Dr. Millea graduated from the University of South Alabama College of Medicine in 1986.
He is Board Certified by the American Board of Orthopedic Surgery and specializes in orthopedic surgery of the spine. He is a member of the American Academy of Orthopedic Surgeons and the North American Spine Society.
Dr. Millea is an active member of Catholic Medical Association (CMA). He serves as an Iowa state representative and works on two different CMA committees.
He is a co-founder and current president of the St. Thomas Aquinas Guild of the Quad Cities, a chartered guild of the CMA, established on January 28, 2014.