List of Quest Diagnostics Stores in Sterling, VA Outlet Note Regular Brands Quest Diagnostics Virginia Sterling Rating 4.7 based on 66 votes Products STD Testing Clinical Laboratory Services Drug Test Blood Test NameAddressPhone Name/Address/Phone Quest Diagnostics outlet - Sterling 2 Pidgeon Hill Dr, #460 (703) 444-5472 Quest Diagnostics outlet - Sterling 46169 Westlake Dr (703) 430-5469 Quest Diagnostics outlet - Sterling 2 Pidgeon Hill Dr, Ste 120 (703) 444-5359 People Also Viewed