Answer: managed care organization
Explanation:
A managed care organization can be defined as a health care provider or a group of organizations that provide medical services. These often provide the managed health care plans.
The managed health care organizations develop contracts with the insurers or self-insured employees, finances that delivers the health care using care provider network, products and specific services. It provides discounts in treatments.
I think it is... Mouth, stomach, large intestine, small intestine. Hope I'm right!