Elmer Tu, MD
Ophthalmology · Chicago, ILNPI 1730192436
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $13,153 of the $20,946 with a category attached, or 62.8%. 11 manufacturers reported payments, led by Dompe US, Inc. at 28.3% of the total. Reporting peaked in 2020 at $6,725 and has fallen 99.7% since, to $23 in 2024. Among ophthalmology clinicians in IL 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 24 payments — averaging $872.74 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Dompe US, Inc.$6K
- Seagen Inc.$5K
- Oyster Point Pharma, Inc.$2K
- Astrazeneca UK Limited$2K
- Daiichi Sankyo Inc.$2K
- GSK$2K
- plus $2K from 5 others
What the payments were for
- Consulting fees$13,15363%
- Speaking & faculty fees$7,20034%
- Travel & lodging$510%
- Food & beverage$5423%
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 |
|---|---|---|
| Dompe US, Inc. | 8 | $5,920 |
| Seagen Inc. | 5 | $5,444 |
| Oyster Point Pharma, Inc. | 2 | $2,300 |
| Astrazeneca UK Limited | 1 | $2,148 |
| Daiichi Sankyo Inc. | 1 | $1,880 |
| GSK | 1 | $1,625 |
| Carl Zeiss Meditec, Inc. | 1 | $1,500 |
| Alcon | 1 | $45 |
| Bausch & Lomb Americas Inc. | 2 | $40 |
| Glaukos Corporation | 1 | $25 |
| Ocular Therapeutix, Inc. | 1 | $20 |
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.
How this compares
$20,946 in reported general payments places this provider in the 90th percentile of 773 ophthalmology providers in Illinois.
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 | 242 | $10,177 |
| Difluprednate | 22 | $8,334 |
| Loteprednol Etabonate | 28 | $3,651 |
| Fluorometholone | 29 | $2,460 |
| Timolol Maleate | 47 | $2,124 |
| Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol | 13 | $1,503 |
| ValacyclovirValacyclovir Hcl | 19 | $1,030 |
| Latanoprost | 84 | $774 |
| Brimonidine Tartrate | 62 | $589 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 42 | $507 |
| MoxifloxacinMoxifloxacin Hcl | 13 | $442 |
| Ofloxacin | 16 | $198 |
| ErythromycinErythromycin Base | 14 | $135 |
| Polymyxin B Sul-TrimethoprimPolymyxin B Sulf/Trimethoprim | 13 | $99 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Chicago
- Seenu HariprasadChicago$2.3M
- Yannek LeidermanChicago$312K
- Asim FarooqChicago$270K
- Dilraj GrewalChicago$188K
- Ahmad ArefChicago$179K
- Robert SchroederChicago$153K
- Jennifer LimChicago$150K
- Surendra BastiChicago$126K
- Allen PuttermanChicago$94K
- Maria CortinaChicago$88K
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.