Legal Question in Business Law in California

You have essentially three options, keep ignoring them, offer to compromise the bill at some lesser amount or pay it. If they have already billed medicare and Blue Cross, and this is the uncovered portion, you should probably try and work out something with them. If, on the otherhand, they or you could have collected from insurance and now can't because they waited so long to bill you, you can object/contest on that ground. Keep in mind that it it is not resolved they will likely, at some point, turn the matter over to a collection agency.

IMPORTANT NOTICE: The above response is not intended to, and does not, create an attorney-client, fiduciary or other confidential relationship with the responder. Neither does it constitute the providing of legal advice or services or the giving of a legal opinion by the responder. Such a relationship can only be created, and legal advice and/or legal services provided, pursuant to a written agreement with the responder. Accordingly, no obligations of any kind are assumed with respect to any matter or question presented. It should also be noted that legal issues are often time sensitive and legal rights may be lost or compromised if you do not act in a timely fashion.

If your issue is that the billing is stale and should have been presented earlier, you can be right in principle but still lose in court, because the statute of limitations won't have expired in your favor. If you issue is that the billing is incorrect, you need to object in writing at the earliest opportunity, because failure to object may, in time, become an admission that the billing is correct.