Should I enter the amount I've paid for doctors fees aka "Your Share" or can I use the "Plan Approved" or "Plans Share" amounts as medical professionals fees?

I'm using a Medicare HMO plan which issues monthly statements with the "Plans Share", "Your Share" and "Total Cost (amount the plan has approved). When entering 'medical professional fees', which of the three categories should I report - my share, the plans share or the total cost?