Testing Locations » Florida » Loxahatchee FL » Quest Diagnostics – Loxahatchee – Employer Drug Testing Not Offered Quest Diagnostics – Loxahatchee – Employer Drug Testing Not Offered Quest Diagnostics – Loxahatchee – Employer Drug Testing Not Offered12983 Southern BlvdSuite 101Loxahatchee, FL 33470-9254 United States Building 4 – 1st building on the right next to the Palms West Hospital. 3rd Tuesday of every month site will close at 1:00pm