Dornbier Chiropractic Clinic 1315 6th St Sw Mason City, IA  50401 Phone: (641) 424-5171   Haas Chiropractic Center 1403 S Federal Ave Mason City, IA  50401 Phone: (641) 424-6531   Haas Richard W Dr Chiropractor 1403 S Federal Ave Mason City, IA  50401 Phone: (641) 424-6531   Mason City Clinic PC 250 S Crescent Dr Mason City, IA  50401 Phone: (641) 422-6690   Sande Chiropractic 1529 S Monroe Ave Mason City, IA  50401 Phone: (641) 423-5588   Shirk Chiropractic Clinic 110 N Washington Ave Mason City, IA  50401 Phone: (641) 423-4455