Maryland Code, Health Occupations § 14-315

(1) Provides medical services to patients for which the physician receives no personal remuneration;

(2) Is not engaged in the private practice of medicine; and

(3) Otherwise qualifies for a license under this title.

(c)(1) If, at any time, a physician licensed under this section ceases to meet the requirements of subsection (a)(1) or (2) of this section, the licensee shall notify the Board of the status change.

(2) On receipt of this notice, the Board shall charge the physician the license fee otherwise required under this subtitle.