John Gwin, MD
Surgery · Chattanooga, TNNPI 1861486839
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (58.8%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Smith+Nephew accounts for 84.7% of it on its own, with 26 other manufacturers making up the rest. Reporting peaked in 2019 at $19,426 and has fallen 95.8% since, to $813 in 2025. Among surgery clinicians in TN with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 244 payments — averaging $97.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Smith+Nephew$20K
- Organogenesis Inc.$730
- Bioventus LLC$481
- Integra Lifesciences Corporation$392
- Lifenet Health$339
- Sanara Medtech Inc.$298
- plus $1K from 21 others
What the payments were for
- Speaking & faculty fees$14,04459%
- Travel & lodging$4,13917%
- Food & beverage$5,71424%
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 |
|---|---|---|
| Smith+Nephew | 129 | $20,250 |
| Organogenesis Inc. | 26 | $730 |
| Bioventus LLC | 8 | $481 |
| Integra Lifesciences Corporation | 5 | $392 |
| Lifenet Health | 12 | $339 |
| Sanara Medtech Inc. | 11 | $298 |
| Johnson & Johnson Vision Care, Inc. | 13 | $178 |
| Bsn Medical Inc | 4 | $165 |
| KCI USA, Inc. | 2 | $157 |
| Polymedics Innovations Inc. | 3 | $142 |
| Trice Medical, Inc. | 1 | $91 |
| Urgo Medical North America, LLC | 4 | $85 |
| Johnson & Johnson(2 entities) | 4 | $80 |
| Solventum Corporation | 3 | $66 |
| AbbVie(2 entities) | 4 | $58 |
| Surgical Specialties Corporation (US), Inc. (dba Corza Medical) | 2 | $53 |
| Medtronic | 1 | $46 |
| Tactile Systems Technology Inc | 1 | $40 |
| Kerecis Limited | 2 | $40 |
| Hartmann USA, Inc. | 1 | $40 |
| Innovation Technologies Inc | 1 | $37 |
| Cashflow Solutions, LLC | 2 | $36 |
| Merck | 1 | $24 |
| Polarityte, Inc. | 1 | $23 |
| Endogastric Solutions, Inc | 1 | $22 |
| Osiris Therapeutics Inc. | 1 | $16 |
| Wound Management Technologies, Inc | 1 | $10 |
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.
- REGRANEX$17,864
- Oasis$14,838
- Santyl$14,488
- INTEGRA$420
- SonicOne Clinic$228
- CellerateRx$176
- INTEGRA DERMAL REGENERATION TEMPLATE$140
- PRIMATRIX$140
- PuraPly$140
How this compares
$23,897 in reported general payments places this provider in the 90th percentile of 516 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| SantylCollagenase Clostridium Hist. | 21 | $11,338 |
| Doxycycline Hyclate | 23 | $275 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 23 | $212 |
| Levofloxacin | 13 | $126 |
| Ciprofloxacin Hcl | 13 | $80 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Smith+NephewSantyl | $20,250 | $11,33821 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 516 surgery providers in Tennessee.
Other surgery in Chattanooga
- Jaime Ponce-PortugalChattanooga$412K
- Nadine RamppChattanooga$30K
- Heath BroussardJackson$688K
- Eric WallaceCookeville$529K
- John RobertsonJohnson City$432K
- Evelio RodriguezNashville$362K
- Mathew NinanNashville$298K
- Joseph BroucekNashville$262K
- Linda HanGermantown$252K
- Myron StokesCordova$240K
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.