Urgent Help for Father's Critical Rehab

my father was shot on June 8th. He went for an open stomach surgery shortly after, that didn’t go well. He wasn’t stitched up properly internally and was slowly bleeding into his bowels and abdomen and it wasn’t detected on time, ultimately causing a heart attack. He lost his pulse and coded for 10 minutes. After reviving him he was deprived of oxygen to his brain for too long and is left with an anoxic brain injury. He is just a shell of the man I used to know…They denied his at home nurse as well so they are trying to send him home to us in this state with absolutely no help.. I have applied for Medicaid for him along with social security disability but until those go through, we have no insurance or funding to put him in a center for rehab, physical and speech therapy which he needs DESPERATELY. I’ve called to try and push his insurance through but they just say it can take anywhere from 8-10 months. right now our only option is to pay out of pocket until the disability is through. Please… anything will help at this point