ACENTA : Arkansas Center for Ear, Nose, Throat and Allergy offers the most comprehensive ENT, Allergy, Hearing Aid and Hearing & Balance services in the Northwest Arkansas and Eastern Oklahoma region. Dr. Marsh has been voted by his peers as one of the BEST ENT doctors in the United States. He has subspecialty training as an ear specialist. Dr. Marsh is also a Center of Excellence for Entellus teaching other physicians around the country advanced in office sinus surgery. He is one of 12 such physicians in the United States.