Isaac Loose, MD
Retina Specialist · Austin, TXNPI 1821075664
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.1% of the total across 92 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 12.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2023 at $830 and has fallen 82.4% since, to $146 in 2025.
Across 92 payments — averaging $41.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$460
- Johnson & Johnson Surgical Vision, Inc.$381
- Genentech USA, Inc.$358
- Novartis$346
- Astellas Pharma US Inc$272
- Regeneron Healthcare Solutions, Inc.$233
- plus $2K from 16 others
Across 37 payments — averaging $4412.11 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Genentech, Inc.$98K
- Hoffmann-la Roche Limited$48K
- AbbVie$18K
What the payments were for
- Food & beverage$3,54092%
- Education$932%
- Entertainment$1444%
- Other$642%
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) | 17 | $460 |
| Johnson & Johnson Surgical Vision, Inc. | 4 | $381 |
| Genentech USA, Inc. | 12 | $358 |
| Novartis | 13 | $346 |
| Astellas Pharma US Inc | 6 | $272 |
| Regeneron Healthcare Solutions, Inc. | 9 | $233 |
| Biotissue Holdings Inc. | 2 | $197 |
| Heidelberg Engineering, Inc. | 1 | $184 |
| Alcon | 2 | $166 |
| Optos, Inc. | 2 | $160 |
| Mallinckrodt Enterprises LLC | 2 | $145 |
| Rxsight Inc | 1 | $143 |
| Apellis Pharmaceuticals, Inc. | 2 | $143 |
| Regeneron | 1 | $135 |
| Alimera Sciences, Inc. | 5 | $134 |
| Mallinckrodt Hospital Products Inc. | 2 | $128 |
| Bausch & Lomb Americas Inc. | 5 | $95 |
| Carl Zeiss Meditec USA, Inc. | 1 | $64 |
| Biogen | 2 | $33 |
| Astellas Pharma Global Development | 1 | $27 |
| Amgen | 1 | $22 |
| Tearlab Corp | 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.
- PANORAMIC OPHTHALMOSCOPE$289
- OCT OPHTHALMOSCOPE$289
- Spectralis$184
- NFC-700$144
- RXSIGHT CONTACT LENS$143
- RXSIGHT INJECTOR CARTRIDGE$143
- RXSIGHT INJECTOR HANDPIECE$143
- RXSIGHT LIGHT DELIVERY DEVICE (LDD)$143
- LIGHT ADJUSTABLE LENS (LAL)$143
- VABYSMO$141
- Clareon$138
- EYLEA$135
- Izervay$130
- Tecnis Simplicity$122
- Tecnis IOL$122
- ACTHAR$119
- Humira$110
- Tecnis Multifocal Family of 1-piece IOLS$101
How this compares
$3,842 in reported general payments places this provider in the 60th percentile of 108 retina specialist providers in Texas.
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 | 69 | $3,804 |
| Ketorolac Tromethamine | 14 | $340 |
| MoxifloxacinMoxifloxacin Hcl | 23 | $330 |
| Ofloxacin | 15 | $169 |
Paid to pharmacies, not to this prescriber.
Other retina specialist in Austin
- Brian BergerAustin$36K
- Cecilia SanchezAustin$3K
- Courtney CrawfordBurleson$342K
- Jeremiah BrownSchertz$339K
- Victor GonzalezMcAllen$335K
- Judy KimDallas$256K
- Emmanuel ChangBellaire$254K
- Ting Fang SuarezBellaire$156K
- Hemang PandyaPlano$153K
- Margaret RunnerSouthlake$71K
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.