While we encourage patients to call during normal office hours, we understand certain cardiac conditions can occur at unpredictable times. Therefore, we are available 24-hours-a-day, 365-days-a-year in case of an emergency. After normal office hours, our answering service will contact the cardiologist on call and he or she will contact you shortly. If you think you may be having a serious problem or life-threatening emergency, do not hesitate to call 911 or go to the Emergency Department at Providence Tarzana Medical Center, West Hills Medical Center, or the hospital nearest you. The emergency department will contact us.