Rachael Ziska, D.O.
NPI 1104204247ActiveIndividual· Internal Medicine· Fitchburg, WI
Internal Medicine (D.O.) in Fitchburg, Wisconsin, trained at University of Minnesota Medical School (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $256,910 for 2,569 claims, against $47,802 paid for services in 2024.
Overview
| NPI | 1104204247 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | May 8, 2015 |
| Last updated in NPPES | Oct 11, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 6950621 | 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 - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 153 |
|---|---|
| Services billed | 1,497 across 106 procedure codes |
| Paid by Medicare | $47,802 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,569 · 5,150 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $256,910 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Group Health Cooperative of South Central WisconsinMadison, WI · 236 clinicians
Hospital affiliations
- Unitypoint Health - MeriterMadison, WI
- University of Wi Hospitals & Clinics AuthorityMadison, 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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