Final answer:
The HMO model where physicians are employees is known as the Staff model. Here, physicians are salaried employees who provide care to HMO subscribers directly.
Step-by-step explanation:
The question refers to a health maintenance organization (HMO) where physicians are employees of the HMO. The correct answer to which HMO model this describes is c. Staff model. In the staff model of an HMO, the healthcare providers, including physicians, are salaried employees.
They provide care to the HMO's subscribers directly. This is different from models such as Independent Practice Association (IPA), where the physicians are in private practice and have contracts with the HMO to provide care, or Preferred Provider Organizations (PPOs) where they have an agreement to provide care at discounted rates but aren't directly employed by the HMO.