Aspirus Wausau (Wis.) Hospital. Aspirus Wausau is the flagship hospital of the Aspirus health system, which employees more than 7,000 people and provides care to residents across 14 counties in central and northern Wisconsin, as well as Michigan's Upper Peninsula. The hospital is staffed by 350 physicians across 35 specialties and is equipped with 325 beds, taking in approximately 15,000 inpatient admissions and 24,000 emergency department visits annually. The hospital is nationally recognized for its cardiovascular program.