Medicare Prior Authorization: What You Need to Know

When you need a medical procedure, test, or treatment, you might assume your doctor's recommendation is all you need. But depending on how you get your Medicare coverage, you may also need permission from your insurance company before they will pay for it. This process is called prior authorization.

Prior authorization is a requirement that your healthcare provider obtain approval from your health insurance plan before delivering a specific service or medication. If this approval isn't granted, the insurance company can refuse to cover the cost, leaving you responsible for the bill.

The way prior authorization works depends entirely on which Medicare path you choose. Remember, the real choice is Traditional Medicare (Parts A and B) versus Medicare Advantage (Part C). It's not a choice between a supplement and Advantage; a supplement is just a component of the Traditional path.

Under Traditional Medicare, prior authorization is rarely required. For the vast majority of covered services, if your doctor accepts Medicare and determines a service is medically necessary, Medicare will cover its share of the cost without needing advance approval. There are a few exceptions, such as certain non-emergency ambulance services or specific power wheelchairs, but these are uncommon. When you pair Traditional Medicare with a Medigap plan, the supplement fills the gaps by law - if Medicare approves the claim, the supplement must pay its share.

This is where the rubber meets the road. If you want straight answers and no surprises, Traditional Medicare puts the decision-making power in the hands of you and your doctor, not an insurance company clerk.

On the other hand, if you choose a Medicare Advantage plan, prior authorization is a standard part of the process. Because these plans are managed by private insurance companies, they use prior authorization to control costs and ensure services are medically necessary according to their own guidelines.

You may need prior authorization for a wide range of services under Medicare Advantage, including:

• Inpatient hospital stays
• Skilled nursing facility care
• Specialized imaging (like MRIs or CT scans)
• Certain prescription drugs (Part D)
• Outpatient surgeries
• Durable medical equipment

If your Medicare Advantage plan denies a prior authorization request, you have the right to appeal the decision. The appeals process involves multiple levels, starting with a request for the plan to reconsider and potentially escalating to an independent review entity or an administrative law judge. However, this process can be time-consuming and stressful when you're trying to get the care you need.

Understanding how prior authorization works is crucial when deciding between Traditional Medicare and Medicare Advantage. It's one of the key differences in how you access care and who has the final say in your medical treatments.