Ellen Boersma, NP
Nurse Practitioner · Lakeport, CANPI 1265684633
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 91.3% of the total across 230 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 40 manufacturers, the largest accounting for just 11.4% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $1,341 and has fallen 71.7% since, to $380 in 2025. Among nurse practitioner clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 230 payments — averaging $22.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$591
- AstraZeneca$479
- GSK$404
- Daiichi Sankyo Inc.$402
- Astellas Pharma US Inc$391
- Johnson & Johnson$390
- plus $3K from 34 others
What the payments were for
- Food & beverage$4,72591%
- Education$4539%
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 |
|---|---|---|
| Merck | 24 | $591 |
| AstraZeneca(2 entities) | 26 | $479 |
| GSK | 17 | $404 |
| Daiichi Sankyo Inc. | 18 | $402 |
| Astellas Pharma US Inc | 11 | $391 |
| Johnson & Johnson | 14 | $390 |
| Eisai Inc. | 14 | $287 |
| Bristol Myers Squibb | 13 | $224 |
| Amgen | 9 | $216 |
| Pfizer | 10 | $216 |
| Genentech USA, Inc. | 10 | $197 |
| E.r. Squibb & Sons, L.L.C. | 10 | $190 |
| Takeda Pharmaceuticals U.S.A., Inc. | 6 | $166 |
| Incyte Corporation | 5 | $124 |
| Lilly USA, LLC | 5 | $105 |
| Stemline Therapeutics Inc. | 4 | $97 |
| Rigel Pharmaceuticals, Inc. | 4 | $75 |
| Sanofi | 3 | $74 |
| Epizyme, Inc. | 3 | $68 |
| AbbVie | 3 | $62 |
| Sumitomo Pharma America, Inc. | 2 | $38 |
| Saluda Medical Americas, Inc. | 1 | $28 |
| Beigene USA, Inc. | 1 | $27 |
| Kyowa Kirin, Inc. | 1 | $27 |
| Alnylam Pharmaceuticals Inc. | 1 | $27 |
| EMD Serono, Inc. | 1 | $25 |
| Servier Pharmaceuticals LLC | 1 | $24 |
| Clovis Oncology, Inc. | 1 | $24 |
| Myriad Genetic Laboratories, Inc. | 1 | $22 |
| Tolmar Pharmaceuticals, Inc. | 1 | $19 |
| Morphosys, US Inc. | 1 | $19 |
| Puma Biotechnology, Inc. | 1 | $17 |
| Pharmacosmos Therapeutics Inc. | 1 | $17 |
| Bayer | 1 | $17 |
| Acrotech Biopharma Inc. | 1 | $17 |
| Novocure Inc. | 1 | $16 |
| Array Biopharma Inc | 1 | $15 |
| Gilead | 1 | $15 |
| Springworks Therapeutics, Inc. | 1 | $15 |
| Iovance Biotherapeutics, Inc. | 1 | $14 |
How this compares
$5,177 in reported general payments places this provider in the 95th percentile of 6,779 nurse practitioner providers in California.
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 |
|---|---|---|
| Morphine Sulfate ErMorphine Sulfate | 11 | $574 |
| Anastrozole | 20 | $248 |
| Gabapentin | 13 | $108 |
| Prednisone | 12 | $40 |
Paid to pharmacies, not to this prescriber.
Other nurse practitioner in Lakeport
- Rhonda HewittStanford$917K
- Linda TrinhIrvine$884K
- Denise SinagaNorthridge$728K
- Debbie TaySanta Monica$642K
- Joe GorelickCampbell$638K
- Lynsey LakinArcadia$540K
- Kelly ChoiRancho Cucamonga$483K
- Hamta ZareStanford$428K
- Shawna ChrismanRoseville$425K
- Angelina CollinsSan Diego$356K
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.