Final answer:
A Physician-Hospital Organization (PHO) is the structure where hospitals and physician groups jointly manage contracts with managed care plans, allowing physicians to retain their own practices while serving plan members.
Step-by-step explanation:
The entity owned by hospitals and physician groups that obtain managed care plan contracts, where physicians maintain their own practices and provide health care services to plan members, is known as a Physician-Hospital Organization (PHO). These entities allow for contracting with managed care organizations on a collective basis while the physicians retain their private practices and direct patient care. In contrast to other types of health plans such as Health Maintenance Organizations (HMOs), Preferred Provider Organizations (PPOs), Primary Care Physicians (PCPs), and Point of Service (POS) plans, PHOs are structured to facilitate closer cooperation between hospitals and physicians in negotiating with managed care organizations.