If you have been contacted by this number, it is likely you have interacted with UPMC and have a medical issue. I cannot say anymore, and further investigation is up to you.
I called and did get into a voice system. I then was told I was a "WCA subscriber" and had won something for having signed up for it on "a website". After some more message I was going to be forwarded to a "live agent" but was given the option to hit 3 to opt out (I have done this before).
After hitting three, I ened up connected to "Maria" who started her spiel (I think that she was a "live agent" and that I got bumped to the pool of calls for the hard sell). At any rate, she promised me she would remove me from the list, and when I pressed her and asked her if she was really going to do that, the phone went silent and a computer voice said "Goooodbye!".