Raul Guevara, MD
Neuro-ophthalmology · Merrillville, INNPI 1194861054
Payments from drug & device makers
Across 48 payments — averaging $17.83 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sunovion Pharmaceuticals Inc.$321
- Amgen$192
- Genentech USA, Inc.$52
- Neurelis, Inc.$37
- Argenx US, Inc.$37
- AbbVie$36
- plus $182 from 10 others
What the payments were for
- Food & beverage$83898%
- Education$182%
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 |
|---|---|---|
| Sunovion Pharmaceuticals Inc. | 23 | $321 |
| Amgen(2 entities) | 5 | $192 |
| Genentech USA, Inc. | 3 | $52 |
| Neurelis, Inc. | 2 | $37 |
| Argenx US, Inc. | 2 | $37 |
| AbbVie | 2 | $36 |
| Johnson & Johnson | 2 | $31 |
| Catalyst Pharmaceuticals, Inc. | 1 | $26 |
| AstraZeneca | 1 | $23 |
| EMD Serono, Inc. | 1 | $19 |
| Biogen | 1 | $18 |
| Novartis | 1 | $15 |
| Cala Health, Inc. | 1 | $15 |
| Bausch Health US, LLC | 1 | $12 |
| Boston Scientific | 1 | $12 |
| Neurocrine Biosciences, Inc. | 1 | $11 |
How this compares
Too few neuro-ophthalmology providers in Indianato place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| Gamunex-CImmune Globul G/Gly/Iga Avg 46 | 81 | $570,064 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 16 | $256,035 |
| Gammagard LiquidImmun Glob G(Igg)/Gly/Iga Ov50 | 36 | $162,919 |
| Pyridostigmine Bromide | 81 | $4,271 |
| Mycophenolate Mofetil | 41 | $3,016 |
| Acetazolamide ErAcetazolamide | 21 | $2,377 |
| Gabapentin | 36 | $1,077 |
| Topiramate | 15 | $152 |
| Prednisone | 14 | $36 |
| Lorazepam | 21 | $22 |
Paid to pharmacies, not to this prescriber.
Other neuro-ophthalmology in Merrillville
- Kevin LaiCarmel$651
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.