Matt Whitis, MD

Emergency Medicine

Dr. Matt Whitis practices in Emergency Room and on Inpatient Services as a Hospitalist. He is an avid long distance runner who regularly competes in Ironman competitions. Dr. Whitis is also an active general aviation pilot. SpecialtyEmergency Medicine Board StatusAmerican Board of Family Practice EducationUniversity of Iowa School of Medicine, Iowa City, IA ResidencySt. Joseph…

Sue Roefer, DO

Emergency Medicine

Deb De Jong

Emergency Medicine

Dr. Deborah Nielsen-DeJong has been working in Emergency Medicine since 1992 and is interested in urgent and emergency medicine Specialty Emergency Medicine Board Status American Board of Family Practice Education University of Iowa School of Medicine Iowa City, IA Residency Cedar Rapids Medical Education Program Cedar Rapids, IA Locations Mahaska Health Medical Group Mahaska Health…

Amanda Moreno, DO

Emergency Medicine

Dr. Amanda Moreno has been serving our community in the Mahaska Health Emergency Department since April 2013. Specialty Emergency Medicine Education Des Moines University Residency Iowa Lutheran Hospital Location Mahaska Health Emergency Services  

Kymberly Life, DO

Emergency Medicine

Dr. Kym Life treats patients during some of their most vulnerable times in the Emergency Department at Mahaska Health. She is an internist by training and enjoys working with her patients to determine the best treatment plan that fits their needs. Dr. Life values the importance of a healthy lifestyle and when not at work,…

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…