According to our records, this business is located at 2785 Lawrenceville Hwy in Decatur (in De Kalb County), Georgia 30033, the location GPS coordinates are: 33.8254477 (latitude), -84.2563219 (longitude). Quest Diagnostics is categorized under Testing Laboratories (SIC code 8071). You can contact the company by phone at (404) 378-6041.