All St. Louis MRO locations and hours of operation can be found on our website here.
If you received a notice that you are due for a Random or Renewal drug screen but cannot make it to one of the locations on our website referenced in the above link, please contact St. Louis MRO at 636.461.1300, as soon as possible. St. Louis MRO will send you to a Quest Diagnostics or one of its affiliates near you for your convenience.
