In an HMO, which service typically requires a referral from the primary care physician?

• A. Durable Medical Equipment
• B. Routine Physical
• C. Emergency Department Visit
• D. Diagnostic Imaging

Answer: (A)

In HMOs, the primary care physician acts as the gatekeeper, and many services tied to treatment plans or equipment require a physician’s referral to coordinate care and confirm medical necessity. Durable Medical Equipment fits this pattern because the equipment (like walkers, ramps, or crutches) must be prescribed by a physician and approved through the plan before it can be dispensed, ensuring it aligns with the patient’s medical needs and the coverage rules.

Routine physicals are preventive and typically scheduled directly with the primary care physician without needing a referral to another provider. Emergency department visits are accessed directly in urgent situations and don’t require referral. Diagnostic imaging can be ordered by a physician, but it generally involves an order and potential preauthorization rather than a referral to a different provider, depending on the plan.