List of Quest Diagnostics Stores in Johnson City, TN Outlet Note Regular Brands Quest Diagnostics Tennessee Johnson City Rating 4.7 based on 66 votes Products STD Testing Clinical Laboratory Services Drug Test Blood Test NameAddressPhone Name/Address/Phone Quest Diagnostics outlet - Johnson City 3901 Bristol Hwy # 201 (423) 928-7770 Quest Diagnostics outlet - Johnson City 1321 Sunset Dr, Ste A-21 (423) 283-9952 People Also Viewed