Michael Topf, MD
Otolaryngology · Nashville, TNNPI 1851711782
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $23,008 of the $35,681 with a category attached, or 64.5%. 12 manufacturers reported payments, led by Janssen Research & Development, LLC at 35.2% of the total. 2025 is the largest year on record at $23,500, more than ten times the $428 reported in 2019. Among otolaryngology clinicians in TN with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 60 payments — averaging $594.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Janssen Research & Development, LLC$13K
- Regeneron Healthcare Solutions, Inc.$11K
- Intuitive Surgical$7K
- Kls-martin L.p.$2K
- Merck$2K
- Acera Surgical, Inc.$145
- plus $358 from 6 others
What the payments were for
- Consulting fees$23,00864%
- Travel & lodging$4,10712%
- Food & beverage$1,7675%
- Education$6,80019%
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 |
|---|---|---|
| Janssen Research & Development, LLC | 6 | $12,571 |
| Regeneron Healthcare Solutions, Inc. | 13 | $10,928 |
| Intuitive Surgical | 10 | $7,352 |
| Kls-martin L.p. | 20 | $2,420 |
| Merck | 1 | $1,908 |
| Acera Surgical, Inc. | 1 | $145 |
| Johnson & Johnson | 3 | $129 |
| Tactile Systems Technology Inc | 1 | $86 |
| Stryker | 2 | $62 |
| Cook Medical LLC | 1 | $44 |
| Checkpoint Surgical, Inc | 1 | $22 |
| KARL Storz Endoscopy-america | 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.
- LIBTAYO$10,734
- Da Vinci Surgical System$7,259
- Restrata Wound Matrix$145
How this compares
$35,681 in reported general payments places this provider in the 95th percentile of 191 otolaryngology 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.
Other otolaryngology in Nashville
- Rakesh ChandraNashville$381K
- Naweed ChowdhuryNashville$14K
- Steven EnrichNashville$11K
- Kareem TawfikNashville$10K
- Mark WilliamsNashville$8K
- Matthew SpeyerNashville$6K
- David KentNashville$4K
- Kyle MannionNashville$4K
- Charles BabbNashville$3K
- Brian CameronNashville$3K
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.