"Health care institution", (i) an individual, partnership, association, corporation or trust or a person or group of persons who provides health care services and employs health care providers subject to licensing under this chapter; or (ii) a retail establishment that sells pharmaceutical goods and services and is subject to regulation by the board of registration in pharmacy. For the purpose of this section, a retail establishment shall be considered a health care institution if it operates at a health care institution or has a health care institution located on or within its premises; provided, however, that a retail establishment that provides optician, optometric, hearing aid or audiology services but is not subject to regulation by the board of registration in pharmacy shall not be considered a health care institution.
"Retail establishment", a store that sells goods to the public.
Mass. Gen. Laws ch. 112, § 61A