Renata N. Mazzei -Klokiw, MD
NPI 1073583738ActiveIndividual· Family Medicine· Clifton Park, NY
Family Medicine (MD) with Ellis Hospital, practicing in Clifton Park, New York. Their prescriptions cost Medicare Part D more than their services did: $371,247 for 4,411 claims, against $30,016 paid for services in 2024. Pfizer Inc. was the largest of 22 companies reporting payments in 2025, $2,436 in all, mostly food and beverage. Lists Ellis Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1073583738 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 25, 2006 |
| Last updated in NPPES | Apr 5, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 229963 | 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 - Family Practice (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 430 across 12 procedure codes |
| Paid by Medicare | $30,016 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,411 · 9,961 30-day fills |
|---|---|
| Patients | 393 |
| Total drug cost | $371,247 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Ellis HospitalSchenecctady, NY · 249 clinicians
Hospital affiliations
- Ellis HospitalSchenectady, NY
- Saratoga HospitalSaratoga Springs, NY
- Sunnyview Hospital and Rehabilitation CenterSchenectady, NY
Other facilities
- Eddy Visiting Nurse & Rehab AssociationHome health agency · Troy, NY
- Vna Home HealthHome health agency · Albany, NY
Industry payments (Open Payments)
- 2025$2,436 · 145 payments from 22 companies
- 2024$2,551 · 156 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $414.40 | 31 |
| Novo Nordisk Inc | $347.55 | 15 |
| Amgen Inc. | $267.91 | 11 |
| Abbvie Inc. | $259.21 | 22 |
| Astrazeneca Pharmaceuticals LP | $249.27 | 17 |
What the 2025 payments were for
- Food and Beverage$2,436 · 145 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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