Dr. Casas is certified by the American Board of Obstetrics and Gynecology and maintains his annual recertification. Born and raised in Houston, Texas, he earned his medical degree from Baylor College of Medicine at the Texas Medical Center. He completed his residency in Obstetrics and Gynecology in Florida.

He has been in private practice in the Henderson/Las Vegas area since 1996, and has privileges at Henderson Hospital and St. Rose Siena Hospital. He has a special interest in female urinary incontinence as well as vaginal reconstructive surgery. Dr. Casas performs minimally invasive gynecologic surgery utilizing the Davinci Robotic technology. His practice has incorporated the use of Bio Identical hormone replacement therapy since 2006.