She completed her degree at Loma Linda University in Southern California. After finishing school she worked in a very busy asthma and allergy practice. Melissa and her husband moved to Sonora 2003. It did not take long to consider Sonora home. In January 2015 Melissa joined the Mathiesen Memorial Health Clinic family. She is enjoying being back practicing medicine after taking a brief leave of absence while raising her children. In her “spare time”, Melissa is active in her children’s school, soccer and 4-H. The Ronneburg family enjoys camping and fishing in the Sierras.