It's quite possible he'd qualify for medicaid as his health insurance provider, so you might want to look into that as well. And, if he is so unwell as to be unable to work, he may be able to be designated as disabled -that would allow him to obtain SSD payments. All of this could be worked out, if possible, through his community or county mental health agency.
Also look for a local NAMI chapter for assistance. They are REALLY great at helping locate local resources.
www.nami.org.
Good luck!
emmy