Testing Locations » Maryland » Prince Frederick MD » Quest Diagnostics – Inside Prince Frederick Safeway Store – Employer Drug Testing Not Offered Quest Diagnostics – Inside Prince Frederick Safeway Store – Employer Drug Testing Not Offered Quest Diagnostics – Inside Prince Frederick Safeway Store – Employer Drug Testing Not Offered80 W Dares Beach RdPrince Frederick, MD 20678-3108 United States Located next to pharmacy inside Safeway Store, in the Calvert Village Shopping Ctr