; (B) 2 shall be representatives of entities that provide health insurance and contribute to the co-funding of the Fund for Medical Innovation Prizes under section 17; (C) 2 shall be representatives of the medical research and development sector, including at least 1 representative of the nonprofit private medical research and development sector; and (D) 3 shall be representatives of consumer and patient interests, including at least one representative of patients suffering from orphan diseases. (c) Terms (1) In general Except as provided in paragraph (2), each member appointed to the Board under subsection (b)(5) shall be appointed for a term of 4 years. (2) Terms of initial appointees As designated by the President at the time of appointment, of the members first appointed to the Board under subsection (b)(5)— (A) 5 members shall be appointed for a term of 4 years; and (B) 4 members shall be appointed for a term of 2 years. (d) Vacancies Any member of the Board appointed to fill a vacancy occurring before the expiration of the term for which the member's predecessor was appointed shall be appointed only for the remainder of that term. A member of the Board may serve after the expiration of that member's term until a successor has taken office. (e) Compensation and travel expenses (1) Compensation Members of the Board shall each be paid not less than the daily equivalent of level IV of the Executive Schedule for each day (including travel time) during which they are engaged in the actual performance of the duties of the Board. (2) Travel expenses Each member of the Board shall receive travel expenses, including per diem in lieu of subsistence, in accordance with applicable provisions under subchapter I of chapter 57 of title 5, United States Code. (f) Chairperson