Knapper, JohnWrite a Review641-428-6648Be the first to review!1501 4th St SW, Mason City, IA 50401Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoHoursDo you know the hours for this business?Extra PhonesPhone: 641-428-6484CategoryPhysical Therapists Suggest an Edit