Back in March, when COVID-19 was just starting to crest, hospitals took steps to brace for a potential surge of patients. But while COVID-19 surged, revenues slowed to a trickle. “Early on, we realized we needed to build capacity for a surge of patients so we didn’t get overwhelmed like they did in New York City, so we shut things down early in March — which blew a hole in everybody’s finances,” said Mark Keroack, president and CEO of Baystate Health.