Christien Eileen Olewniczak, NURSE PRACTITIONER
NPI 1609498658ActiveIndividual· Nurse Practitioner, Family· Lancaster, NY
Nurse Practitioner, Family (NURSE PRACTITIONER) with Wny Medical PC and 1 other group, practicing in Lancaster, New York. Their prescriptions cost Medicare Part D more than their services did: $804,598 for 5,063 claims, against $68,283 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 19 companies reporting payments in 2025, $4,318 in all, mostly food and beverage.
Overview
| NPI | 1609498658 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NURSE PRACTITIONER |
| Sole proprietor | No |
| NPI issued | May 13, 2020 |
| Last updated in NPPES | Jul 14, 2023 |
| Certified by provider | Jul 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | F345430-01 | 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 - Nurse Practitioner (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 230 |
|---|---|
| Services billed | 1,152 across 29 procedure codes |
| Paid by Medicare | $68,283 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,063 · 6,892 30-day fills |
|---|---|
| Patients | 417 |
| Total drug cost | $804,598 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Wny Medical PCAmherst, NY · 43 clinicians
- County of NiagaraLockport, NY · 4 clinicians
Industry payments (Open Payments)
- 2025$4,318 · 171 payments from 19 companies
- 2024$3,582 · 122 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $867.90 | 33 |
| Vanda Pharmaceuticals Inc. | $654.42 | 20 |
| Teva Pharmaceuticals USA, Inc. | $606.25 | 32 |
| Abbvie Inc. | $385.53 | 32 |
| Otsuka America Pharmaceutical, Inc. | $378.54 | 11 |
What the 2025 payments were for
- Food and Beverage$4,315 · 170 payments
- Education$3.79 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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