Michal Jan Tomaszewicz, PMHNP
NPI 1326496514ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Wilmington, DE
Nurse Practitioner, Psych/Mental Health (PMHNP) with Serene Minds LLC, practicing in Wilmington, Delaware. Their prescriptions cost Medicare Part D more than their services did: $300,734 for 2,480 claims, against $21,676 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 8 companies reporting payments in 2025, $565.92 in all, mostly food and beverage.
Overview
| NPI | 1326496514 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP |
| Sole proprietor | Yes |
| NPI issued | May 27, 2016 |
| Last updated in NPPES | May 27, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | L8-0000143 | DE |
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 (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 81 |
|---|---|
| Services billed | 492 across 9 procedure codes |
| Paid by Medicare | $21,676 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,480 · 4,002 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $300,734 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Serene Minds LLCNewark, DE · 22 clinicians
Industry payments (Open Payments)
- 2025$565.92 · 22 payments from 8 companies
- 2024$501.91 · 22 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $148.38 | 5 |
| E.R. Squibb & Sons, L.L.C. | $104.54 | 3 |
| Axsome Therapeutics, Inc. | $96.85 | 4 |
| Neurocrine Biosciences, Inc. | $77.36 | 3 |
| Alkermes, Inc. | $58.46 | 3 |
What the 2025 payments were for
- Food and Beverage$565.92 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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