Section 410-A. Deduction of group plan insurance or medicare premiums from benefits

Notwithstanding anything to the contrary contained in section
  four hundred ten of this act, the comptroller is  hereby  authorized  to
  deduct  from the retirement allowance of any retired member, such amount
  as the retired member may specify in writing filed with the  comptroller
  for  the  payment  of  any insurance premiums written on the group plan,
  covering only such insurance in which the employer as defined in section
  three hundred two of this article contributes, and to transmit the  sums
  so  deducted  to  the  company carrying such insurance or its authorized
  representative. The comptroller is further authorized to deduct from the
  retirement allowance of any retired member such amount  as  the  retired
  member may specify in writing filed with the comptroller for the payment
  of  any insurance premiums due for medicare, and to transmit the sums so
  deducted  to  the  agency  for  the  federal  government  authorized  to
  administer  the  medicare program. Any such written authorization may be
  withdrawn by such retired member at any time upon filing notice of  such
  withdrawal with the comptroller.