Medical Officer of Health, Medical Health Officer or District Medical Officer, is a title commonly used for the senior government official of a health department or agency, usually at a municipal, county/district, state/province, or regional level. The post is held by a physician who serves to advise and lead a team of public health professionals such as environmental health officers and public health nurses on matters of public health importance.
The equivalent senior health official at the national level is often referred to as the Chief Medical Officer, although the title varies across countries, for example known as the Surgeon General in the United States and the Chief Public Health Officer in Canada.
In Canada, all communities are under the jurisdiction of an MOH. The roles of the MOH vary across jurisdictions, but always include responsibilities related to public health and safety, and may include the following functions:
Health officers in India are expected to have prescribed qualifications, such as a Bachelor of Sanitary Science (B.S.Sc.), a degree of an institution recognized by the Medical Council of India or a diploma in Public Health after a 2-year study at the University of Calcutta.
In the United Kingdom, the municipal position was an elected head of the local board of health, however the term MOH has also been used to refer to the Chief Medical Officer. Under the Metropolis Local Management Act 1855, London municipalities were each required to appoint a medical officer. In 1856, 48 officers took up appointments in the city, and these specialists formed Metropolitan Association of Medical Officers of Health. They were important and influential in the establishment of municipal hospitals under the provisions of the Local Government Act 1929. In the 1974 NHS reorganisation they were replaced by Community Physicians who were attached to the different levels of the NHS.