John Muir Health Categories Hospitals and Clinics 5860 Owens Drive Pleasanton CA 94588 (925) 941-4031 Visit Website Member News John Muir Health’s Concord Medical Center Ranks First in California and in the Top 10 Nationally for Heart Bypass Surgery Outcomes Release Date: May 07, 2025 Rep/Contact Info Lennore Merz × Lennore Merz External Relations Outreach Coordinator Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×