Drug addiction and alcoholism affects many older U.S. residents and seniors, and this problem is projected to only get worse in the near and distant future. senior citizens whom are covered through the Medicare program, a health insurance plan available by the government for individuals in this age bracket, can use their benefits to take part in essential treatment treatment for substance abuse at an a myriad of alcohol and drug treatment centers around the Willits, CA. area. Medicare covers both residential and outpatient drug and alcohol rehab programs, and seniors in Willits, California who wish to receive rehab may consult with their primary care medical professional to decide a Willits, CA. drug rehab program who accepts Medicare which will be appropriate for them.