Silas Fiefhaus, DPM
Foot & Ankle Surgery · Johnson City, TNNPI 1467023507
Payments from drug & device makers
Across 13 payments — averaging $62.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Kerecis Limited$317
- Organogenesis Inc.$215
- Reapplix Inc.$118
- Smoky Mountain Surgical LLC$53
- Alpha Orthopedic Systems$33
- Integra Lifesciences Corporation$29
- plus $51 from 3 others
What the payments were for
- Food & beverage$49961%
- Education$31739%
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 |
|---|---|---|
| Kerecis Limited | 1 | $317 |
| Organogenesis Inc. | 5 | $215 |
| Reapplix Inc. | 1 | $118 |
| Smoky Mountain Surgical LLC | 1 | $53 |
| Alpha Orthopedic Systems | 1 | $33 |
| Integra Lifesciences Corporation | 1 | $29 |
| Amgen | 1 | $20 |
| Globus Medical | 1 | $17 |
| Medtronic | 1 | $14 |
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.
- Kerecis SurgiClose$1,268
- Kerecis GraftGuide$317
- 3C Patch Kit - Box$118
How this compares
$816 in reported general payments places this provider in the 20th percentile of 145 foot & ankle surgery 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 foot & ankle surgery in Johnson City
- Frank OgnibeneMemphis$353K
- Garnett MurphyGermantown$225K
- Sebastien DemoinyMorristown$210K
- Robert ThompsonMurfreesboro$205K
- Bhekumuzi KhumaloUnion City$201K
- Walter ButlerMemphis$191K
- Chad WebsterCordova$185K
- Christian SmithCordova$153K
- Clayton BettinMemphis$89K
- David RichardsonGermantown$61K
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.