Coastal Diagnostic Center is a imaging & radiology center that offers many services, including 3d mammography, digital mammography, and breast biopsy - stereotactic. Visit Coastal Diagnostic Center located at 921 Oak Park Blvd, Pismo Beach, CA. This Pismo Beach imaging & radiology center is one of the best in California. As part of the Dignity Health network, Coastal Diagnostic Center is dedicated to delivering high quality, compassionate care and access to Pismo Beach and nearby communities.