Osceola County--osceola County Mental Health Sibley, IA 51249 Phone : (712) 754-4209 Business Category Offices & Clinics Of Health Practitioners Government Offices & Public Schools Osceola County Of--mental Health Office 300 7th St Sibley, IA 51249 Phone : (712) 754-4209 Business Category Offices & Clinics Of Health Practitioners Mental Health Services Psychiatric Hospitals Administration Of Public Health Programs