Tysen Timmer, MD
Orthopaedic Surgery · Great Falls, MTNPI 1134614019
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $9,757 of the $15,944 with a category attached, or 61.2%. Zimmer Biomet accounts for 95.7% of it on its own, with 3 other manufacturers making up the rest. 2025 is the largest year on record at $6,934, more than ten times the $17 reported in 2022.
Across 93 payments — averaging $171.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$15K
- Stryker$425
- Johnson & Johnson$241
- Mallinckrodt Hospital Products Inc.$23
What the payments were for
- Travel & lodging$9,75761%
- Food & beverage$5,66436%
- Education$5223%
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 |
|---|---|---|
| Zimmer Biomet | 84 | $15,254 |
| Stryker | 6 | $425 |
| Johnson & Johnson | 2 | $241 |
| Mallinckrodt Hospital Products Inc. | 1 | $23 |
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.
- Oxford$2,861
- Persona$2,406
- Avenir$2,342
- ROSA$1,417
- Comprehensive Shoulder System$267
- ACTIS$241
- ActivBraid$150
- ORTHOLOC 3DI$133
- T2$133
- VARIAX$133
- GAMMA$133
- Avitus Bone Harvester$132
- TAPESTRY$123
- Anatomical Shoulder Bigliani/Flatow$117
How this compares
$15,944 in reported general payments places this provider in the 85th percentile of 76 orthopaedic surgery 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 |
|---|---|---|
| Meloxicam | 20 | $33 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Great Falls
- Jace BullardGreat Falls$29K
- Michael HeldGreat Falls$6K
- Michael BryantGreat Falls$2K
- Gregg PikeGreat Falls$1K
- John AveryGreat Falls$359
- Nicholas BonfilioGreat Falls$313
- Brian DrakeBillings$84K
- Daniel WhitingMissoula$39K
- Daniel DixonMissoula$38K
- Matthew KopplinBillings$35K
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.