what type of suppliers need to provide a certificate or insurance
Your doctor will provide a certificate of medical necessity, saying that you require supplemental oxygen. Make sure this certificate of medical necessity includes exactly what your doctor told you that you need. Next, find an oxygen supplier that can provide what is in the certificate of medical necessity. Know that your oxygen supplier is not your doctor and cannot make decisions about the type of equipment you require. Only you and your doctor may do this! Once you have your equipment, you cannot, in most cases, change the type of equipment or type of delivery system for a term of five (5) years.