Maria I. Kostrzewski, M.D.
NPI 1629067814ActiveIndividual· Psychiatry & Neurology, Psychiatry· Toledo, OH
Psychiatry & Neurology, Psychiatry (M.D.) with Zepf Center, practicing in Toledo, Ohio. Their prescriptions cost Medicare Part D more than their services did: $746,638 for 3,270 claims, against $7,424 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 2 companies reporting payments in 2025, $134.58 in all, mostly food and beverage.
Overview
| NPI | 1629067814 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 19, 2005 |
| Last updated in NPPES | Sep 12, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 35076359K | OH |
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 - Psychiatry (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 101 across 5 procedure codes |
| Paid by Medicare | $7,424 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,270 · 3,577 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $746,638 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1974 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- Zepf CenterToledo, OH · 42 clinicians
Industry payments (Open Payments)
- 2025$134.58 · 2 payments from 2 companies
- 2024$22.78 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $109.61 | 1 |
| Neurocrine Biosciences, Inc. | $24.97 | 1 |
What the 2025 payments were for
- Food and Beverage$134.58 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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