Robert Lowenthal, MD
Ophthalmology · Springfield, ILNPI 1871509323
Payments from drug & device makers
Across 57 payments — averaging $537.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ultradent Products Inc$29K
- Regeneron Healthcare Solutions, Inc.$616
- Genentech USA, Inc.$594
- Apellis Pharmaceuticals, Inc.$329
- Astellas Pharma US Inc$272
- Ocular Therapeutix, Inc.$140
- plus $177 from 3 others
What the payments were for
- Speaking & faculty fees$28,52093%
- Food & beverage$2,1297%
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 |
|---|---|---|
| Ultradent Products Inc | 11 | $28,520 |
| Regeneron Healthcare Solutions, Inc. | 7 | $616 |
| Genentech USA, Inc. | 22 | $594 |
| Apellis Pharmaceuticals, Inc. | 3 | $329 |
| Astellas Pharma US Inc | 9 | $272 |
| Ocular Therapeutix, Inc. | 1 | $140 |
| Regeneron | 1 | $88 |
| AbbVie | 2 | $73 |
| Thea Pharma Inc. | 1 | $16 |
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
$30,649 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 |
|---|---|---|
| IlevroNepafenac | 11 | $5,206 |
| Difluprednate | 11 | $884 |
| Ketorolac Tromethamine | 33 | $574 |
| Prednisolone Acetate | 13 | $564 |
| ErythromycinErythromycin Base | 12 | $106 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Springfield
- Lisa NijmSpringfield$1.9M
- Ramanath BhandariSpringfield$1.2M
- Sandra YehSpringfield$197K
- Veeral ShethOak Forest$14.8M
- Seenu HariprasadChicago$2.3M
- Manjot GillChicago$1.4M
- Mitchell JacksonLake Villa$1.4M
- Kathleen MornoNorth Riverside$1.2M
- Amani FawziChicago$864K
- Navaneet Chailert BorisuthRock Island$737K
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.