Since your father is a veteran, check out this site and click on The A&A Program button on the left. Lots of good info about getting assistance for a verteran and spouse who need assistance in their later years.
http://www.veteranaid.org/
My father was in Independent living for 1 1/2 years before he passed away. I found this site about 6 months later and wish I has know that he could have had assistance because he was a veteran.
I hope you father has a speedy recovery.