Md. Code, Health - General § 19–725

(a) A health maintenance organization may not cancel the enrollment of a member or refuse to transfer a member from a group to an individual basis because of age, sex, sexual orientation, gender identity, religious beliefs, disability, race, or health status.

(b) A health maintenance organization may cancel a contract with a member who violates any published policy of the health maintenance organization that has been approved by the Commissioner and the Department under their joint internal procedures.