Berilonson Osiro, MD
Internal Medicine · Great Falls, MTNPI 1356748859
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 21 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 10 manufacturers reported payments, led by GSK at 27.8% of the total. Reporting peaked in 2019 at $222 and has fallen 86.5% since, to $30 in 2023.
Across 21 payments — averaging $16.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$94
- Merck$76
- E.r. Squibb & Sons, L.L.C.$45
- Novo Nordisk$32
- Amgen$21
- Radius Health, Inc.$19
- plus $53 from 4 others
What the payments were for
- Food & beverage$340100%
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 |
|---|---|---|
| GSK | 5 | $94 |
| Merck | 5 | $76 |
| E.r. Squibb & Sons, L.L.C. | 3 | $45 |
| Novo Nordisk | 2 | $32 |
| Amgen | 1 | $21 |
| Radius Health, Inc. | 1 | $19 |
| Genentech USA, Inc. | 1 | $15 |
| AstraZeneca | 1 | $14 |
| Johnson & Johnson | 1 | $13 |
| Pfizer | 1 | $11 |
How this compares
$340 in reported general payments places this provider in the 80th percentile of 244 internal medicine 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 |
|---|---|---|
| Metoprolol Succinate | 11 | $106 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 15 | $103 |
| Pantoprazole Sodium | 11 | $78 |
| Furosemide | 17 | $57 |
| ClopidogrelClopidogrel Bisulfate | 11 | $51 |
| Prednisone | 18 | $47 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Great Falls
- Stacy KingslandGreat Falls$5K
- Nicholas TrumGreat Falls$2K
- Bradford BergmanGreat Falls$2K
- Steven ChrzanowskiGreat Falls$2K
- Scott BurkGreat Falls$1K
- Kathleen BlairGreat Falls$1K
- Katherine ZitelloGreat Falls$682
- Eve GerasimouGreat Falls$661
- James LeganGreat Falls$312
- Hanna BroniewskaGreat Falls$193
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.