Drug Testing of Florida in Daytona Beach, FL located at 1420 Mason Ave, Suite 100. The hours of operation for this clinic are not known, however most walk-in clinics are open daily and for extended hours. Drug Testing of Florida appears to be individually owned and operated and not part of a larger network of clinics. There are, however, 2 walk-in clinics within 20 miles of Daytona Beach in cities including HOLLY HILL and South Daytona.