Cardiac Monitoring Services provides Holter Monitors and Cardiac Event Monitors to doctors nationwide at no cost to the physician. We also provide Looping Event Monitors, Trans-Telephonic Event Monitors, and Holter Scanning Services. We have Certified Cardiovascular technicians and Certified Cardio-graphic technicians on staff 24/7 preparing every report, and standing by to help doctors interpret the results. Based in Orange County, California, we can ship overnight to anywhere in the United States. Call us with any questions about Cardiac Event Monitors or Holter Monitors. We accept all major insurance, PPO, HMO, and Medicare. Cardiac Monitors are the heart of our business!