Zoom in to any point on the map by clicking the gray (+) button in the upper-left corner. The list of CORHIO's participating providers below the map will narrow based on the viewable area of the map as you zoom in, or expand as you zoom out. You can sort any of the columns by clicking the column header. For example, you can sort the list alphabetically by participant name.
Individual physicians are generally not listed by name, but instead by their office name.
If the map is not working for you, you may need to download a newer version of Internet Explorer or Firefox.