Dr. Matous was born in Sarnia, Ontario, Canada but raised in Seattle, Washington. Dr. Matous received his medical degree with honors from the University of Washington. He completed his internal medicine residency and chief residency at the University of Colorado Health Sciences Center. His fellowship training in hematology and bone marrow transplantation was completed at the University of Washington and the Fred Hutchinson Cancer Research Center. He returned to Denver to practice at Rocky Mountain Cancer Centers in 1994, where he worked until 2010 before moving to CBCI.