MERCY HAVEN INC https://www.pennysaverplus.com/bizlist/dashboard/listings// Listed in Other 0 reviews 859 CONNETQUOT AVENUE SUITE 10, ISLIP TERRACE, NY 11752 631-277-8300 Add to Favorites Claim Listing Overview Reviews Share on FacebookShare on TwitterShare on Google+Share on LinkedinShare on Pinterest Updated: Feb 1, 2017 Your Reply (required) Add Your Review You can't review your own listing.