Marianna V. Sieracki, PA-C
NPI 1659786374ActiveIndividual· Physician Assistant· Fond Du Lac, WI
Physician Assistant (PA-C) with Thedacare, Incorporated, practicing in Fond Du Lac, Wisconsin. In 2024 Medicare paid $4,513 for 46 patients, and Part D covered 111 of their prescriptions, 86% of them generic. Lists Thedacare Regional Med Ctr - Neenah and 1 other hospital as hospital affiliations.
Overview
| NPI | 1659786374 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 23, 2014 |
| Last updated in NPPES | Jun 10, 2026 |
| Certified by provider | Jun 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 3334 | WI |
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 - Physician Assistant (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 56 across 9 procedure codes |
| Paid by Medicare | $4,513 |
Part D prescriptions in 2024
| Prescriptions (claims) | 111 · 129 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $6,407 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Thedacare, IncorporatedWaupaca, WI · 647 clinicians
Hospital affiliations
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
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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All 18 physician assistants in Fond Du Lac · All physician assistants in Wisconsin