To learn more about El Rio Health or to give over the phone, please call 520-205-4947. If you would like to make your gift by mail, please send your check to El Rio Foundation, 839 W. Congress, Tucson, AZ 85745. If you donate to a qualifying charitable organization in Arizona, you can claim a tax credit that reduces dollar for dollar what you pay in state income tax. El Rio Health Center Foundation qualifies for this tax credit. Couples who file jointly in Arizona can reduce their state taxes by up to $800; individuals up to $400. Your support changes lives! Thank you.