List of Quest Diagnostics Stores in Santa Ana, CA Outlet Note Regular Brands Quest Diagnostics California Santa Ana Rating 4.7 based on 66 votes Products STD Testing Clinical Laboratory Services Drug Test Blood Test NameAddressPhone Name/Address/Phone Quest Diagnostics outlet - Santa Ana 1800 N Bush St, Ste 101 (714) 547-8812 Quest Diagnostics outlet - Santa Ana 1220 Hemlock Way, Ste 101 (714) 754-1633 Quest Diagnostics outlet - Santa Ana 801 N Tustin Ave, Ste 407 (714) 564-9545 People Also Viewed