Vishak John, MD
Ophthalmology · Winston Salem, NCNPI 1255515623
Payments from drug & device makers
Across 327 payments — averaging $517.32 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genentech USA, Inc.$98K
- Alimera Sciences, Inc.$30K
- Astellas Pharma Global Development$10K
- AbbVie$7K
- ANI Pharmaceuticals, Inc.$6K
- F. Hoffmann-la Roche AG$5K
- plus $13K from 19 others
What the payments were for
- Consulting fees$29,31519%
- Speaking & faculty fees$104,43667%
- Travel & lodging$9,9776%
- Food & beverage$11,9328%
- Education$170%
- Gifts$190%
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 |
|---|---|---|
| Genentech USA, Inc. | 90 | $97,916 |
| Alimera Sciences, Inc. | 49 | $29,985 |
| Astellas Pharma Global Development | 1 | $10,000 |
| AbbVie(2 entities) | 70 | $7,068 |
| ANI Pharmaceuticals, Inc. | 6 | $5,908 |
| F. Hoffmann-la Roche AG | 4 | $5,130 |
| Genentech, Inc. | 6 | $3,155 |
| Astellas Pharma US Inc | 10 | $2,700 |
| Glaukos Corporation | 2 | $2,679 |
| Regeneron Healthcare Solutions, Inc. | 30 | $2,477 |
| Notal Vision, Inc. | 3 | $616 |
| Bausch & Lomb Americas Inc. | 8 | $306 |
| Eyepoint US, Inc. | 7 | $246 |
| Regeneron | 4 | $210 |
| Biogen | 9 | $176 |
| Apellis Pharmaceuticals, Inc. | 8 | $175 |
| Coherus Oncology, Inc. | 4 | $96 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 5 | $89 |
| Harrow Eye, LLC | 4 | $76 |
| Novartis | 2 | $38 |
| Carl Zeiss Meditec, Inc. | 1 | $38 |
| Ocular Therapeutix, Inc. | 1 | $27 |
| Carl Zeiss Meditec USA, Inc. | 1 | $22 |
| Carl Zeiss Meditec AG | 1 | $19 |
| Neurotech Pharmaceuticals, Inc. | 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.
- VABYSMO$84,155
- Iluvien$28,857
- Lucentis$20,069
- YUTIQ$9,715
- OZURDEX$5,974
- Izervay$2,507
- iStent Trabecular Micro-Bypass System Model iS3$2,500
- PURIFIED CORTROPHIN GEL$2,363
- SUSVIMO$1,941
- EYLEA$1,769
- KXL System$179
- iStent infinite Trabecular Micro-Bypass System Model iS3$179
- DEXYCU$129
- EYLEA HD$122
- BTOD$116
- INFUSE$116
How this compares
$169,165 in reported general payments places this provider in the 90th percentile of 588 ophthalmology providers in North Carolina.
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 |
|---|---|---|
| Prednisolone Acetate | 143 | $7,512 |
| Ketorolac Tromethamine | 58 | $765 |
| Ofloxacin | 77 | $765 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 41 | $734 |
| Brimonidine Tartrate | 19 | $403 |
| Timolol Maleate | 48 | $336 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 15 | $180 |
| ErythromycinErythromycin Base | 18 | $176 |
| Latanoprost | 13 | $94 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Winston Salem
- Rajiv ShahWinston Salem$1.3M
- Keith WalterWinston Salem$583K
- Craig GrevenWinston Salem$359K
- Jiaxi DingWinston Salem$43K
- Glenn JaffeDurham$38.5M
- Lejla VajzovicDurham$7.5M
- Andrew AntoszykCharlotte$4M
- Majda HadziahmetovicDurham$2.4M
- Preeya GuptaRaleigh$2M
- Thomas WilliamsHickory$1.8M
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.