Sec. 6.15. MEDICAL EXAMINATION. (a) The board may require the following pensioners receiving a disability pension or a periodic disability compensation benefit to appear and undergo a medical examination by the health director or, if the health director approves, by any licensed medical practitioner, to determine if the pensioner's disability continues or has been removed to the extent that the pensioner is able to resume duties with the department:

(1) any Group A pensioner who has served less than 20 years;

(2) any Group A pensioner who elected a Group A disability pension under Section 6.04 of this article, periodic disability compensation under Section 6.05 of this article, or a non-service-connected disability pension under Plan A or former Section 17(b)(2) of this article, and who had more than 20 years of pension service, but is less than 55 years of age; and

(3) any Group B pensioner who was granted a Group B disability pension under Section 6.04 of this article or periodic disability compensation under Section 6.05 of this article or a disability pension under the terms of Plan B and is less than 50 years of age.

(b) Any medical examination under this section is subject to the following conditions:

(1) Except as otherwise provided by this section, the board has complete discretion to require a pensioner to appear and undergo a medical examination as well as the time that may pass between examinations. When it becomes clear to the board from reliable medical evidence that the disability is unequivocally permanent and is not expected to diminish, the board may waive subsequent examinations.

(2) A pensioner may not be required to undergo a medical examination more often than once in a six-month period, except that the board may order the pensioner to undergo an examination at any time if the board has reason to believe the pensioner's disability has been removed and that the pensioner may be able to resume duties with the pensioner's former department or if the pensioner requests to be allowed to return to duty.

(3) If a pensioner fails to undergo an examination after being notified by the board that the examination is required, the board may discontinue disability benefits until the pensioner has undergone the examination and the results of the examination have been sent to the board.

(4) If the pensioner is examined by an approved outside medical practitioner other than the health director, the reasonable and customary cost of the examination, if any, is payable from the assets of the fund.

(c) After a pensioner has undergone a medical examination, the health director shall provide the board with a report of the pensioner's present medical condition together with the doctor's opinion as to whether the pensioner continues to be disabled or whether the pensioner is no longer disabled to the extent that the pensioner could resume duties with the pensioner's former department. The report and opinion may be divulged only to persons who have a legitimate need for them.

(d) If, in the opinion of the health director, the pensioner continues to be disabled, the board must continue payment of benefits. If, in the opinion of the health director, the pensioner is no longer disabled, or is not so disabled that the pensioner could not perform some duties for the pensioner's former department, the board shall notify the department to determine if a position is available. If a position is available, the board shall notify the pensioner to return to duty. Disability benefits shall continue to be paid, however, until the pensioner returns to active service. However, if the pensioner refuses to return to duty or is refused employment by either department for reasons other than disability, the board shall order disability payments stopped. If a position is not available, the board must continue payments of the pensioner's disability pension.

(e) Pursuant to its authority under Section 6.06(o-2) of this article to review and modify any funding relating to the disability of a child who is a qualified survivor, the board may require the qualified survivor with a disability receiving death benefits to appear and undergo medical examination by the health director or, if the health director approves, by any licensed medical practitioner, to determine if the disability continues or if the disability has been removed.