不要付這個賬單，這屬於surprise billing or balancing billing, see below

Many states have laws to protect patients from it. 

See the link below:

https://www.needhelppayingbills.com/html/medical_bills_you_should_not_p.html

https://www.kff.org/private-insurance/fact-sheet/surprise-medical-bills-new-protections-for-consumers-take-effect-in-2022/