Elizabeth M. Zak, NP
NPI 1730146655ActiveIndividual· Specialist· North Tonawanda, NY
Specialist (NP) in North Tonawanda, New York, trained at State University of New York at Buffalo School of Medicine (class of 1994). Part D covered 5,034 prescriptions written in 2024, 85% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $667.82 in all, mostly food and beverage.
Overview
| NPI | 1730146655 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Aug 15, 2022 |
| Certified by provider | Aug 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | F331084 | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 5,034 · 12,200 30-day fills |
|---|---|
| Patients | 562 |
| Total drug cost | $542,921 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Olivia Smith-Blackwell MD PCNorth Tonawanda, NY · 2 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Kenmore Mercy HospitalKenmore, NY
- Niagara Falls Memorial Medical CenterNiagara Falls, NY
- Sisters of Charity HospitalBuffalo, NY
Industry payments (Open Payments)
- 2025$667.82 · 40 payments from 14 companies
- 2024$1,010 · 67 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $181.84 | 15 |
| Lilly USA, LLC | $73.11 | 4 |
| Glaxosmithkline, LLC. | $66.44 | 4 |
| Insulet Corporation | $65.22 | 3 |
| Abbott Laboratories | $49.94 | 2 |
What the 2025 payments were for
- Food and Beverage$667.82 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 Specialist providers in North Tonawanda · All Specialist providers in New York