Katelyn Isherwood
Family Medicine · Derry, NHNPI 1639890502
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.3% of the total across 136 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 28 manufacturers reported payments, led by AbbVie at 28.3% of the total. Among family medicine clinicians in NH 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 136 payments — averaging $22.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$851
- Teva Pharmaceuticals USA, Inc.$378
- Lundbeck LLC$236
- TG Therapeutics, Inc.$217
- Jazz Pharmaceuticals Inc.$160
- Harmony Biosciences LLC$121
- plus $1K from 22 others
What the payments were for
- Food & beverage$2,86895%
- Education$1435%
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 |
|---|---|---|
| AbbVie | 38 | $851 |
| Teva Pharmaceuticals USA, Inc. | 23 | $378 |
| Lundbeck LLC | 17 | $236 |
| TG Therapeutics, Inc. | 6 | $217 |
| Jazz Pharmaceuticals Inc. | 5 | $160 |
| Harmony Biosciences LLC | 2 | $121 |
| Amneal Pharmaceuticals LLC | 5 | $114 |
| Pfizer | 5 | $110 |
| UCB, Inc. | 4 | $108 |
| Argenx US, Inc. | 3 | $67 |
| Biogen | 3 | $67 |
| ANI Pharmaceuticals, Inc. | 2 | $61 |
| Merz Pharmaceuticals, LLC | 2 | $56 |
| Otsuka America Pharmaceutical, Inc. | 2 | $49 |
| Ipsen Biopharmaceuticals, Inc | 2 | $43 |
| Genentech USA, Inc. | 2 | $43 |
| Lilly USA, LLC | 2 | $41 |
| Cycle Pharmaceuticals Inc | 2 | $38 |
| Axsome Therapeutics, Inc. | 1 | $33 |
| Mallinckrodt Hospital Products Inc. | 2 | $32 |
| AstraZeneca | 1 | $31 |
| Catalyst Pharmaceuticals, Inc. | 1 | $26 |
| Inspire Medical Systems, Inc. | 1 | $25 |
| Novartis | 1 | $24 |
| Sanofi | 1 | $22 |
| Neurocrine Biosciences, Inc. | 1 | $22 |
| Invivyd Inc | 1 | $21 |
| Bristol Myers Squibb | 1 | $14 |
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.
- BRIUMVI$101
How this compares
$3,011 in reported general payments places this provider in the 90th percentile of 397 family medicine providers in New Hampshire.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Donepezil Hcl | 11 | $98 |
Paid to pharmacies, not to this prescriber.
Other family medicine in Derry
- Robyn StewartDerry$8K
- Douglas DrefferDerry$5K
- John WheelerDerry$5K
- John DaleyDerry$5K
- Michael MaroldaDerry$5K
- Sarah MuraiDerry$2K
- Cristi EgenolfDerry$2K
- Kristin BroughtonDerry$1K
- Scott LowDerry$1K
- Mark BallentynePortsmouth$135K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.