In any case where an employee makes a claim against her employer for any compensation to which she is entitled as a result of the accumulation of disability or leave benefits accrued pursuant to plans maintained by her employer, including any insurance or other disability plans referred to in ARM 24.9.1206 and the claim is based on a disability covered by and defined in Title 49, Chapter 2, MCA, and these regulations, the employer may require that the disability be verified by medical certification by a physician competent to treat and diagnose the particular disability, that the employee is, or at the time for which the claim is made, was unable to perform her employment duties. For purposes of obtaining this medical certification the employer may require that the claimant submit to a physical or mental examination by a medical doctor to verify the claimed disability by medical certification.