Dean was born in Reno, Nevada.
He completed his undergraduate premedical work at Stanford University and attended medical school at the University of California, San Diego, graduating in 1979.
After completing his pediatric internship and residency at the University of Colorado Health Sciences Center, he joined Partners in Pediatrics in 1982.
He enjoys music, travel, the arts and volunteer work.
His areas of special interest are the newborn, special-needs children, writing education materials and holistic care.