Maryland Code, Health Occupations § 1-227

(b) A health occupations board may not revoke, suspend, discipline, take an adverse action against, or refuse to issue or renew a license, certification, or other authorization to practice for any health care practitioner in whole or in part because of the provision or support of the provision of legally protected health care if the legally protected health care was provided in accordance with the standard of care as determined by the relevant health occupations board established under this article and in accordance with the laws of this State;

(c) A health occupations board may not revoke, suspend, discipline, take an adverse action against, or refuse to issue or renew a license, certification, or other authorization to practice for any health care practitioner if the health care practitioner is disciplined by a licensure board in another state in whole or in part because of the provision or support of the provision of legally protected health care if the legally protected health care was provided in accordance with the standard of care as determined by the relevant health occupations board established under this article and in accordance with the laws of this State.