Final answer:
A group model HMO is a type of Health Maintenance Organization where services are provided to members by physicians from an independent multispecialty group practice.
Step-by-step explanation:
The type of Health Maintenance Organization (HMO) where contracted health care services are delivered to subscribers by participating physicians who are members of an independent multispecialty group practice is known as a group model HMO. In this model, the HMO contracts with an independent practice to provide services to its members. This stands in contrast to other types of HMOs, such as the staff model, direct contract model, and individual practice association model, each having different contractual relationships and methods of delivering healthcare services.