Arkansas Heart HospitalLocationsEl Dorado Clinic El Dorado Clinic Arkansas Heart Hospital Clinic in El Dorado is proud to serve the people and community of Union County. El Dorado Clinic Physicians Armaghan Soomro, MD, FACC Nureddin Almaddah, MD El Dorado Clinic APNs Dee White, APRN Patrick Stage, APRN Angela Simmons, APRN Jessica Westbrook, PA-C El Dorado Clinic Services Echocardiography Coumadin Clinic Treadmill Stress Testing All Labs Peripheral Vascular Testing