Helping our parents

Hi,

Probably many friends here on this forum had/have similiar situation. My parents in China are getting older. Their health condition are not good. And I believe if they were in U.S. they will have better chance to be treated. So I am thinking of applying green card for my parents and hoping after they come here, I can use my company's familiy health insurance to cover them.

Is this doable? Anyone already tried that before? Anything need to know before action? My parents have no plan to stay in U.S. They don't like here. So the green card application will be just for medical reasons.

Thanks a lot !!
A mom, and an anxious daughter