Template Sonora Quest Laboratories - Phoenix - Northeast (20950 N. Tatum Blvd) Share: Medical LaboratoriesBioscienceDrug Testing Facilities Visit Website 20950 N. Tatum Blvd., Ste. 290 Phoenix, AZ 85050 (480) 563-1241 (480) 563-3907 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.