Maryland Code, Insurance § 14-136

(a) Nonprofit health service plans are subject to Title 27 of this article.

(b) A corporation authorized under this subtitle that maintains or operates a nonprofit health service plan may not:

(c) If it appears to the Commissioner that an act or practice or proposed act or practice of a corporation authorized under this subtitle that maintains or operates a nonprofit health service plan is in violation of subsection (b) of this section or Title 27 of this article, the burden of persuasion is on the corporation to show that the act or practice or proposed act or practice is not in violation of subsection (b) of this section or Title 27 of this article.