Dr. Alejandro Rios was born and raised in Guatemala City, Guatemala. He received his B.S and D.D.S. degrees, graduating valedictorian from Francisco Marroquin University. He practiced as a general dentist in Guatemala and then pursued his studies and training in the United States. He completed a general practice residency at Abington Memorial Hospital in Philadelphia, Pennsylvania. He then attended Baylor College of Dentistry in Dallas, Texas where he completed his specialty training in Endodontics. His research has been published in the Journal of Endodontics. Dr. Rios is active in the local community and is one of the proud founding members of the North Texas Hispanic Dental Association.

Dr. Rios is fluent in English, German, and Spanish. He is a Mavs fan, and he enjoys biking, wakeboarding, and traveling with his wife, Marianela.