Dr.van Doorninck is a pediatric hematologist oncologist with the Rocky Mountain Pediatric Hematology Oncology Clinic. He attended medical school at Vanderbilt University School of Medicine in Nashville, Tennessee and his pediatric residency at Children's Hospital Los Angeles, California and completed his pediatric hematology/oncology fellowship there as well. He finished his Masters program in Clinical and Biomedical Investigations at the University of Southern California.