… needing assistance using their Exxat Approve accounts should contact prism-support [at] exxat.com (prism-support[at]exxat[dot]com) . Contact Information StudentCompliance@mghihp.edu (617) 724-1254 Immunization … needing assistance using their Exxat Approve accounts should contact prism-support [at] exxat.com (prism-support[at]exxat[dot]com) . Contact Information …