New York CNN  —  If you drive down a busy suburban strip mall or walk down a street in a major city, chances are you won’t go long without spotting a Concentra, MedExpress, CityMD or another urgent care center. Demand at urgent care sites surged during the Covid-19 pandemic as people searched for tests and treatments. Patient volume has jumped 60{a5ceed037b574a4d8c6b44a0a7290437cee40655417128da3b56d864fe64414f} since 2019, according to the Urgent Care Association, an industry trade group. That has fueled growth for new urgent care centers. A record 11,150 urgent care centers have popped up around the United States and they are growing at 7{a5ceed037b574a4d8c6b44a0a7290437cee40655417128da3b56d864fe64414f} a year, the trade group says. (This does not…