Maryland Code, Labor and Employment § 9-733

(i) the covered employee has returned to the current employment of the covered employee;

(ii) a treating physician chosen by the covered employee has advised the covered employee that the covered employee has reached maximum improvement from the disability of the covered employee; or

(iii) the termination is made after the termination date contained in an order of the Commission.

(i) the treatment by a physician or health care provider was not authorized by an insurer or self-insurer; or

(ii) a treating physician or health care provider chosen by the covered employee has advised the covered employee that the covered employee has reached maximum medical improvement from the disability of the covered employee.

(b)(1)(i) Before terminating the payment of temporary total disability benefits, an insurer or self-insurer shall give the covered employee written notice of the date that the benefits are to be terminated.

(ii) Before terminating the payment of medical benefits, an insurer or self-insurer shall give the covered employee and the covered employee's treating physician or health care provider written notice of the date that the benefits are to be terminated.

(i) the reasons for the termination;

(ii) that the covered employee has a right to request a hearing before the Commission on the issue of the termination; and

(iii) the procedure and time for requesting a hearing.