Quick answers
- Which hospitals does Lewis A. Rosenberg work at?
- Medicare's official clinician data lists Lewis A. Rosenberg at 5 hospitals: Ascension All Saints Hospital, Ascension NE Wisconsin - St Elizabeth Campus, Ascension SE Wisconsin Hospital, Ascension St Francis Hospital and Aurora St Lukes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lewis A. Rosenberg see patients?
- Medicare's clinician data lists 1 practice location in Mount Pleasant, WI. Call before your visit to confirm the address.
- What is Lewis A. Rosenberg's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Lewis A. Rosenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Lewis A. Rosenberg 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 Lewis A. Rosenberg?
- (262) 687-5000, as listed in official Medicare / NPI Registry data.
- What is Lewis A. Rosenberg's NPI number?
- 1790974780. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lewis A. Rosenberg works
Medicare's Facility Affiliation Data lists Lewis A. Rosenberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension All Saints HospitalRacine, WI · Acute Care Hospital · CCN 520096
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · CCN 520136
- Ascension St Francis HospitalMilwaukee, WI · Acute Care Hospital · CCN 520078
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · CCN 520138
Practice locations
Addresses where Lewis A. Rosenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 3809 Spring StMount Pleasant, WI 53405 (262) 687‑5000
Group practices
Medicare enrollment lists Lewis A. Rosenberg as a member of this group (CMS data updated 2026-10-02).
- Radiation Oncology Associates Ltd24 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790974780 |
| 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