Maryland Code, Insurance § 15-714

(a) This section applies to each individual or group health insurance policy, contract, or certificate that:

(b) Notwithstanding any other provision of a policy, contract, or certificate subject to this section, if the policy, contract, or certificate provides for reimbursement for a service that is within the lawful scope of practice of a licensed psychologist, the insured or any other person covered by the policy, contract, or certificate is entitled to reimbursement for the service regardless of whether the service is performed by a physician or licensed psychologist.