Peggy Scharberg Chaffin, APRN
Primary Care · Missoula, MTNPI 1174234769
Payments from drug & device makers
What this record shows
Livanova USA, Inc. accounts for 83.2% of it on its own, with 12 other manufacturers making up the rest. Reporting peaked in 2024 at $2,200 and has fallen 84.4% since, to $342 in 2025. Among primary care clinicians in MT with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 44 payments — averaging $98.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Livanova USA, Inc.$4K
- AbbVie$182
- Catalyst Pharmaceuticals, Inc.$175
- Pfizer$94
- Neurelis, Inc.$43
- Baxter Healthcare$42
- plus $190 from 7 others
What the payments were for
- Travel & lodging$2,56259%
- Food & beverage$1,76541%
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 |
|---|---|---|
| Livanova USA, Inc. | 16 | $3,600 |
| AbbVie | 9 | $182 |
| Catalyst Pharmaceuticals, Inc. | 2 | $175 |
| Pfizer | 4 | $94 |
| Neurelis, Inc. | 2 | $43 |
| Baxter Healthcare | 1 | $42 |
| Jazz Pharmaceuticals Inc. | 2 | $41 |
| SK Life Science, Inc. | 2 | $36 |
| UCB, Inc. | 2 | $35 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $25 |
| Biogen | 1 | $20 |
| Eisai Inc. | 1 | $18 |
| Merz Pharmaceuticals, LLC | 1 | $15 |
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.
- VNS Therapy$3,454
- Fycompa$149
How this compares
$4,326 in reported general payments places this provider in the 90th percentile of 20 primary care 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 |
|---|---|---|
| SkyclarysOmaveloxolone | 14 | $448,232 |
| Lacosamide | 82 | $14,322 |
| Levetiracetam | 91 | $3,254 |
| Primidone | 135 | $2,167 |
| Zonisamide | 38 | $1,726 |
| Lamotrigine | 80 | $1,533 |
| Galantamine Hbr | 15 | $1,409 |
| Carbamazepine ErCarbamazepine | 13 | $1,230 |
| Entacapone | 16 | $1,099 |
| Divalproex Sodium | 26 | $848 |
| AmantadineAmantadine Hcl | 11 | $675 |
| Oxcarbazepine | 21 | $651 |
| Donepezil Hcl | 85 | $510 |
| Carbidopa-Levodopa ErCarbidopa/Levodopa | 14 | $385 |
| Gabapentin | 40 | $347 |
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 |
|---|---|---|
| BiogenSkyclarys | $20 | $448,23214 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. Against peers, this provider's reported payments sit in the 90th percentile of 20 primary care providers in Montana.
Other primary care in Missoula
- Kinsey FisherMissoula$737
- Stacey RiffeMissoula$195
- Katie BrennanHelena$183K
- Erika DuffyBillings$4K
- Aran MacartneyButte$2K
- Rachael AlsburyKalispell$580
- Darcy ZantoFort Benton$530
- Courtney FunderburkHavre$283
- Patricia KellyArlee$146
- Matthew AbrahamsonHamilton$73
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.