looking for 12 step-esque heart disease recovery support group in L.A.

     My name is David G.  My father had triple-by pass surgery a few years ago, and he can walk and he can still practice law, but he gets chest pains and has trouble breathing at times.  He knows what he needs to do to take care of himself, and get himself to have less chest pains.  He knows that he needs to exercize and eat better and what he needs to do overall, but I don't think knowledge is enough.  As someone who comes from a 12-step background, I think he needs to meet with a group of people who have similar issues.  He needs a place where he can admit he is powerless over his avoidance of self-care in terms of his heart problems, and he needs to find someone or a group of people that will help him take care of himself.  I think he's like an alcoholic who knows that alcohol is bad for him but can't stop drinking it on his own, and he needs a sponsor, or a group of people to help him, or push him to take care of himself.  This could be a 12-step group, or something else.  I don't know, but I know that if he continues to go about his heart problems in this way, he may die soon.  Do any of you know of such a group that he could go to in the Los Angeles area, preferably once a week, or a list of groups that overall take place once a week?