Safe Integration of Physician Assistants in German Ambulatory Care: A Narrative Review and Practical Supervision Framework.

Physician Assistants (PAs) are increasingly discussed as a potential component of ambulatory care teams in Germany, particularly in response to physician workforce shortages, rising clinical and administrative workloads, and the need for sustainable team-based care models. However, international experience suggests that the integration of PAs should not be viewed primarily as a simple workforce expansion strategy, but rather as a matter of patient safety, role clarity, supervision, and governance. Ambiguous professional titles, unclear delegation boundaries, inadequate physician oversight, and the use of PAs as substitutes for physicians in undifferentiated clinical encounters may create avoidable safety risks and undermine trust among patients and healthcare professionals. This narrative review summarizes relevant international evidence, recent safety-oriented regulatory developments, and the specific legal and organizational context of German ambulatory care. It also proposes a practical supervision framework for the safe integration of PAs into general practices, specialist practices, professional practice partnerships, and medical care centers. The proposed framework emphasizes six key domains: transparent role identification, clearly defined delegation boundaries, tiered supervision, structured escalation criteria, documentation standards, and continuous quality monitoring. PAs may contribute meaningfully to ambulatory care when integrated as supportive members of physician-led teams. Safe implementation requires that delegated practice remains clearly distinct from autonomous substitution, that physicians retain overall clinical responsibility, and that patients clearly understand the professional role of the individual providing their care.