Do I put in costs for surgery and therapy even though it was paid by insurance? I had Medicare. Does it still count as medical expenses?

I had knee surgery putting me out of work for three months and incurring medical fees up to $20,000 including e.r/surgery/anesthesia/hospital stay/and therapy. I had Medicare and all but a slight radiology bill seems to have been covered. I am unsure if I enter any of this in. Since I myself did not pay it do I not enter it?