Who among the care team is responsible for diagnosing disease and prescribing treatment?

The physician, often referred to as an MD (Doctor of Medicine), is the professional responsible for diagnosing diseases and prescribing treatments. This is a foundational aspect of medical practice, as the physician uses their extensive training and knowledge to assess a patient's condition, interpret diagnostic tests, and determine an appropriate course of action for treatment.

Physicians must complete significant education and training, including medical school and residency, which equips them with the skills necessary to make complex medical decisions. This ensures that they are capable of accurately diagnosing various health issues and considering the best therapeutic options available.

The other roles listed—nursing assistants, physical therapists, and social workers—have distinct responsibilities that do not include diagnosing diseases or prescribing treatments. Nursing assistants provide essential caregiving support but work under the direction of nurses or physicians. Physical therapists focus on rehabilitation and recovery through specific exercise regimens and therapies. Social workers address the social and emotional aspects of a patient's care and provide support with services but do not have the authority to diagnose medical conditions or prescribe treatments.