Jeong Park, MD - St. Helena Cardiology Jeong Park, MD - St. Helena Cardiology is located on 15250 Lakeshore Dr., Suite C in Concord. They can be reached by phone by calling (707) 995-7077 or by going to their website . They can be reached by calling (707) 995-7077 or going to their website . They have not yet been reviewed on MojoPages.com.