Md. Code Ann., Cts. & Jud. Proc. § 5-701

There shall be no liability on the part of and no cause of action of any nature shall arise against an insurer reporting under § 4-401 of the Insurance Article or its agents or employees, the Board of Physicians or its representatives, or any appropriate licensing board for health care providers for any action taken by them under § 4-401 of the Insurance Article.