
General Surgery Residents & Alumni
Our residents learn in a collaborative and supportive learning environment to enable them to practice in any environment.
Meet our 2024-25 residents
Physicians from around the country join Gundersen to pursue education and excellence.
PGY-1

Joshua Christensen, MD
Medical school: Medical College of Wisconsin

Lincoln Johnson, MD
Medical school: University of Illinois

Anders Pederson, MD
Medical school: University of Washington

Greggory Peterson, MD
Medical school: Michigan State University
PGY-2

Anna Kaldjian, MD
Medical school: University of Iowa

James Myall, MD
Medical school: Loyola University

Siobhan O’Dell, MD
Medical school: University of North Carolina at Chapel Hill

Spencer Treu, MD
Medical school: University of Wisconsin
PGY-3

Leah Reierson, MD
Medical school: University of Iowa

Kevin Beine, MD
Medical school: University of Wisconsin

Hunter Cameron, MD
Medical school: Medical College of Wisconsin

Abby Wilmer, MD
Medical school: University of North Dakota
PGY-4

Mattalynn Chavez-Navin, MD
Medical school: University of New Mexico

Andrew Edsall, MD
Medical school: Oregon Health and Science University

Alexandra Halbach, DO
Medical school: Des Moines University College of Osteopathic Medicine

Russell Herberg, MD
Medical school: Rush Medical College
PGY-5

Pedro Abdala, MD
Medical school: Oregon Health Sciences University

Bonnie Holley, MD
Medical school: University of South Alabama

Jessica Schweigert, MD
Medical school: University of North Dakota

Alumni and practice locations
Our General Surgery Residency graduates go on to improve the lives of patients, families and communities.
2024 alumni
Riley Grogan, MD
Medical school: University of Washington
Fellowship: Surgical Critical Care Fellowship, Medical University of South Carolina, Charleston, S.C.
Keaton Joppru, MD
Medical school: University of Minnesota
Fellowship: Pediatric Surgery Fellowship, University of Alabama, Birmingham, Ala.
Samuel Klinker, MD
Medical school: University of Minnesota
Fellowship: MIS/Bariatric Fellowship Gundersen Medical Foundation/Gundersen Health System, La Crosse, Wis.
May Leng Tai, MD
Medical school: Perdana University
Fellowship: Surgical Critical Care Fellowship, University Hospitals CMC, Cleveland, Ohio
2023 alumni
Bronson Bomkamp, MD
Medical school: University of Wisconsin School of Medicine and Public Health
Practice: Upland Hills Health, Dodgeville, Wis.
Rachel Seiler, MBBS, MPH
Medical school: University of Queensland
Practice: HealthPartners, Stillwater, Minn.
2022 alumni
Richard Cutts, MD
Medical school: Emory University
Practice: Davenport, Iowa
Faraz Khan, MD
Medical school: Albany Medical College
Practice: Davenport, Iowa
Alyssa Welch, MD
Medical school: Indiana University
Practice: Republic of Niger
2021 alumni
Liška Havel, MD
Medical School: Oregon Health and Science University
Practice: Silverton, Ore.
Nolan Rudder, DO
Medical School: Des Moines University College of Osteopathic Medicine
Fellowship: Medical College of WI - Critical Care
Practice: La Crosse, Wis.
Colby Seegmiller, DO
Medical School: College of Osteopathic Medicine of the Pacific
Practice: Neenah, Wis.
2020 alumni
Brendon M. Esquibel, MD
Medical School: Brown University
Practice: La Crosse, Wis.
David M. Fedor, MD
Medical School: The University of Pennsylvania
Practice: Virginia, Minn.
Jessica M. Rasmussen, MD
Medical School: University of Wisconsin School of Medicine and Public Health
Practice: Albuquerque, N.M.
2019 alumni
Humera F. Ahmad, MD
Medical school: University of Nebraska
Practice: Green Bay, Wis.
Laura A. Hill, MD
Medical school: University of South Dakota
Practice: Green Bay, Wis.
2018 alumni
Wesley R. Badger, MD
Medical school: University of Louisville
Practice: Spearfish, S.D.
Nicholas E. Coorough, MD
Medical school: University of Wisconsin School of Medicine and Public Health
Practice: Green Bay, Wis.
Ryan S. Watson, MD
Medical school: University of Minnesota
Practice: Virginia, Minn.
Why Gundersen

Call La Crosse Home
We have it all in La Crosse, Wis. Our vibrant city and region support your dream lifestyle with a welcoming community, culture and outdoor adventure.

Housing
Steps from our flagship medical center in La Crosse, our housing options allow you to enjoy the company of your family and the comradery of your colleagues.

Prioritizing Your Wellness
As you learn how to become the clinician you aspire to be, we’ll provide space to prioritize your mind and body wellness, and reach the work-life balance you need.