Dr. Joseph C. Mares is a pediatric cardiologist in Downey, California and is affiliated with multiple hospitals in the area, including Kaiser Permanente Downey Medical Center and Kaiser Permanente Los Angeles Medical Center. He received his medical degree from Columbia University Vagelos College of Physicians and Surgeons and has been in practice between 11-20 years. Dr. Joseph C. Mares accepts Kaiser - see other insurance plans accepted.