DeKalb Medical Physicians Group in Lilburn, GA. Health (1 days ago) DeKalb Medical Physicians Group is a group practice with 46 locations. Currently, DeKalb Medical Physicians Group's 127 physicians cover 37 specialty areas of medicine.DeKalb Medical Physicians Group Office Locations. Showing 1-5 of 46 Locations. DeKalb Medical Physicians Group. 1035 Southcrest Dr Ste 250.