After graduating from the University of Utah with a bachelors he attended four years of medical school at Des Moines College of Podiatric Surgery in Des Moines, Iowa where he graduated with honors.  Dr. Christiansen then continued his training with a 3 year residency in Tacoma, Washington where he was the chief resident. He is an active member of the Utah Podiatric Medical Association, American Podiatric Medical Association, American College of Foot and Ankle Surgeons, board certified by the American board of Podiatric medicine, and is board qualified by the American Board of Podiatric Surgery in forefoot and rearfoot reconstruction.

He specialized in forefoot and rearfoot reconstructive surgery, fracture care, sports medicine, and diabetic wound care.