Contact Billing 911 Corporate Offices: Billing 911East 819 Main Street Watsontown, PA 17777 Telephone: 1-866-759-6331 Email: info@billing911.com History Billing 911 is a Pennsylvania corporation. Our managers have a combined total of over 150 years of EMS and billing experience. Our staff includes one former federal investigative assistant with the Department of Justice, two former City Managers, one ambulance company CEO, and one former Vice President of AMR. Additionally, we have a Medical Director, Paramedic, and Registered Nurse available should an appeal become necessary.