Ryan B. Marendiuk, DNP
NPI 1093965816ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Fond Du Lac, WI
Nurse Practitioner, Psych/Mental Health (DNP) in Fond Du Lac, Wisconsin, licensed in WI, HI and ID, with an NPI issued in September 2008. Part D covered 197 prescriptions written in 2024, 98% of them generic.
Overview
| NPI | 1093965816 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP |
| Sole proprietor | No |
| NPI issued | Sep 29, 2008 |
| Last updated in NPPES | May 22, 2023 |
| Certified by provider | May 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 13689-33 | WI |
| Registered Nurse, Administrator | 163WA2000X | 48298 | HI |
| Nurse Practitioner | 363L00000X | 13689-33 | WI |
| Nurse Practitioner, Acute Care | 363LA2100X | 27171 | ID |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 197 · 197 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $11,502 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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