??Memorial Hospital is conveniently located in a well-established west Belleville neighborhood at 4500 Memorial Drive in Belleville, Illinois. We also have diagnostic centers in O’Fallon, Illinois, and an off-campus physical therapy center in east Belleville.Owned and operated by Protestant Memorial Medical Center, Inc., a community-based, not-for-profit corporation, Memorial provides full- and part-time employment for more than 2,300 people.