Office Location. 827 E. Lamar Alexander Parkway Maryville, TN 37804 OrthoTennessee Maryville is located at 827 East Lamar Alexander Parkway. In Maryville, Lamar Alexander Parkway is the street name for Highway 321, which runs from Lenoir City, past Foothills Mall, through the city of Maryville, and leads to the Great Smoky Mountains and Townsend..