Cassandra Os, NP
NPI 1285258863ActiveIndividual· Nurse Practitioner· Berlin, NH
Nurse Practitioner (NP) with Select Physical Therapy Holdings Inc and 1 other group, practicing in Berlin, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $196,212 for 2,336 claims, against $12,722 paid for services in 2024. Lists St Mary's Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1285258863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | May 30, 2020 |
| Last updated in NPPES | Jun 9, 2026 |
| Certified by provider | Jun 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | RN2309397 | MA |
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 (MA); Practitioner - Nurse Practitioner (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 233 across 4 procedure codes |
| Paid by Medicare | $12,722 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,336 · 2,439 30-day fills |
|---|---|
| Patients | 109 |
| Total drug cost | $196,212 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Select Physical Therapy Holdings IncClarksville, TN · 2,024 clinicians
- Community Clinical Services IncLewiston, ME · 14 clinicians
Hospital affiliation
- St Mary's Regional Medical CenterLewiston, ME
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records