As Medicare premiums rise, a Medicare Advantage plan can seem like an attractive option. But if you are considering switching from Original Medicare to a Medicare Advantage plan, you need to know what to look for.

Medicare Advantage plans are run by private insurers, unlike Original Medicare, which the federal government operates, although the medical providers are private. The government pays Medicare Advantage plans a fixed monthly fee to provide services to each Medicare beneficiary under their 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.

To compare Advantage plans, go to the Medicare Plan Finder at Medicare.gov. When deciding whether a Medicare Advantage plan is right for you, the following are the main factors to consider:

• Cost. Since Medicare Advantage plans are offered by private insurers, the cost of the plan varies depending on where you live. While Medicare Advantage plans usually have lower premiums than paying for Original Medicare plus a Medigap plan, they can have higher deductibles and co-pays in certain circumstances, so you need to take those into account when calculating the cost of each plan. Medicare Advantage plans do have a cap on out-of-pocket costs, while Original Medicare does not. Check the annual maximum out-of-pocket costs for the plan. If you have a high level of health costs, a low out-of-pocket maximum may be the best option.
• Coverage. What coverage does the plan offer? Medicare Advantage plans must cover everything that Original Medicare covers, but some plans offer additional benefits, such as dental, hearing, and vision. Plans may require your doctor to get approval for certain procedures. If the plan administrators disagree with your physician that a procedure is medically necessary, the plan may refuse to pay for it.You will want to find out how the plan is about approving treatments, referring patients to specialists or allowing patients to remain in the hospital if they are not ready to leave. You may want to check with your doctor to find out their experience with the plan and whether the plan frequently overrules the doctor.
• Doctors. Original Medicare does not have any restrictions on which doctor you use, but Medicare Advantage plans are HMOs and PPOs, meaning that not every doctor accepts the insurance. With an HMO, if you visit a doctor outside of the network, you will likely have to pay out of pocket (except in an emergency). With a PPO, you can usually see any doctor you want, but you will pay less for an in-network doctor. You will want to check if your doctor and hospital are part of the plan’s network. The best way to do this is to call your doctor’s office to confirm.
• Prescription drugs. Most Medicare Advantage plans include prescription drug coverage, so you should check to make sure the plan covers all the medications you take. You should also check if you need any special authorizations for any of your medications or if there any limits on the amount you can get. Other questions include whether your pharmacy is a preferred provider and whether you can get prescriptions by mail.
• Quality of care. The Medicare Plan Finder includes a rating system that measures how well the plan manages health screenings and chronic conditions as well as how many customer complaints it receives, among other things. The ratings aren’t perfect, but they can give you an idea of plan’s quality.