Testing Locations » Nevada » Las Vegas NV » Quest Diagnostics – Las Vegas West Lake Mead Quest Diagnostics – Las Vegas West Lake Mead Quest Diagnostics – Las Vegas West Lake Mead7460 W Lake Mead BlvdSte 3Las Vegas, NV 89128-0296 United States Located in the Summerlin Gateway Plaza. On the corner of Lake Mead Blvd and Buffalo Dr
