High Quality Content by WIKIPEDIA articles! The Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine is a cancer treatment, research and education institution with three locations in the St. Louis area. Siteman is the only cancer center in Missouri and within 240 miles of St. Louis to be designated a Comprehensive Cancer Center by the National Cancer Institute (NCI). Siteman is also the only area member of the National Comprehensive Cancer Network, a nonprofit alliance of 21 cancer centers dedicated to improving the quality and effectiveness of cancer care.