The Health Service System Board consists of seven members. Three Commissioners are elected. Four appointed Commissioners are comprised of a San Francisco Supervisor, two selected by the Mayor and one selected by the City Controller. Submit a comment to the Health Service Board by email: firstname.lastname@example.org or phone: 1-415-554-0662. You may also mail a letter to: Board Secretary, Health Service System, 1145 Market Street 3rd Floor, San Francisco, CA 94103.