Address  2271 South Peart Road,  Casa Grande,  AZ, 85122 Phone Number: (520) 836-1713 Horizon Human Services Horizon Human Services offers substance abuse treatment in Casa Grande, AZ. It Inpatient, Outpatient, and residential treatment for those who want to quit drugs and alcohol. It is a non-profit 501(c)(3) behavioral health agency licensed by Arizona state. One can … Continue reading Horizon Human Services Casa Grande AZ