Oncology Medical Director

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…

Paige Rastenburg OTD, OTR/L

Occupational Therapy

Surgical Services,
Anesthesiology

Kyler Parkinson, CRNA, (nurse anesthetist) has a passion for his patient’s well-being and we are thankful to have him join the Mahaska Health family! Throughout the anesthesia process, Kyler is dedicated to helping every patient feel comfortable and that they have a positive experience. Both Kyler and his wife love being a part of small…

Surgical Services,
Anesthesiology

  Eric Barrett, CRNA, ARNP, DNP, has been serving patients with expertise for over a decade. He specializes in anesthesia and it is always his top priority to make the patient experience the best it can be! Eric is board-certified with the NBCRNA, promoting patient safety and Provider quality. After growing up in Oskaloosa, Eric…