In the state of MA can a NCP who was order to provide health insurance for his children receive a reduction in his child support if his CURRENT wife carries his NEW families health coverage?

My EX husband's new wife has a child from a previous marriage as well as 2 additional child from their marriage.
She recently obtained health insurance from her employer (my EX is self Employed) which covers the 5 members in their household as well as my 3 children. Can my ex husband get credit for the entire premium she is paying for this health insurance coverage?