Registration open for Pfizer vaccine clinic at American Bank Center Registration is open for a Pfizer COVID-19 vaccine clinic at the American Bank Center on Wednesday. First doses of the vaccine will be administered from 9 a.m. to noon. The Pfizer vaccine is available to anyone 16 and older. The clinic is by appointment only and is not a drive-thru clinic. To register online, visit driscollchildrens.org/covid19vaccine. People can also call 1-844-977-1477 from 8 a.m. to 5 p.m. Monday through Friday. Please call the same number if you need to cancel an appointment. People are urged to sign up online if they can; you may experience hold times using the call center.