Adult Family Medicine

Family Medicine physician Sean Crawford, DO is an Iowa native, working to build a healthy community around him in Mahaska county. Dr. Crawford is no stranger to Mahaska Health because he spent his third year of medical school training with the talented team of Family Medicine physicians. During that year, Dr. Crawford saw the camaraderie…

Emergency Room Medical Director

Matthew Gritters, MD, obtained his bachelor’s in biology at Trinity Christian College, Chicago, Illinois, and his Medical Degree at the University of Iowa College of Medicine. He completed his Residency training in Family Medicine at Mercy Family Medicine Residency-North Iowa. Dr. Gritters is a member of the American Academy of Family Practice and AFP Boarded…

Emergency Medicine

With many years of experience serving patients throughout the Midwest, Dr. Fredrickson is an excellent patient advocate and care provider with expertise in Emergency Medicine and is board certified in Family Practice. Dr. Fredrickson is committed to serving his community and patients with numerous volunteer experiences and leadership roles as a physician. Prior to joining…

Oncology Medical Director

Dr. Daniel Kollmorgen serves as the Staff Surgeon, Medical Director of Oncology Services, and Vice President of Medical Affairs. 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…

  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…