Which healthcare provider primarily offers care across various patient age levels?

A family practitioner is the correct choice because this type of healthcare provider is trained to deliver comprehensive and continuous care for patients of all ages, from infants to the elderly. They are equipped to handle a wide range of health issues and are knowledgeable in preventive care, diagnosis, and treatment across various conditions that can affect patients at different life stages.

In contrast, a chiropractor typically focuses on diagnosing and treating musculoskeletal disorders, primarily dealing with the spine and joints, and while they may see patients of all ages, their scope is much more limited compared to family practitioners. A hematologist specializes in blood-related disorders and generally focuses on adults and older children with specific conditions, thus not covering the entire age spectrum. A gynecologist primarily provides care related to female reproductive health and usually treats women, thus excluding male patients and other age groups from their primary care scope.