John Murchison, MD
Cornea and External Diseases Specialist · Knoxville, TNNPI 1003898289
Payments from drug & device makers
Across 127 payments — averaging $39.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1000
- Alcon$764
- Johnson & Johnson Surgical Vision, Inc.$329
- Tarsus Pharmaceuticals, Inc.$327
- Regeneron$288
- Rxsight Inc$244
- plus $2K from 25 others
What the payments were for
- Speaking & faculty fees$281%
- Food & beverage$5,02899%
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(2 entities) | 30 | $1,000 |
| Alcon | 17 | $764 |
| Johnson & Johnson Surgical Vision, Inc. | 7 | $329 |
| Tarsus Pharmaceuticals, Inc. | 12 | $327 |
| Regeneron | 4 | $288 |
| Rxsight Inc | 5 | $244 |
| Genentech, Inc. | 3 | $233 |
| Baxter Healthcare | 4 | $203 |
| Harrow Eye, LLC | 3 | $180 |
| Acera Surgical, Inc. | 2 | $161 |
| Mallinckrodt Hospital Products Inc. | 5 | $133 |
| Axogen | 3 | $132 |
| Novartis | 3 | $114 |
| Sun Pharmaceutical Industries Inc. | 5 | $109 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 2 | $94 |
| Astellas Pharma Global Development | 1 | $92 |
| Amgen | 1 | $92 |
| Eyepoint US, Inc. | 1 | $83 |
| Bausch & Lomb Americas Inc. | 1 | $71 |
| Rayner Intraocular Lenses Limited | 3 | $67 |
| Apellis Pharmaceuticals, Inc. | 1 | $65 |
| Biotissue Holdings Inc. | 3 | $58 |
| Carl Zeiss Meditec USA, Inc. | 2 | $52 |
| Ivantis, Inc | 1 | $30 |
| Aerie Pharmaceuticals, Inc. | 2 | $30 |
| Dompe US, Inc. | 1 | $22 |
| ANI Pharmaceuticals, Inc. | 1 | $20 |
| Kala Pharmaceuticals, Inc. | 1 | $17 |
| Shire North American Group Inc | 1 | $16 |
| Genentech USA, Inc. | 1 | $16 |
| Sight Sciences, Inc. | 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.
- Tecnis IOL$357
- LUMIGAN$250
- LIGHT ADJUSTABLE LENS (LAL) AND LIGHT DELIVERY DEVICE (LDD)$154
- FLOSEAL$150
- Restrata Wound Matrix$142
- PanOptix$138
- VEVYE$134
- COMBIGAN$125
- DURYSTA$125
- Rocklatan$122
- Rhopressa$122
- XDEMVY$122
- CATALYS SYSTEM$116
- Clareon$115
How this compares
Too few cornea and external diseases specialist providers in Tennesseeto place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| RestasisCyclosporine | 40 | $60,189 |
| Prednisolone Acetate | 509 | $17,393 |
| Latanoprost | 854 | $7,433 |
| Fluorometholone | 43 | $4,491 |
| Cyclosporine | 15 | $4,298 |
| Ofloxacin | 260 | $2,984 |
| Brimonidine Tartrate | 227 | $2,389 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 113 | $2,346 |
| Travoprost | 14 | $2,297 |
| Timolol Maleate | 227 | $2,142 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 128 | $1,514 |
| Dorzolamide Hcl | 61 | $1,109 |
| Doxycycline Hyclate | 19 | $780 |
| Acyclovir | 19 | $222 |
| Doxycycline Monohydrate | 15 | $174 |
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 |
|---|---|---|
| AbbVieRestasis | $1,000 | $60,18940 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. There are too few cornea and external diseases specialist providers in Tennesseeon file to place this against a meaningful peer group, so we don't.
Other cornea and external diseases specialist in Knoxville
- Marc BodenheimerKnoxville$7K
- Matthew HartmanFranklin$3K
- Donald JonesNashville$3K
- Irina de la HuertaNashville$148
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.