Testing Locations » Virginia » Winchester VA » Solstas / Quest Diagnostics – Winchester Amherst Street – Employer Drug Testing Not Offered Solstas / Quest Diagnostics – Winchester Amherst Street – Employer Drug Testing Not Offered Solstas / Quest Diagnostics – Winchester Amherst Street – Employer Drug Testing Not Offered812 Amherst StSte 100Winchester, VA 22601-3344 United States Next to Winchester Medical Center