Mass General Brigham Incorporated is located in Somerville, MA. The organization was established in 2010. According to its NTEE Classification (E21) the organization is classified as: Community Health Systems, under the broad grouping of Health Care and related organizations. This organization is a subordinate organization within an affiliated group for tax-exemption purposes. Mass General Brigham Incorporated is a 501(c)(3) and as such, is described as a "Charitable or Religous organization or a private foundation" by the IRS.