Quick answers
- Which hospitals does Magdalena Flejsierowicz work at?
- Medicare's official clinician data lists Magdalena Flejsierowicz at 1 hospital: Aurora St Lukes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Magdalena Flejsierowicz see patients?
- Medicare's clinician data lists 6 practice locations, including Milwaukee, WI and Mequon, WI. Call before your visit to confirm the address.
- What is Magdalena Flejsierowicz's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Magdalena Flejsierowicz accept Medicare assignment?
- Yes. Medicare's clinician data says Magdalena Flejsierowicz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Magdalena Flejsierowicz?
- (414) 219-3056, as listed in official Medicare / NPI Registry data.
- What is Magdalena Flejsierowicz's NPI number?
- 1144246737. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Magdalena Flejsierowicz works
Medicare's Facility Affiliation Data lists Magdalena Flejsierowicz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · CCN 520138
Practice locations
Addresses where Magdalena Flejsierowicz is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1020 N 12th StMilwaukee, WI 53233 (414) 219‑3056
- 12203 N Corporate PkwyMequon, WI 53092
- 2900 W Oklahoma AveMilwaukee, WI 53215 (414) 649‑6000
- 3003 W Good Hope RdMilwaukee, WI 53209 (414) 352‑3100
- 945 N 12th StMilwaukee, WI 53233 (414) 219‑2000
Group practices
Medicare enrollment lists Magdalena Flejsierowicz as a member of these groups (CMS data updated 2026-10-02).
- Aurora Medical Group, Inc.3,813 clinicians in the group
- Aurora Advanced Healthcare, Inc.1,124 clinicians in the group
- Aurora Health Care Metro, Inc.75 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Milwaukee
Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144246737 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians