An experience NO ONE WANTS.
Tempers flair, maybe you are just an innocent caught in the middle.
Regardless, because of a physical confrontation, you are hurt. Medical bills.
What are your rights?
Just like any personal injury claim, you have a right to make a claim against the parties that caused the fight and your injuries.
If you are unable to resolve the matter, you can file a lawsuit.
Who is responsible? The assailant? A restaurant or bar that overserved those involved? Others?
The next question: Do any of the at-fault parties have insurance to cover their liability?
If an intentional act, maybe not. If alcohol involved, the answer might be different.
Keep in mind that the Arizona statute of limitations (your time to file a lawsuit to protect your rights) may be shortened to 1 year from the date of the incident.
If you are a victim, you should seek assistance from an attorney experienced in these matters ASAP.
An investigation will need to be done and witnesses located. The passage of time will not help your case.
Do not delay. You have rights. Take the time to learn what they are.