STANFORD HEALTH CARE TRI-VALLEY Stanford Health Care Tri-Valley (formerly ValleyCare) provides high-quality care rooted in science and compassion to support the health and well-being of its community in the East Bay and beyond. The hospital is part of Stanford Medicine, which comprises the Stanford School of Medicine and care delivery systems for all ages and health needs. OUR MISSION & VISION Mission: To care, to educate, to discover Vision: Healing humanity through science and compassion, one patient at a time.