Mass. Gen. Laws ch. 118I, § 6

Every patient shall have electronic access to such patient's health records. The executive office shall ensure that each patient will have secure electronic access to such patient's electronic health records with each of such patient's providers. The executive office shall ensure that the design of the statewide health information exchange includes the ability to transmit copies of electronic health records to patients directly or allow facilities to provide mechanisms for such patient to access such patient's own electronic health record.