Testing Locations » Massachusetts » E. Harwich MA » Quest Diagnostics – Harwich Quest Diagnostics – Harwich Quest Diagnostics – Harwich1421 Orleans Rd, Route 39 Ste S1022Nd FloorE. Harwich, MA 02645-2149 United States Rte 137 South to intersection of Rtes 137 and 39, PSC is on rnRte 39
