Drug and alcohol rehab centers which deliver services to those covered by Medicare are available in almost all parts of the U.S., and this health insurance coverage can cover both inpatient and outpatient drug and alcohol treatment centers. The only stipulations are that the need to receive services in a drug rehabilitation program must be considered medically necessary by the addicted individual's physician and the individual's doctor is required to help set up their treatment plan. Due to the fact that there are health screenings that have been put into the system by Medicare in liaison with doctors who medically treat seniors, early detection has been useful in getting seniors to an appropriate drug rehabilitation center in Diablo, California that is offered through their Medicare plan. This has assisted many seniors overcome problems with addiction and eventually conquer substance abuse effectively to ensure they can enjoy the remaining years of their lives without the threat of falling back into drug use.