Medicare Part B cover knee braces that are medically necessary under the benefit for prefabricated orthotics as durable medical equipment, according to Medicare.gov. Everyone with Medicare Part B is covered. Patients pay 20 percent of the amount Medicare approves, and Medicare applies the deductibles under Part B, as of 2015.
Patients should discuss the costs of their knee braces with their health care professionals. Factors that determine what patients pay include insurance available to the patients, the sources from which patients obtain products or services, doctor charges, and whether doctors or suppliers accept Medicare assignment, explains Medicare.gov. Medicare offers a directory of suppliers at its website that allows patients to search by ZIP code for orthotics providers.