Testing Locations » North Carolina » Morrisville NC » Solstas/Quest Diagnostics – Morrisville – Employer Drug Testing Not Offered Solstas/Quest Diagnostics – Morrisville – Employer Drug Testing Not Offered Solstas/Quest Diagnostics – Morrisville – Employer Drug Testing Not Offered2200 Gateway Centre Blvd.Ste. 209 Floor 1Morrisville, NC 27560-6218 United States Located off of I-40