Tantallon Assisted Living Fort Washington, MD - Assisted Living Community size: Small (1-10) Get Prices & Availability (800) 341-4753 Office Tantallon Assisted Living is an appealing assisted living community in Fort Washington, Maryland. It is within pleasing Prince Georges County which is part of the Old Line State. + Read more Share this listing: Full Screen Gallery Fort Washington Senior Services Near Me None Listed Fort Washington Senior Living Near Me