DME is equipment that can withstand repeated use, is primarily used for a medical purpose, and is not generally used in the absence of illness or injury. Examples include hospital beds, wheelchairs, and oxygen delivery systems. Medicare will cover medical supplies that are necessary for the effective use of DME, as well as surgical dressings, catheters, and ostomy bags. However, Medicare will only cover DME and supplies that have been ordered or prescribed by a physician. The order or prescription must be personally signed and dated by the patient's treating physician. DME suppliers that submit bills to Medicare are required to maintain the physician's original written order or prescription in their files. The order or prescription must include: o the beneficiary's name and full address; o the physician's signature; o the date the physician signed the prescription or order; o a description of the items needed; o the start date of the order (if ap