- Trinity Health (Oelwein, IA)
- …Community Level IV Trauma Designation + MercyOne Oelwein Medical Center (https://www.mercyone.org/northeastiowa/location/mercyone- oelwein -medical-center) , ... Community Level IV Trauma Designation With more than 2,500 colleagues, MercyOne is one of the largest employers in Northeast Iowa. MercyOne Medical Group - Northeast Iowa is made up of more than 30 primary care, pediatric, internal medicine and specialty… more