There shall be a Health Department, the head of which shall be the Commissioner of Health. He shall be a physician licensed to practice medicine in the State of New York.
The Commissioner of Health shall be appointed for a term of four (4) years. He shall be under the direction and supervision of the Mayor. He shall be the chief health officer of the city.
The Commissioner of Health shall:
A. 
Be responsible for and shall supervise all public health activities of the city. He shall be responsible for and perform all duties prescribed by any law relating to public health of the State of New York.
B. 
Keep and maintain all vital statistics of the city, and prepare, attest and report on such vital statistics.