Testing Locations » Florida » Bonita Springs FL » Quest Diagnostics – Bonita Springs Colonnade Quest Diagnostics – Bonita Springs Colonnade Quest Diagnostics – Bonita Springs Colonnade9550 Bonita Beach RdUnit #107Bonita Springs, FL 34135-4517 United States PSC is located in Colonnade Medical Park. 3rd Wed. of every month site close early at 1:00pm