Ellen Marie Boersma, NP
NPI 1265684633ActiveIndividual· Nurse Practitioner· Lakeport, CA
Nurse Practitioner (NP) with Sutter Bay Hospitals, practicing in Lakeport, California. Their prescriptions cost Medicare Part D more than their services did: $608,968 for 242 claims, against $185,003 paid for services in 2024. Janssen Biotech, Inc. was the largest of 11 companies reporting payments in 2025, $380.05 in all, mostly food and beverage. Lists Adventist Health Clearlake and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1265684633 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Oct 16, 2008 |
| Last updated in NPPES | Oct 16, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 18609 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 203 |
|---|---|
| Services billed | 11,276 across 36 procedure codes |
| Paid by Medicare | $185,003 |
Part D prescriptions in 2024
| Prescriptions (claims) | 242 · 310 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $608,968 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay HospitalsLakeport, CA · 48 clinicians
Hospital affiliations
- Adventist Health ClearlakeClearlake, CA
- Adventist Health Ukiah ValleyUkiah, CA
- Sutter Lakeside HospitalLakeport, CA
Industry payments (Open Payments)
- 2025$380.05 · 15 payments from 11 companies
- 2024$1,308 · 51 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $74.32 | 2 |
| Merck Sharp & Dohme LLC | $71.53 | 3 |
| Daiichi Sankyo Inc. | $47.42 | 2 |
| Astellas Pharma US Inc | $34.24 | 1 |
| Stemline Therapeutics Inc. | $33.59 | 1 |
What the 2025 payments were for
- Food and Beverage$380.05 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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