ER font here refers to the font used in the title of ER, which is an American medical drama television series first aired on NBC in 1994. The TV series centers on the inner life of the emergency room(ER) in a hospital and various critical issues there.
The font used for the title of the show is probably Bank Gothic Medium designed by Morris Fuller Benton. The font is a commercial one and you can view more details about it here.
Download Bank Gothic Font
The Bank Gothic font identified above is not available for free, please follow the link above and purchase a font license to download and use the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.