If my husband has a ton of medical bills and wants to file for bankruptcy, will it affect my credit score?

In all likelihood if your husband filed for bankruptcy protection due to a large amount of medical bills that are most likely a marital obligation as opposed to his own separate obligation, your credit score will be impacted if the bills are ultimately not paid and the creditors take the position that you owe on these bills. You need to be aware that if the medical bills are a maritial obligation, you also might be a candidate for a bankruptcy filing to discharge these debts.

For that, I suggest that both you and your husband consult with an experienced bankruptcy attorney on the subject to see if only he should file for bankruptcy protection or both of you.