Md. Code, Health Occupations § 14-602

(a) Unless authorized to practice medicine under this title, a person may not represent to the public, by description of services, methods, or procedures, or otherwise, that the person is authorized to practice medicine in this State.

(b) Except as otherwise provided in this article, a person may not use the words or terms “Dr.”, “doctor”, “physician”, “D.O.”, or “M.D.” with the intent to represent that the person practices medicine, unless the person is:

(1) Licensed to practice medicine under this title;

(2) A physician licensed by and residing in another jurisdiction, while engaging in consultation with a physician licensed in this State;

(3) A physician employed in the service of the federal government while practicing within the scope of the employment;

(4) A physician who resides in and is licensed to practice medicine by any state adjoining this State and whose practice extends into this State;

(5) An individual in a postgraduate medical program that is accredited by an accrediting organization recognized by the Board in regulations while the individual is practicing medicine in the program; or

(6) A licensee who is on emeritus status under § 14–320.1 of this title, provided that the licensee does not represent to the public that the licensee is authorized to practice medicine in the State.

(c) An unlicensed individual who acts under § 14–302 or § 14–306 of this title may use the word “physician” together with another word to describe the occupation of the individual as in phrases such as “physician’s assistant” or “physician’s aide”.