Stonewall Institute in Phoenix. Someone you know struggling with substance abuse? Recommend Stonewall Institute‘s renowned Intensive Outpatient Program for drug abuse problems and co-occurring symptoms. Check out what our clients say on Yelp. Stonewall‘s program is an affordable drug treatment program in Phoenix. You can find Stonewall on Yelp as well as www.stonewallinstitute.com. Call today at 602-535-6468 and start getting the drug counseling or alcohol counseling needed today.