(a) Upon written request from the patient, the provider having custody and control of the patient's record shall furnish a complete and current copy of that record, in accordance with the provisions of this Code section.

(b) Any record requested under subsection (a) of this Code section shall be furnished within a reasonable period of time to the patient, any other provider designated by the patient, or any other person designated by the patient.

(c) If the provider reasonably determines that disclosure of the record to the patient will be detrimental to the physical or mental health of the patient, the provider may refuse to furnish the record; however, upon such refusal, the patient's record shall, upon written request by the patient, be furnished to any other provider designated by the patient.