There is a feature on the website to "save your spot." Click their website https://www.medstarhealth.org/mhs/urgent-care/bel-air/?utm_campaign=mhs_citations&utm_medium=ad_listings&utm_source=rio_seo&utm_term=mpc.
Not sure. I registered when I got there. They open at 8am. Get there early and be first in line. That's what I did. Its likely that you can register on line but I'm not sure.
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