Since 1932, Osceola Medical Center has been providing quality hometown care in Osceola, Wisconsin. ... with Patient Portal. Get access to your records, schedule online appointments and chat with your healthcare team. ... Osceola Medical Center 2600 65th Ave, Osceola, WI 715-294-2111. Wild River Fitness 2630 65th Ave, Osceola, WI 715-294-2164.For Employees‧Patient Portal‧Providers & Specialties‧Careers‧Pay My Bill‧Hours & Locations.