Quick answers
- Which hospitals does Martin Dun work at?
- Medicare's official clinician data lists Martin Dun at 5 hospitals: Ascension All Saints Hospital, Ascension Columbia St Marys Hospital Milwaukee, Ascension NE Wisconsin - St Elizabeth Campus, Ascension SE Wisconsin Hospital and St Josephs Community Hospital West Bend. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Martin Dun see patients?
- Medicare's clinician data lists 6 practice locations, including Appleton, WI, Milwaukee, WI and Mount Pleasant, WI. Call before your visit to confirm the address.
- What is Martin Dun's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Martin Dun accept Medicare assignment?
- Yes. Medicare's clinician data says Martin Dun 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 Martin Dun?
- (920) 738-2000, as listed in official Medicare / NPI Registry data.
- What is Martin Dun's NPI number?
- 1457886277. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Martin Dun works
Medicare's Facility Affiliation Data lists Martin Dun 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 Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · CCN 520051
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · CCN 520136
- St Josephs Community Hospital West BendWest Bend, WI · Acute Care Hospital · CCN 520063
Practice locations
Addresses where Martin Dun is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1506 S Oneida StAppleton, WI 54915 (920) 738‑2000
- 3237 S 16th StMilwaukee, WI 53215 (414) 647‑5000
- 3801 Spring StMount Pleasant, WI 53405 (262) 687‑4011
- 3807 Spring StMount Pleasant, WI 53405 (262) 687‑8173
- 500 S Oakwood RdOshkosh, WI 54904 (920) 223‑2000
Group practices
Medicare enrollment lists Martin Dun as a member of this group (CMS data updated 2026-10-02).
- Emergency Medicine Specialists SC227 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Appleton
Clinicians with the same Medicare primary specialty in Appleton, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457886277 |
| 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