Scott Guess, MD
Ophthalmology · Missoula, MTNPI 1861543712
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.4% of the total across 29 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 6 manufacturers reported payments, led by Regeneron Healthcare Solutions, Inc. at 48.5% of the total. Reporting peaked in 2023 at $303 and has fallen 54.0% since, to $139 in 2025.
Across 29 payments — averaging $30.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$432
- Astellas Pharma US Inc$150
- Alcon$131
- AbbVie$80
- Genentech USA, Inc.$76
- Harrow Eye, LLC$22
What the payments were for
- Food & beverage$85095%
- Education$415%
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 |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | 11 | $432 |
| Astellas Pharma US Inc | 2 | $150 |
| Alcon | 5 | $131 |
| AbbVie | 5 | $80 |
| Genentech USA, Inc. | 5 | $76 |
| Harrow Eye, LLC | 1 | $22 |
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
$890 in reported general payments places this provider in the 70th percentile of 52 ophthalmology providers in Montana.
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 | 108 | $3,552 |
| Difluprednate | 26 | $2,906 |
| Latanoprost | 110 | $1,428 |
| Ciprofloxacin Hcl | 62 | $598 |
| Timolol Maleate | 58 | $480 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 29 | $349 |
| Brimonidine Tartrate | 70 | $316 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Missoula
- Jefferson BerrymanMissoula$11K
- Jacek KotowskiMissoula$981
- Roger FurlongMissoula$723
- Chad NedrudMissoula$659
- David McCannMissoula$403
- Rick NeumeisterMissoula$140
- Todd MurdockMissoula$136
- Brian SippyMissoula$53
- Michael PetersonMissoula$29
- Richelle StillwagonMissoula$24
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.