In HMOs, who acts as the gatekeeper to manage care and referrals?

• A. Specialist
• B. Nurse
• C. Primary Care Physician (PCP)
• D. Payment coordinator

Answer: (C)

In an HMO, the gatekeeper is the primary care physician. The PCP is the first point of contact, evaluates the patient’s overall health needs, coordinates and approves referrals to specialists or additional services, and ensures care stays within the network and is medically necessary. This role controls costs and streamlines care by preventing unnecessary specialist visits and tests, while emphasizing preventive care and coordinated treatment.

A specialist is not the gatekeeper because specialists focus on specific conditions and typically become involved only after the PCP refers the patient. A nurse may provide triage and support, but the formal authorization and coordination of referrals come from the PCP. A payment coordinator handles billing and payments, not clinical decisions about referrals or care management.