With Joint Commission Gold Seal accreditation, stroke and heart care awards, CAP-accredited lab and ACS-certified Cancer Center, this flagship facility offers comprehensive services including robotic surgery, cancer care, neurosciences, rehab, emergency/trauma, maternity, behavioral health and a robust nursing excellence program. MercyOne Des Moines Medical Center, founded by the Sisters of Mercy in 1893, is the longest continually operating hospital in Des Moines and Iowa’s largest medical center, with 802 beds available.