Medical professionals at rural clinics are being pushed into a new "Cognitive Enclosure" as OpenAI released a free version of ChatGPT for Clinicians. The tool is marketed as a desperate solution for providers whose hospitals do not offer centralized AI systems, allowing them to obtain "cited answers from medical sources" at the point of care. According to OpenAI’s statement, the platform supports "evidence review, personalized diagnosis and treatment considerations." This release follows the launch of GPT-5.5, which the company claims is its most advanced model for "agentic coding" and law. In a physical landscape of overcrowded waiting rooms and paper-thin insurance networks, the doctor’s intuition is being replaced by a corporate interface. The move to provide a free diagnostic tier for clinicians reflects a broader strategy to enclose medical knowledge within proprietary models. While the AI offers citations to journals for verification, it creates a structural dependency on a black-box system that can be gated or monetized at any moment. This is the deskilling of the medical professional, where the art of healing is reduced to a series of prompts. Read together, the release of GPT-5.5 and the clinical portal represent the final enclosure of the professional commons. The expertise of the human doctor is being harvested to train the very machines that will eventually render their traditional labor obsolete. The causal link between the failure of public health funding and the rise of