Dr. Mark Christian and Deerfield Audiology are an example of a top-notch audiology practice. A high level of professionalism and customer service ‘above and beyond’ set them apart from other offices. Dr. Mark is wonderful to work with – he takes his time to explain, compare, adjust, and listen to your concerns. They recently helped me in an ’emergency’ situation when my dog chomped my hearing aid and I had an important event in a matter of hours. Not every office would have stepped up. A wonderful group that honestly cares about their patients