Testing Locations » California » San Diego CA » Emsi-San Diego Branch – Emsi-San Diego Branch – Drug Testing Only (Preferred) Emsi-San Diego Branch – Emsi-San Diego Branch – Drug Testing Only (Preferred) Emsi-San Diego Branch – Emsi-San Diego Branch – Drug Testing Only (Preferred)2815 Camino Del Rio SSte 1ASan Diego, CA 92108-3816 United States