I found this too..
Midwife/Home Birth Coverage Clarification
In response to requests by our members, we are clarifying our position on care given by certified professional midwives and other types of midwives. Home births are not the standard practice of care in Massachusetts, and therefore, our benefits are specific to certified nurse midwives (CNMs), and cover only the services that these clinicians provide.
In addition, any home births taking place in Massachusetts on or after October 1, 2009, will only be covered when the delivery is made in the home in an emergency or unplanned situation and when rendered by a network provider (i.e., CNM, obstetrician).
Unplanned births are those in which circumstances prevent the mother from delivering at a hospital or birthing center. To seek care in such a situation, the mother should call 911 if appropriate, and/or her certified nurse midwife or obstetrician (or their covering provider).