I walked in for mine - but I have seen people waiting. The phone # for Costco on Lineood is (816) 216- 0000 then press 5 for options and again 5 for hearing dept.
Yes, call. Just tried last week, booked for two weeks.
It is best to make appointment
You should make an appointment, sometimes they can be very busy.
pretty sure they take walk-ins...
I don't know but I can find out
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