Darla Chapman
Nurse Practitioner · Seattle, WANPI 1881046548
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 2 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement.
Across 2 payments — averaging $61.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Lilly USA, LLC$73
- Otsuka Pharmaceutical Development & Commercialization, Inc.$50
Across 27 payments — averaging $20,024 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Eisai Inc.$541K
What the payments were for
- Food & beverage$123100%
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 |
|---|---|---|
| Lilly USA, LLC | 1 | $73 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $50 |
How this compares
$123 in reported general payments places this provider in the 65th percentile of 2,466 nurse practitioner providers in Washington.
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 |
|---|---|---|
| Rivastigmine | 51 | $7,420 |
| Memantine Hcl | 122 | $4,681 |
| Galantamine ErGalantamine Hbr | 32 | $3,617 |
| Donepezil Hcl | 368 | $2,991 |
| Escitalopram Oxalate | 132 | $1,328 |
| Quetiapine Fumarate | 58 | $859 |
| Mirtazapine | 30 | $503 |
| Sertraline Hcl | 64 | $456 |
| Trazodone Hcl | 15 | $161 |
| Duloxetine Hcl | 12 | $148 |
| Risperidone | 16 | $126 |
| Lorazepam | 12 | $25 |
Paid to pharmacies, not to this prescriber.
Other nurse practitioner in Seattle
- Olga VoloshinaSeattle$279K
- Sandra ChristensenSeattle$244K
- Sonia GlennieSeattle$78K
- Lia Duque Estrada de BarrosSeattle$43K
- Vanessa DunleavySeattle$34K
- Lyne Schaefer AlfonseSeattle$18K
- Amy PerezSeattle$14K
- Mei Kuen Erica ToSeattle$13K
- Omeid HeidariSeattle$13K
- Cayla AlexanderSeattle$13K
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.