Kathy H. Der, FNP
NPI 1245541325ActiveIndividual· Nurse Practitioner, Family· Lowville, NY
Nurse Practitioner, Family (FNP) in Lowville, New York, licensed in NY, with an NPI issued in June 2010. Their prescriptions cost Medicare Part D more than their services did: $561,146 for 4,927 claims, against $27,726 paid for services in 2024. Pfizer Inc. reported $21.14 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1245541325 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Jun 23, 2010 |
| Last updated in NPPES | Aug 19, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | F336327-1 | 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 | 123 |
|---|---|
| Services billed | 448 across 27 procedure codes |
| Paid by Medicare | $27,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,927 · 11,054 30-day fills |
|---|---|
| Patients | 340 |
| Total drug cost | $561,146 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
- 2025$21.14 · 1 payment from 1 company
- 2024$298.28 · 17 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $21.14 | 1 |
What the 2025 payments were for
- Food and Beverage$21.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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