Chester County Dental Arts is dentist Dr Mark Simeone's dental practice on the Downingtown Coatesville boarder by the Thorndale train station. We offer the highest level of care including Invisalign clear adult braces, dental implants, & cosmetic dentistry: Lumineers, Veneers, teeth bleaching/teeth whitening. We love your dental insurance: Aetna, Blue Cross, Cigna, Connection Dental, Delta Dental, GeHa, Guardian, Humanna, Met-Life, MetLife, United Concordia, UCCI and many others.