Larissa Michele Olson, PA
NPI 1558839043ActiveIndividual· Physician Assistant· Middlebury, VT
Physician Assistant (PA) with Mainehealth and 2 other groups, practicing in Middlebury, Vermont. Mostly services rather than prescriptions: Medicare paid $8,178 for 79 patients in 2024, with only 16 Part D claims. Lists Mainehealth Franklin Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1558839043 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Nov 2, 2018 |
| Last updated in NPPES | Dec 18, 2024 |
| Certified by provider | Dec 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0550031467 | VT |
| Physician Assistant | 363A00000X | PA2421 | ME |
| Physician Assistant | 363A00000X | 1947 | NH |
| Physician Assistant, Medical | 363AM0700X | 023278 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (ME); Practitioner - Physician Assistant (NH); Practitioner - Physician Assistant (NY); Practitioner - Physician Assistant (VT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 79 |
|---|---|
| Services billed | 107 across 11 procedure codes |
| Paid by Medicare | $8,178 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 18 30-day fills |
|---|---|
| Total drug cost | $926.49 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- MainehealthPortland, ME · 2,633 clinicians
- Memorial HospitalNorth Conway, NH · 78 clinicians
- Rumford HospitalRumford, ME · 39 clinicians
Hospital affiliations
- Mainehealth Franklin HospitalFarmington, ME
- Memorial Hospital, theNorth Conway, NH
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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