Dr. Daniel Kollmorgen serves as the Oncology Medical Director at Mahaska Health. He has over 20 years of experience as a physician and it is his passion to bring expert, compassionate care to his community. Dr. Kollmorgen studied medicine at the University of Iowa and completed a surgical oncology fellowship at Roswell Park Cancer Institute.…
Prior to entering medical residency, Dr. Ivy Melgarejo briefly worked as an emergency humanitarian response doctor for Doctors Without Borders and Save the Children and as a research doctor for the Philippine Cardio Genomics Project. She trained in the beautiful island of Hawaii for Internal Medicine and went to Pittsburgh for Nephrology and Transplant…

Aaron Smith, DO, FACOS is a Board Certified, Fellowship-trained Urology Specialist. Dr. Aaron Smith provides expert urology care for Mahaska Health in coordination with University of Iowa Health Care, a national leader in diagnosing and treating bladder and urinary disorders. UI Health Care’s team-based approach to individualized patient care draws from medical and surgical…

Dr. Kamerath is a Mahaska Health Emergency Medicine Physician serving the emergent needs of rural Iowa. As a native of small-town Utah, Dr. Kamerath was excited to experience medical training in Iowa because it felt just like home. Dr. Kamerath is driven by a need to be prepared for any emergency and takes pride and…