doctorMedicare Advantage plans are a popular alternative to regular Medicare because the plans often offer lower out-of-pocket costs, but buyers need to make sure they know what they are paying for. A government review of Medicare Advantage plans revealed that their provider directories were often riddled with errors, causing those plans to face serious fines.

Medicare Advantage plans are provided by private insurers, unlike original Medicare, which is provided by the government. The government pays Medicare Advantage plans a fixed monthly fee to provide services to each Medicare beneficiary under their care. These plans are usually health maintenance organizations (HMOs) or preferred provider organizations (PPOs) that only cover care provided by doctors in their network or charge higher rates for out-of-network care. The plans often look attractive because they offer the same basic coverage as original Medicare plus some additional benefits and services that original Medicare doesn’t offer.

Because Medicare Advantage plans have different coverage rules for out-of-network care, it is important to know which doctors and hospitals are in a plan’s network. However, the Centers for Medicare & Medicaid Services (CMS) conducted a review of online provider directories for Medicare Advantage plans and found that there was incorrect information for half of the 5,832 doctors listed in directories for 54 Medicare Advantage plans that represented a third of all Medicare Advantage providers.

As a result of the review, CMS warned 21 Medicare Advantage insurers to fix the errors by February 6, 2017, or face serious fines. In 2016, CMS enacted a rule requiring plans to contact doctors and providers every three months to update their online directories. A Medicare Advantage plan can face a penalty of up to $25,000 a day per beneficiary if errors aren’t corrected.

Before purchasing a Medicare Advantage plan, you should double check with the doctors and hospitals you use that they are covered by the insurance.

For an article from PBS.org about errors in Medicare Advantage plans, click here.