The ENT Center of Round Rock, Serving Cedar Park, Austin and Central Austin, Texas. Home of the Sinus Center of Excellence specializing in the Balloon Sinuplasty.The ENT Center of Round Rock is Austin’s premier adult and pediatric otolaryngology clinic. The specialists are dedicated to providing compassionate and comprehensive care for a wide range of ear, nose, and throat (ENT) and allergy problems. We achieve this through a commitment to integrity, high ethical conduct, professionalism, and a promise to uphold the highest standards of care for our patients.