Arroyo Grande Community Hospital - Lab - CLOSED is a diagnostic laboratory that offers many services, including clinical laboratory services, pathology laboratory services, and blood tests. Visit Arroyo Grande Community Hospital - Lab - CLOSED located at 345 S Halcyon Rd, Arroyo Grande, CA. This Arroyo Grande diagnostic laboratory is one of the best in California. As part of the Dignity Health network, Arroyo Grande Community Hospital - Lab - CLOSED is dedicated to delivering high quality, compassionate care and access to Arroyo Grande and nearby communities.