Nicholas Koehn, DO

Hospitals where Nicholas Koehn works

Medicare's Facility Affiliation Data lists Nicholas Koehn at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Ascension All Saints HospitalRacine, WI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 520096
• Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520051
• Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520136
• Memorial Medical CenterSpringfield, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140148

Practice locations

Addresses where Nicholas Koehn is enrolled with Medicare (CMS data updated October 2, 2026).

• 10625 W N Ave, Suite 101Milwaukee, WI 53226

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Wisconsin →

Other emergency medicine doctors in Milwaukee

Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.

• Maureen T. Luetje, DO
• Phawanjit K. Demos, DO
• Elizabeth B. Roth, MD
• Emma C. Nash, MD
• Jeffrey Collings, MD
• Mark A. Philips, DO
• Grant T. Comstock, MD
• John T. Teijido, MD

All emergency medicine doctors in Milwaukee →

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians