Johnson-Witkemper Insurance Share: Insurance Johnson-Witkemper Insurance Visit Website 305 Washington Street Columbus, IN 47201 (812) 372-7829 Rep Info Map Whom to Contact Mike Bonham Courtney Gibson Mr. Terry Green 305 Washington Street Columbus, IN 47201 Cell Phone: (812) 341-7973 Send an Email Deb Johnson What's Nearby? Distance: 5 10 15 20 25 50 mi.