Md. Code, Health - General § 19–225

(a) In any matter that relates to a facility’s cost of services and consistent with the all–payer model contract, the Commission may:

(1) Hold a public hearing;

(2) Conduct an investigation;

(3) Require the filing of any information; or

(4) Subpoena any witness or evidence.

(b) The Executive Director of the Commission may administer oaths in connection with any hearing or investigation under this section.