S.902 - Federal Government - A bill to provide support and assistance for families of members of the National Guard and Reserve who are undergoing deployment, and for other purposes.

Coming Together for National Guard and Reserve Families Act of 2007 - Directs the Secretary of Defense to enhance and improve Department of Defense (DOD) programs to provide family support for families of members of the National Guard and Reserve undergoing deployment (members). Requires such support to include post-deployment assistance for spouses and parents of returning members.

Directs the Secretary to: (1) conduct a pilot program of family-to-family support for families of such members; and (2) contract for support services for children, infants, and toddlers of such members.

Directs the Secretary and the Secretary of Veterans Affairs to jointly expand and enhance access to mental health services for families of members who are disabled during military service.

Requires a report from the Comptroller General to Congress on barriers to access to mental health services through TRICARE (a DOD managed health care program), including the number of providers under TRICARE that are located more than 40 miles from a military installation.