A native of Texas, Dr. McKellar completed his undergraduate studies with a BA in Zoology at the University of Texas Austin and received his medical degree from the University of Texas Health Science Center in Houston, Texas. He completed two years of general surgery residency at University of Arizona College of Medicine and a four year orthopedic surgery residency at University of Arizona College of Medicine. Certified by the American Board of Orthopedic Surgery, he continues to attend advanced post-graduate courses and seminars. Dr. McKellar and his wife Michele, have two sons, Rand and Rick.