Larisa Ann Gillern, PHYSICIAN ASSISTANT
NPI 1639793557ActiveIndividual· Physician Assistant, Surgical· Greenwich, CT
Physician Assistant, Surgical (PHYSICIAN ASSISTANT) in Greenwich, Connecticut, with an NPI issued in June 2020. Part D covered 101 prescriptions written in 2024, 97% of them generic.
Overview
| NPI | 1639793557 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHYSICIAN ASSISTANT |
| Sole proprietor | Yes |
| NPI issued | Jun 5, 2020 |
| Last updated in NPPES | Oct 14, 2025 |
| Certified by provider | Oct 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | — | — |
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 - Physician Assistant (CT) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 101 · 103 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $2,650 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
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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All 19 surgical physician assistants in Greenwich · All surgical physician assistants in Connecticut