Quick answers
- Which hospitals does Alex Trolenberg work at?
- Medicare's official clinician data lists Alex Trolenberg at 2 hospitals: Ascension NE Wisconsin - St Elizabeth Campus and Watertown Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alex Trolenberg see patients?
- Medicare's clinician data lists 3 practice locations, including Oshkosh, WI, Milwaukee, WI and Malta, NY. Call before your visit to confirm the address.
- What is Alex Trolenberg's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Alex Trolenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Alex Trolenberg 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 Alex Trolenberg?
- (920) 223-2000, as listed in official Medicare / NPI Registry data.
- What is Alex Trolenberg's NPI number?
- 1437654720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alex Trolenberg works
Medicare's Facility Affiliation Data lists Alex Trolenberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- Watertown Memorial HospitalWatertown, WI · Acute Care Hospital · CCN 520116
Practice locations
Addresses where Alex Trolenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 500 S Oakwood RdOshkosh, WI 54904 (920) 223‑2000
- 5000 W Chambers StMilwaukee, WI 53210 (414) 447‑2000
- 6 Medical Park DrMalta, NY 12020 (518) 289‑2020
Group practices
Medicare enrollment lists Alex Trolenberg as a member of these groups (CMS data updated 2026-10-02).
- Emergency Medicine Specialists SC227 clinicians in the group
- Healthcare Partners of Saratoga Ltd71 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Oshkosh
Clinicians with the same Medicare primary specialty in Oshkosh, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437654720 |
| 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