Dr. Garretson graduated from Washington University in St Louis School of Medicine in 1996 and has been in practice for 22 years. He completed a residency at Rush Presbyterian St Lukes Medical Center. He currently practices at Blue Ridge Orthopaedic and is affiliated with Inova Fairfax Hospital. Dr. Garretson accepts multiple insurance plans including Aetna, Medicare and Cigna. Dr. Garretson also practices at Urological Associates/Piedmont in Gainesville, VA.