Health Care as a Right

I'm wondering, when health care is discussed as a right, why is it that, generally*, people are speaking of the provision of health care as a right (ie socialized health care) rather than the ability to attain health care as a right (ie the ability to purchase services or insurance)?

Just wondering.

(*I have no empirical evidence, it's just been my experience.)

Originally posted at somedayallthiswillhavetobefixed.blogspot.com.