List of Quest Diagnostics Stores in Texarkana, TX Outlet Note Regular Brands Quest Diagnostics Texas Texarkana Rating 4.7 based on 66 votes Products STD Testing Clinical Laboratory Services Drug Test Blood Test NameAddressPhone Name/Address/Phone Quest Diagnostics outlet - Texarkana 921 Texas Blvd, Ste A (903) 792-1495 People Also Viewed