Quick answers
- Which hospitals does Dorene Zerfas work at?
- Medicare's official clinician data lists Dorene Zerfas at 3 hospitals: Ascension SE Wisconsin Hospital, Community Memorial Hospital and St Josephs Community Hospital West Bend. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dorene Zerfas see patients?
- Medicare's clinician data lists 5 practice locations, including Franklin, WI, Wauwatosa, WI and West Bend, WI. Call before your visit to confirm the address.
- What is Dorene Zerfas's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Dorene Zerfas accept Medicare assignment?
- Yes. Medicare's clinician data says Dorene Zerfas 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 Dorene Zerfas?
- (414) 325-4700, as listed in official Medicare / NPI Registry data.
- What is Dorene Zerfas's NPI number?
- 1427299973. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dorene Zerfas works
Medicare's Facility Affiliation Data lists Dorene Zerfas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · CCN 520136
- Community Memorial HospitalMenomonee Falls, WI · Acute Care Hospital · CCN 520103
- St Josephs Community Hospital West BendWest Bend, WI · Acute Care Hospital · CCN 520063
Practice locations
Addresses where Dorene Zerfas is enrolled with Medicare (CMS data updated 2026-10-02).
- 10101 S 27th StFranklin, WI 53132 (414) 325‑4700
- 201 N Mayfair RdWauwatosa, WI 53226
- 3200 Pleasant Valley RdWest Bend, WI 53095 (262) 836‑7300
- 3237 S 16th StMilwaukee, WI 53215 (414) 647‑5069
- 3237 S 16th St, Suite 210Milwaukee, WI 53215 (855) 476‑3428
Group practices
Medicare enrollment lists Dorene Zerfas as a member of these groups (CMS data updated 2026-10-02).
- Froedtert Andthe Medical College of Wisconsin Community Physicians Inc1,285 clinicians in the group
- Ascension Medical Group-Southeast Wisconsin Inc545 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Franklin
Clinicians with the same Medicare primary specialty in Franklin, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427299973 |
| 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