Do Nguyen
Optometrist · Memphis, TNNPI 1407114663
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (51.8%), food and beverage and gifts — rather than concentrated in one kind of arrangement. 14 manufacturers reported payments, led by Alcon at 35.6% of the total. Reporting peaked in 2023 at $2,112 and has fallen 79.1% since, to $442 in 2025. Among optometrist clinicians in TN with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 51 payments — averaging $114.34 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$2K
- Biotissue Holdings Inc.$2K
- AbbVie$414
- Bausch & Lomb, A Division Of Bausch Health US, LLC$356
- Johnson & Johnson Vision Care, Inc.$238
- Genentech USA, Inc.$132
- plus $712 from 8 others
What the payments were for
- Travel & lodging$3,02252%
- Food & beverage$2,79048%
- 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 |
|---|---|---|
| Alcon | 11 | $2,077 |
| Biotissue Holdings Inc. | 14 | $1,904 |
| AbbVie(2 entities) | 7 | $414 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 4 | $356 |
| Johnson & Johnson Vision Care, Inc. | 6 | $238 |
| Genentech USA, Inc. | 1 | $132 |
| Mallinckrodt Hospital Products Inc. | 1 | $130 |
| ANI Pharmaceuticals, Inc. | 1 | $125 |
| Amgen | 1 | $115 |
| Apellis Pharmaceuticals, Inc. | 1 | $101 |
| Carl Zeiss Meditec, Inc. | 1 | $99 |
| Bausch & Lomb Americas Inc. | 1 | $87 |
| Tarsus Pharmaceuticals, Inc. | 1 | $34 |
| Carl Zeiss Meditec AG | 1 | $19 |
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.
- Dailies Aqua Comfort Plus$1,746
- AIR OPTIX$1,746
- DAILIES TOTAL1 Multifocal$771
- BIOTRUE$229
- ULTRA$229
- BIOTRUE ONE DAY$229
- Acuvue$137
- SUSVIMO$132
- ACTHAR$130
- PURIFIED CORTROPHIN GEL$125
- LUMIGAN$120
- COMBIGAN$120
- TEPEZZA$115
- DURYSTA$113
- ZYLET$105
- Syfovre$101
How this compares
$5,831 in reported general payments places this provider in the 95th percentile of 1,122 optometrist 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 |
|---|---|---|
| Travoprost | 18 | $4,047 |
| Brimonidine Tartrate | 23 | $342 |
| Latanoprost | 43 | $339 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 11 | $268 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 17 | $168 |
Paid to pharmacies, not to this prescriber.
Other optometrist in Memphis
- Christopher LievensMemphis$566K
- Whitney HauserMemphis$330K
- Melvin FriedmanMemphis$108K
- Desirae BrinkleyMemphis$51K
- Abagail KirkMemphis$14K
- Bradley HinesMemphis$12K
- David EvansMemphis$12K
- Daniel FullerMemphis$8K
- Dennis MathewsMemphis$8K
- Michael GerstnerMemphis$8K
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.