John Griepentrog, MD
Trauma Surgery · Knoxville, TNNPI 1942643119
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (49.4%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 63.5% of it on its own, with 25 other manufacturers making up the rest. Reporting peaked in 2023 at $3,293 and has fallen 78.9% since, to $696 in 2025.
Across 58 payments — averaging $87.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- Zimmer Biomet$401
- Kerecis Limited$246
- Davol Inc.$175
- Acera Surgical, Inc.$164
- Kls-martin L.p.$160
- plus $702 from 20 others
What the payments were for
- Travel & lodging$58211%
- Food & beverage$1,98239%
- Education$2,50049%
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 |
|---|---|---|
| Intuitive Surgical | 8 | $3,215 |
| Zimmer Biomet | 5 | $401 |
| Kerecis Limited | 5 | $246 |
| Davol Inc. | 2 | $175 |
| Acera Surgical, Inc. | 6 | $164 |
| Kls-martin L.p. | 3 | $160 |
| Atricure, Inc. | 6 | $148 |
| Medtronic | 2 | $72 |
| Innovation Technologies Inc | 1 | $63 |
| Merck | 2 | $44 |
| La Jolla Pharmaceutical Company | 2 | $40 |
| Boston Scientific | 1 | $38 |
| Baxter Healthcare | 1 | $36 |
| Avita Medical Americas, LLC | 1 | $33 |
| Cerus Corporation | 1 | $25 |
| Lifenet Health | 1 | $22 |
| Ambu Inc. | 1 | $21 |
| Teleflex LLC | 1 | $21 |
| Abbott | 1 | $20 |
| Haemonetics Corporation | 1 | $20 |
| Aroa Biosurgery Incorporated | 2 | $18 |
| Octapharma USA, Inc. | 1 | $18 |
| Applied Medical Technology Inc | 1 | $17 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $16 |
| AstraZeneca | 1 | $16 |
| Integra Lifesciences Corporation | 1 | $15 |
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.
- DAVINCI XI$2,500
- Da Vinci Surgical System$452
- Kerecis Omega3 Marigen$409
- RIBFIX TITAN$152
- Phasix Mesh$144
- DA VINCI SP$124
- AdvantageRib$108
- Kerecis Omega3 SurgiClose$102
How this compares
$5,064 in reported general payments places this provider in the 80th percentile of 38 trauma 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 trauma surgery in Knoxville
- Brian DaleyKnoxville$5K
- Todd NickloesKnoxville$1K
- Blaine EndersonKnoxville$136
- Bryan CottonNashville$306K
- Oliver GunterNashville$46K
- Lemuel DentNashville$11K
- Michael SmithNashville$9K
- Stephen GadomskiNashville$7K
- Steven BrooksNashville$5K
- Herbert HopperNashville$5K
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.