What is the primary aim of an HMO's gatekeeping mechanism?

The primary aim of an HMO's gatekeeping mechanism is to ensure that patients receive care primarily from network providers. This system is designed to manage patient flow through a hierarchy of care. When a patient has a health concern, they typically first consult with a primary care physician (PCP) who acts as a gatekeeper. The PCP evaluates the patient's needs and determines whether a referral to a specialist or additional services is necessary. This approach not only streamlines care and maintains continuity but also helps to control costs by reducing unnecessary or duplicate services, as out-of-network referrals may incur additional expenses. By directing patient care through network providers, HMOs can better manage resources and ensure the quality of care provided falls within established parameters.