Allyson Marie Kornahrens, FNP
NPI 1427573138ActiveIndividual· Nurse Practitioner, Family· Smithtown, NY
Nurse Practitioner, Family (FNP) with Central Suffolk Hospital, practicing in Smithtown, New York. In 2024 Medicare paid $40,594 for 369 patients, and Part D covered 163 of their prescriptions, 87% of them generic. E.R. Squibb & Sons, L.L.C. reported $104.98 in payments in 2025, mostly food and beverage. Lists Peconic Bay Medical Center as a hospital affiliation.
Overview
| NPI | 1427573138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | Yes |
| NPI issued | Aug 3, 2017 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 342166 | NY |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 369 |
|---|---|
| Services billed | 577 across 4 procedure codes |
| Paid by Medicare | $40,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 163 · 169 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $13,556 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Central Suffolk HospitalRiverhead, NY · 95 clinicians
Hospital affiliation
- Peconic Bay Medical CenterRiverhead, NY
Industry payments (Open Payments)
- 2025$104.98 · 4 payments from 1 company
- 2024$470.94 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $104.98 | 4 |
What the 2025 payments were for
- Food and Beverage$104.98 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family nurse practitioners in Smithtown
- 1013402932
- 1043268782
- 1124749130
- 1134752355
- 1255731501
- 1396173258
- 1407579428
- 1699257071
- 1811262199
- 1063032522
- 1669781068
- 1013426261
All 54 family nurse practitioners in Smithtown · All family nurse practitioners in New York