He received his medical degree in Argentina at Northeast National University in 1989 and has practiced in several hospitals in Argentina, Paraguay, Madagascar and Fiji. Currently he is the Medical Director of the Mission Clinic and oversees all the workings of the Clinic and Mission. His wife, Nani Kalbermatter, RN, is a nurse who works alongside him and coordinates with visiting doctors and teams. The Kalbermatters live at the mission full time.