Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 176C, § 17

Nothing herein shall be construed to prohibit the providing of medical services by an educational or other charitable institution to the persons whom it serves, nor to prohibit any business organization from providing medical services for its employees, nor to prohibit an insurance company, or other corporation or society which is subject to the supervision of the commissioner of insurance, from operating in accordance with the laws governing insurance companies or such corporations or societies.