Drug addiction and alcoholism affects many older Americans and seniors, and this issue continues to grow as each year passes. Seniors who are covered by Medicare, an insurance program funded through the federal government for Americans in this age bracket, can use their Medicare benefits to receive treatment services for substance abuse at a variety of substance abuse treatment programs around the country. Medicare covers both inpatient and outpatient rehab facilities, and seniors who wish to receive treatment can consult with their primary care physician to choose a rehab program covered by Medicare which would be suitable for them.