Patient Portal; Mobile App; Pay My Bill; Robert Gadlage, MD, FACS Physician . Make an Appointment. Accepts New Patients . Offers Virtual Visits . Locations for Dr. Gadlage. Duluth Office 3855 Pleasant Hill Rd Suite 420 Duluth, GA 30096. 770.495.1955 770.232.9961. ... Robert A. Gadlage, MD FACS & Associates P.C. Duluth Office 3855 Pleasant Hill ....