How do I find a memory care facility for a combative vascular dementia patient?

My uncle is 65 years old and been diagnosed with vascular dementia after two strokes in less than a month. He was discharged from a nursing home saying that he was high functional and can live on his own. I believe that he was discharged because he was being very competitive with staff and other patients. He had a psych evaluation and that's when they found out that he had vascular dementia. We live in Indiana and I'm having a problem finding a facility that can meet his needs.