Dr. William O. Semans, DDS Share: Dental Services Dr. William O. Semans, DDS Visit Website 334 Hancock St. Sandusky, OH 44870 (419) 626-1448 (419) 626-1598 (fax) Facebook About Rep Info Map About Offering dental services for: Full mouth reconstruction, Dental bridges, Dental crowns, Teeth whitening, Dental fillings, Root canals, Dentures, and Braces Whom to Contact Bill Semans Owner Phone: (419) 626-1448 What's Nearby? Distance: 5 10 15 20 25 50 mi.