Emergency Medicine

  Dr. Chad Torstenson is a board-certified Emergency Medicine Physician and will join Mahaska Health in December. He received his education at the University of Iowa and University of Iowa Medical School. He also holds MBA and Health Management degrees from Loyola University Quinlan School of Business in Chicago. He performed his residency at Hennepin…

Emergency Medicine & General Surgery

Dr. Chris SE Martin is board-certified in Surgery, advanced trauma life support and by the National Board of Medical Examiners and will join Mahaska Health in December after nine years at Broadlawns Medical Center in Des Moines. “From an early age, I had an interest in medicine,” said Martin. “I was always curious about how…

Sue Roefer, DO

Emergency Medicine

Suzy Roefer, DO serves as an Emergency Medicine Physician in the Mahaska Health Emergency Services Department. Dr. Roefer has a background in Family Practice and has over 10 years of Emergency Department Experience. Dr. Roefer became a provider to help others and feels that is the most rewarding part of her career. She strives to…

Deb De Jong

Emergency Medicine

Deborah Nielsen-DeJong, MD, is passionate about her work with emergency medicine. She originally became a provider because she enjoys working with people and problem solving, and she continues to find joy while easing her patient’s fears and providing them with excellent healthcare. Deb approaches each patient as if they were her own family member, ensuring that they get the…

David Cornelder, DO Emergency Room Director

Emergency Room Director

David Cornelder, DO, joined Mahaska Health as the Emergency Room Medical Director in March of 2020, and his calming presence serves as a great asset to the Emergency Services care team. Cornelder is an Oskaloosa native who began his career at Mahaska Health as a respiratory therapist. In 2005, he took a break from respiratory…