Even if the bite was minor, there is nothing minor about medical bills.
The average cost of an emergency room visit is $512, and that doesn’t include stitches, antibiotics, or any shots that you might have to receive, let alone permanent scarring.
The insurance company of the liable party will do their best to get you to settle for far less than you are legally entitled to.
Failing that, they will usually delay payment on purpose, which means that the collection agencies will be calling you.
An experienced attorney that is familiar with the law and the tactics of the insurance companies can help you immeasurably.