Quick answers
- Which hospitals does Steven Mazzone work at?
- Medicare's official clinician data lists Steven Mazzone at 3 hospitals: Froedtert Community Hospital, Froedtert Memorial Lutheran Hospital and St Josephs Community Hospital West Bend. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steven Mazzone see patients?
- Medicare's clinician data lists 10 practice locations, including Wauwatosa, WI, West Bend, WI and New Berlin, WI. Call before your visit to confirm the address.
- What is Steven Mazzone's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Steven Mazzone accept Medicare assignment?
- Yes. Medicare's clinician data says Steven Mazzone 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 Steven Mazzone?
- (414) 955-5990, as listed in official Medicare / NPI Registry data.
- What is Steven Mazzone's NPI number?
- 1467982181. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Steven Mazzone works
Medicare's Facility Affiliation Data lists Steven Mazzone at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Froedtert Community HospitalNew Berlin, WI · Acute Care Hospital · CCN 520213
- Froedtert Memorial Lutheran HospitalMilwaukee, WI · Acute Care Hospital · CCN 520177
- St Josephs Community Hospital West BendWest Bend, WI · Acute Care Hospital · CCN 520063
Practice locations
Addresses where Steven Mazzone is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 1155 N Mayfair RdWauwatosa, WI 53226 (414) 955‑5990
- 1700 W Paradise DrWest Bend, WI 53095 (262) 334‑3451
- 3200 Pleasant Valley RdWest Bend, WI 53095 (262) 836‑7300
- 3212 Pleasant Valley RdWest Bend, WI 53095 (262) 334‑6165
- 4805 S Moorland RdNew Berlin, WI 53151 (262) 798‑7200
Group practices
Medicare enrollment lists Steven Mazzone as a member of these groups (CMS data updated 2026-10-02).
- The Medical College of Wisconsin Inc2,115 clinicians in the group
- Froedtert Andthe Medical College of Wisconsin Community Physicians Inc1,285 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Wisconsin →
Other cardiologists in Wauwatosa
Clinicians with the same Medicare primary specialty in Wauwatosa, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467982181 |
| 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