$12K
- Marcum CollinsKnoxville$12K
- Tonya BakerKnoxville$10K
- James BurnsKnoxville$9K
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.