Thomas Addison, MD
Geriatric Medicine · Great Falls, MTNPI 1871594754
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 45 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 17 manufacturers, the largest accounting for just 17.1% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $435 and has fallen 91.1% since, to $39 in 2025.
Across 45 payments — averaging $16.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$124
- Merck$115
- GSK$97
- Amgen$86
- Novartis$43
- Pfizer$38
- plus $219 from 11 others
What the payments were for
- Food & beverage$723100%
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 7 | $124 |
| Merck | 9 | $115 |
| GSK | 5 | $97 |
| Amgen | 4 | $86 |
| Novartis | 3 | $43 |
| Pfizer | 3 | $38 |
| Johnson & Johnson(2 entities) | 3 | $38 |
| Lantheus Medical Imaging, Inc. | 2 | $35 |
| Xeris Pharmaceuticals, Inc. | 1 | $24 |
| Lundbeck LLC | 1 | $21 |
| Corcept Therapeutics | 1 | $19 |
| AstraZeneca | 1 | $15 |
| AbbVie | 1 | $14 |
| Bristol Myers Squibb | 1 | $14 |
| Exact Sciences | 1 | $14 |
| Sanofi Pasteur Inc. | 1 | $13 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $13 |
How this compares
Too few geriatric medicine providers in Montanato 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 |
|---|---|---|
| EliquisApixaban | 406 | $155,034 |
| XareltoRivaroxaban | 112 | $89,790 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 35 | $30,125 |
| JanuviaSitagliptin Phosphate | 94 | $19,459 |
| GlatopaGlatiramer Acetate | 11 | $19,378 |
| OzempicSemaglutide | 14 | $16,511 |
| MyrbetriqMirabegron | 45 | $14,511 |
| NuedextaDextromethorphan Hbr/Quinidine | 14 | $14,118 |
| TradjentaLinagliptin | 48 | $13,247 |
| Breo ElliptaFluticasone/Vilanterol | 21 | $10,249 |
| Victoza 3-PakLiraglutide | 11 | $9,513 |
| Paliperidone ErPaliperidone | 14 | $8,253 |
| NamzaricMemantine Hcl/Donepezil Hcl | 25 | $7,173 |
| Mirtazapine | 366 | $7,143 |
| CreonLipase/Protease/Amylase | 19 | $6,889 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| PfizerEliquis | $38 | $155,034406 claims |
| Johnson & JohnsonXarelto | $38 | $89,790112 claims |
| GSKTrelegy Ellipta, Breo Ellipta | $97 | $40,37456 claims |
| MerckJanuvia | $115 | $19,45994 claims |
| AbbVieNamzaric, Creon | $14 | $14,06244 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. There are too few geriatric medicine providers in Montanaon file to place this against a meaningful peer group, so we don't.
Other geriatric medicine in Great Falls
- Kyra CarpenterGreat Falls$31
- Rose PicchiGreat Falls$25
- John MolloyGreat Falls$12
- Patricia CoonBillings$2K
- Irene LohkampBillings$78
- Roman HendricksonSheridan$77
- Whitney HasemanMissoula$45
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.