Locations GPLN is a network of labs throughout the state. We probably have one close to you. click the location to learn more about the facility which can serve you. Please take a moment to review our holiday closings schedule. GPLN 2018 Holiday Schedule Gainesville, GA (770) 766-6810Monday – Friday, 8:00AM – 5:00PM More Information Tifton, GA (970) 420-4155By Appointment Only More Information Forsyth, GA (478) 994-1219Please call for hours. More Information