A-1 Nursing Care of Columbus, Ohio is a certified home health care agency that operates in Central Ohio. A-1 is a responsible, experienced, and well managed agency that has been in existence for more than twenty years. The care givers that work for us are some of the best that the region has to offer. They are as diverse as they are capable. with a high standard of professionalism that allows them to care for clients in a manner that is beyond satisfactory.