Diana Chu, OD
Optometrist · Greenbelt, MDNPI 1174149207
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (43.4%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. 25 manufacturers reported payments, led by Bausch & Lomb Americas Inc. at 31.7% of the total. Among optometrist clinicians in MD 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 148 payments — averaging $81.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bausch & Lomb Americas Inc.$4K
- Dompe US, Inc.$3K
- Tarsus Pharmaceuticals, Inc.$1K
- Alcon$1K
- Sun Pharmaceutical Industries Inc.$484
- Biotissue Holdings Inc.$346
- plus $2K from 19 others
What the payments were for
- Consulting fees$3,52029%
- Speaking & faculty fees$2,27619%
- Travel & lodging$1,0188%
- Food & beverage$5,21643%
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 |
|---|---|---|
| Bausch & Lomb Americas Inc. | 18 | $3,819 |
| Dompe US, Inc. | 9 | $2,619 |
| Tarsus Pharmaceuticals, Inc. | 11 | $1,238 |
| Alcon | 21 | $1,143 |
| Sun Pharmaceutical Industries Inc. | 13 | $484 |
| Biotissue Holdings Inc. | 10 | $346 |
| Kala Pharmaceuticals, Inc. | 7 | $344 |
| Aerie Pharmaceuticals, Inc. | 7 | $323 |
| Johnson & Johnson Vision Care, Inc. | 7 | $212 |
| Oyster Point Pharma, Inc. | 9 | $207 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 5 | $199 |
| AbbVie(2 entities) | 4 | $171 |
| Amgen | 6 | $160 |
| Harrow Eye, LLC | 2 | $147 |
| LKC Technologies, Inc. | 2 | $121 |
| Glaukos Corporation | 3 | $111 |
| Sight Sciences, Inc. | 2 | $103 |
| Rxsight Inc | 3 | $90 |
| Genentech USA, Inc. | 3 | $43 |
| Regeneron Healthcare Solutions, Inc. | 1 | $38 |
| Eyevance Pharmaceuticals LLC | 1 | $25 |
| Thea Pharma Inc. | 1 | $24 |
| Astellas Pharma US Inc | 1 | $23 |
| Oasis Medical, Inc. | 1 | $22 |
| Novartis | 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.
- INFUSE$2,748
- Oxervate$2,485
- Rhopressa$529
- INVELTYS$257
- EYSUVIS$257
- Clareon PanOptix Pro$146
- Prokera$140
- LOTEMAX SM$125
- XDEMVY$122
- TOTAL30$120
- DAILIES TOTAL1$120
- Precision 1$120
- VEVYE$114
- VUITY$111
- Rocklatan$109
- CEQUA$107
How this compares
$12,030 in reported general payments places this provider in the 95th percentile of 790 optometrist providers in Maryland.
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 | 27 | $40,812 |
| Cyclosporine | 19 | $9,882 |
| Brimonidine Tartrate | 34 | $3,795 |
| Latanoprost | 144 | $1,509 |
| Prednisolone Acetate | 23 | $1,481 |
| Ketorolac Tromethamine | 26 | $841 |
| Timolol Maleate | 65 | $825 |
| Ofloxacin | 30 | $451 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 37 | $445 |
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 | $171 | $40,81227 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 95th percentile of 790 optometrist providers in Maryland.
Other optometrist in Greenbelt
- Susan LathropFulton$337K
- Timothy EarleyOakland$276K
- Padmini NathanFrederick$199K
- Alan GlazierRockville$87K
- Andrew MorgensternBethesda$62K
- Devin SasserSilver Spring$40K
- Rizwana IqbalEllicott City$34K
- Brian WoolfPasadena$19K
- Vickie FangGaithersburg$17K
- Aaron WeinsteinWaldorf$16K
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.