Gilbert, AZ 85297 San Tan Valley: 36543 N. Gantzel Rd., Building 15 Suite 101 San Tan Valley, AZ 85140 Tri-City Cardiology Vein Center and Tri-City Superstition 6402 E Superstition Springs Blvd., Ste 114 Mesa, AZ 85206 Administration - 6343 E Main St Ste 12 Mesa, AZ 85205.