Emergency Medicine

Emergency Medicine

MCW Emergency Medicine Residency Program Current Residents

2026-2027 Chief Residents

Maggie Amidei, DO: Wellness
Nathan Corman, MD: Scheduling
Morgan Pooler, MD: Resident Education
Shawn Slattery, MD: Student Education

Class of 2027

Margaret Amidei, DO

Marian University of Osteopathic Medicine

Bret Bussinger, MD, MBA

Medical College of Wisconsin

Nathan Corman, MD

University of Illinois – Rockford

Melanie Domann, DO

Campbell University School of Osteopathic Medicine

Ryan Laffin, MD

University of Wisconsin – Madison

Emilie Murphy, MD

University of Wisconsin – Madison

Justin Ochalek, MD, MS

University of North Carolina – Chapel Hill

Clara Olson, MD

University of Wisconsin – Madison

Morgan Pooler, MD

University of Illinois – Chicago

Claire Posadas, DO

Idaho College of Osteopathic Medicine

Samantha Powell, DO, MPH

Des Moines University of Osteopathic Medicine

Shawn Slattery, MD

University of Nevada – Las Vegas

Class of 2028

Sara Beaudoin, MD

University of Missouri Columbia

Matthew Bittmann, MD

Washington University in Saint Louis

Spencer Dempewolf, MD

University of Iowa Carver College of Medicine

Emiliano Fraire, MD

University of Wisconsin-Madison

Marissa Galli, MD

University of Wisconsin-Madison

Madeline Jurcev, DO

Midwestern University Chicago Osteopathic Medicine

Sean Keup, MD

University of North Dakota

Jessica King, MD

University of Wisconsin-Madison

Colin Liphart, MD

Medical College of Wisconsin

Nolan Ryan, MD

University of Illinois Chicago

Harrison Smith, DO

Marian University of Osteopathic Medicine

E. Coleen Wiest, MD, MPH

University of Arkansas

Class of 2029

Tyler Flannery, MD

Washington State University

Nia Foster, MD

University of Wisconsin

Brody Gordon, MD

Medical College of Wisconsin

Tyler Johnson, DO

Des Moines University

Alexis Malovec, MD

Medical College of Wisconsin

Carlos Marmolejo, MD

Southern Illinois University

Nicholas Parks, MD

Medical College of Wisconsin

Mason Penske, DO

Kansas City University

Mark Petereit, MD

University of South Dakota

Breeanna Psaris, MD

Medical College of Wisconsin

Alexander Rosiejka, MD

Medical College of Wisconsin

Ireland Smith, MD

Southern Illinois University

Colin Steck, MD

Medical College of Wisconsin

Joshua Tillmann, MD

Medical College of Wisconsin

© 2026 Medical College of Wisconsin. All rights reserved. | Terms and Privacy | Web Accessibility Statement

Non-Discrimination, Anti-Harassment, and Legal Compliance Statement
The Medical College of Wisconsin (MCW) is committed to fostering a diverse community of outstanding faculty, staff, and students, as well as ensuring equal educational opportunity, employment, and access to services, programs, and activities, without regard to an individual's race, color, national origin, religion, age, disability, sex, gender identity/expression, sexual orientation, marital status, pregnancy, predisposing genetic characteristic, military status, or other legally protected classification. MCW maintains full compliance with all applicable federal, state, and local laws and regulations in pursuit of our missions. Consistent with federal guidance, we affirm our commitment to individual merit, fairness, and equal treatment in all aspects of academic and institutional decision-making.

MCW's policies, federal and state laws, and regulations prohibit unlawful discrimination and harassment. Employees, learners, students, applicants, or other members of the MCW community (including but not limited to vendors, visitors, and guests) may not be subjected to harassment that is prohibited by law or treated adversely or retaliated against based upon a protected characteristic.