SDCL § 36-4-23: Advertising and printed material to show type of practice for which licensed--Violation as misdemeanor.

No person practicing any of the healing arts shall use the title "doctor" or any contraction thereof, in connection with his business or profession, or any written or printed material, or in connection with any advertising, unless he add after his name the recognized abbreviation or specification of the branch of the healing art in which he is licensed to practice and is engaged. A violation of this section is a Class 1 misdemeanor.