AToN Center - San Diego Luxury Drug and Alcohol Addiction Treatment Center - Find Your Direction! AToN Center is located in in beautiful Encinitas California and helps to serve the San Diego Area as a Top Rated, 5 Star Alcohol and Drug Rehab Center. AToN Center offers more than just rehabilitation from drugs and alcohol. It offers a way for individuals to learn to live live drug free and find their direction. AToN Center’s San Diego rehab is a sanctuary staffed with highly trained psychologists and recovery personnel that offers an addiction recovery program. AToN Center is a licensed, certified and accredited Residential Treatment Facility providing residential and detox services.