Testing Locations » Rhode Island » Wakefield RI » Dot Medical Express Llc – Dot Medical Express Llc – Drug Testing Only (Preferred) Dot Medical Express Llc – Dot Medical Express Llc – Drug Testing Only (Preferred) Dot Medical Express Llc – Dot Medical Express Llc – Drug Testing Only (Preferred)484 C Main StreetWakefield, RI 02879-0000 United States