The law can still be repealed. Incoming Speaker John Boehner said (yesterday or today) it's a priority of his, and most, if not all, of the new Republican congressmembers promised to repeal the bill or parts of it.
OT, but I can't help myself. It's a priority of the GOP to bring health care repeal to a vote. That way they all get their Obamacare creds without having to actually fix anything.
If they want to actually repeal health care, they are going to have to wait until they have a Republican president, or a veto-proof majority, which won't happen until 2012 at the earliest. There may not be repeal momentum left at that point.
Slightly more on-topic, having things like this on your medical record is a concern, but I think keeping one's good health should always be more important than insurance details that may or may not make any difference.
