{"ein":"900656139","kind":"nonprofit","verification":"irs-listed","name":"MASS GENERAL BRIGHAM INCORPORATED AND AFFILIATES GROUP RTN","ntee":"E21","city":"SOMERVILLE","state":"MA","revenue":23474745033,"assets":28265038595,"sourceName":"IRS Exempt Organizations Business Master File extract","sourceUrl":"https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf","lastChecked":"2026-07-05"}