Testing Locations » Florida » Port St Lucie FL » Quest Diagnostics – Inside Walmart Supercenter Port St. Lucie Quest Diagnostics – Inside Walmart Supercenter Port St. Lucie Quest Diagnostics – Inside Walmart Supercenter Port St. Lucie1675 Nw Saint Lucie West BlvdPort St Lucie, FL 34986-2106 United States Opening June 4, 2018rnLocated inside Walmart Supercenter/Sat. by appt. onlyrn