Consumer-based, community-controlled, nonprofit outpatient facilities that provide basic health care including physical examinations, immunizations, family planning, nutrition assistance and diagnosis and treatment of common ailments for low income people, people who are homeless or uninsured/underinsured or other medically underserved populations that are geographically, economically and culturally challenged. Services are generally provided on an ability-to-pay basis. In the U.S., most community clinics are part of the network of Federally Qualified Health Centers, and many are known as "free clinics".

Programs that provide primary oral health care for patients of all ages. General dentists are responsible for the diagnosis, treatment, management and overall coordination of specialized services related to the patient's oral health needs. Services generally include an oral health history, preventive dental cleanings, dental radiographs, oral cancer screening, an examination of the teeth to detect tooth decay or other problems, a periodontal examination to detect gum disease, dental restorations (e.g., fillings, crowns and implants), cosmetic dentistry, and other procedures such as fluoride treatment.

Programs that are staffed by specialists in the field of medicine that is concerned with the total health of the individual within the home environment and in the community. Practitioners of family and community medicine provide comprehensive medical care including preventive services with particular emphasis on the family unit, in which the physician's continuing responsibility for health care is not limited by the patient's age or gender, nor by a particular organ system or disease entity.

Individuals who are generally between the ages of 18 and 25 depending on the ages that specific programs use for qualification.