U.S. — State medical boards in the United States have implemented restrictions preventing artificial intelligence (AI) applications from prescribing medications and ordering medical tests. This action establishes boundaries for AI's direct involvement in critical medical decisions within the U.S. healthcare system.

While AI has advanced to assist in diagnostic, administrative, and patient-facing roles, these regulations delineate specific areas where human oversight remains mandated, particularly concerning direct patient treatment such as prescribing medications and ordering tests.

AI technology currently assists doctors in fields such as radiology and pathology. These systems also read patient messages found within electronic medical records and propose suggested responses. In administrative capacities, AI tools aid in healthcare billing, coding, and scheduling.

Beyond professional medical use, patients utilize chatbots and agentic AI programs to interpret symptoms and understand lab results. Some companies provide applications that allow patients to pay a fee to engage with an algorithm for differential diagnoses. AI systems have also shown the ability to pass national board examinations for medicine.