Hi Suzzane, Thanks for choosing Sameday Health. You don't need an appointment but you do need to register when you arrive. The antigen test cost $95 Here's the link if you decide to make an appointment https://app.samedayhealth.com/booking/florida--south-beach?wmode=opaque
Yes you can walk in, appts are preferred though. The cost is $95 and you get your results in 30 mins by email or text, real nice people too
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