A "Northwestern Memorial" brand hospital could rise in Lake Forest, IL, under a deal under discussion between Lake Forest Hospital and Northwestern Memorial HealthCare, which operates two large teaching hospitals in downtown Chicago. Lake Forest Hospital executives have been in merger talks with Northwestern Memorial HealthCare, parent of Northwestern Memorial Hospital in Chicago, since late last year. The talks center on Lake Forest's desire to have Northwestern Memorial commit to financing the replacement of the 67-year-old main hospital complex that houses the bulk of Lake Forest's general acute care patients.