Quick answers
- Which hospitals does Heather B. Breen work at?
- Medicare's official clinician data lists Heather B. Breen at 3 hospitals: Marshfield Medical Center - Beaver Dam (MMC-BD), Oconomowoc Memorial Hospital and Waukesha Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Heather B. Breen see patients?
- Medicare's clinician data lists 5 practice locations, including Mukwonago, WI, Beaver Dam, WI and Waukesha, WI. Call before your visit to confirm the address.
- What is Heather B. Breen's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Heather B. Breen accept Medicare assignment?
- Medicare's clinician data says Heather B. Breen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Heather B. Breen?
- (262) 928-0620, as listed in official Medicare / NPI Registry data.
- What is Heather B. Breen's NPI number?
- 1740547702. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Heather B. Breen works
Medicare's Facility Affiliation Data lists Heather B. Breen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marshfield Medical Center - Beaver Dam (MMC-BD)Beaver Dam, WI · Acute Care Hospital · CCN 520076
- Oconomowoc Memorial HospitalOconomowoc, WI · Acute Care Hospital · CCN 520062
- Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · CCN 520008
Practice locations
Addresses where Heather B. Breen is enrolled with Medicare (CMS data updated 2026-10-02).
- 240 Maple AveMukwonago, WI 53149 (262) 928‑0620
- 705 S University Ave, Mmc Beaver Dam Medical OfficesBeaver Dam, WI 53916 (920) 887‑7181
- 707 S University Ave, Mmc Beaver Dam HospitalBeaver Dam, WI 53916 (920) 887‑7181
- 725 American AveWaukesha, WI 53188 (262) 928‑5400
- 791 Summit AveOconomowoc, WI 53066 (262) 560‑4544
Group practices
Medicare enrollment lists Heather B. Breen as a member of these groups (CMS data updated 2026-10-02).
- Beaver Dam Community Hospitals Inc.62 clinicians in the group
- Apogee Medical Group Waukesha SC43 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Mukwonago
Clinicians with the same Medicare primary specialty in Mukwonago, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1740547702 |
| 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