How Medicare Advantage Networks Work

What a Medicare Advantage network is and why it matters

A Medicare Advantage network is the list of doctors, hospitals, and other providers that your insurance plan has contracted with. When you see someone in the network, your costs are lower — usually a copay of $10 to $50 per visit. When you see someone outside the network, you pay more, sometimes the full bill.

The network is the main difference between Medicare Advantage and Original Medicare. With Original Medicare, you can see almost any doctor who accepts Medicare, anywhere in the country. With Medicare Advantage, you're limited to the plan's network in your area, with rare exceptions for emergencies or urgent care.

This matters because it affects where you can go for routine care, specialists, and hospital stays. Before you choose a plan, you need to know whether your current doctors are in it.

Key Takeaways

• Each Medicare Advantage plan has its own network of doctors and hospitals, and you pay less when you use them.
• You can see out-of-network providers in emergencies and urgent situations, but you'll pay more or the full cost.
• Networks change every year, so a doctor who was in your plan last year may not be this year.
• You can check whether your doctors are in a plan's network before you enroll by using the plan's provider search tool on its website.
• If your doctor leaves the network mid-year, you have the right to switch plans outside the normal enrollment period.

How in-network and out-of-network costs work

In-network providers have agreed to accept what Medicare Advantage pays them, and you pay only your share — usually a copay. For example, a visit to an in-network primary care doctor might cost you $10, and the plan pays the rest. A specialist visit might be $40 to $60.

Out-of-network providers haven't made that agreement. You may have to pay the full bill upfront and then try to get reimbursed, or the plan may refuse to pay at all. Some plans cover out-of-network care at a higher copay or coinsurance (a percentage of the cost), but you need to check your plan's rules.

Emergency care is different. If you go to an out-of-network emergency room, the plan must cover it at the in-network cost. Urgent care — a sprain, a minor infection, something that needs same-day attention but isn't life-threatening — is also usually covered out-of-network, though you'll pay more than the in-network copay.

How to learn about your doctors are in a plan's network

Each plan publishes a provider directory on its website. You can search by doctor name, specialty, or location. The directory shows which doctors are accepting new patients and which ones are in the network.

Call the plan directly if the website search doesn't give you a clear answer. The plan's customer service number is on its website. Tell them your doctor's name and ask whether that doctor is in the network for the coming year. Ask specifically: "Is Dr. [name] accepting Medicare Advantage patients in [your county] starting January 1st?" Networks can vary by county, and a doctor might be in the network in one part of your state but not another.

If your doctor is not in the network, ask whether they're in any other Medicare Advantage plans in your area. Your doctor's office can also tell you which plans they accept. This conversation is worth having before you enroll, not after.

What happens when your doctor leaves the network mid-year

If your doctor leaves the network after you've enrolled, you have options. Medicare allows you to switch to a different Medicare Advantage plan outside the normal enrollment period — this is called a "may have access to life event." You have 60 days from the date your doctor left the network to make the switch.

You don't have to switch plans. You can stay with your current plan and find a new doctor in the network, or you can pay out-of-network rates to keep seeing your current doctor. But if staying with your doctor matters to you, switching plans is usually the simpler choice.

Contact your plan as soon as you learn your doctor is leaving. The plan can tell you the exact date the change takes effect and confirm your 60-day window to switch. Then you can compare other plans in your area to find one that includes your doctor.

How networks differ between plan types

Most Medicare Advantage plans are HMOs (Health Maintenance Organizations). HMOs have smaller networks and require you to pick a primary care doctor. You need a referral from your primary care doctor to see a specialist. Out-of-network care is usually not covered except in emergencies.

PPOs (Preferred Provider Organizations) have larger networks and don't require a primary care doctor or referrals. You can see specialists directly. Out-of-network care is covered at a higher cost, but it is covered. PPOs usually have higher monthly premiums than HMOs.

PFFS plans (Private Fee-for-Service) work differently — they don't use a network at all. You can see any doctor who accepts the plan's payment terms. These are rare and not available in all areas.

The network size and structure affect your costs and your freedom to choose doctors. An HMO saves money if you're willing to use the network and get referrals. A PPO costs more but gives you more flexibility.

How networks change from year to year

Medicare Advantage plans can change their networks every January 1st. A doctor who was in your plan this year might not be next year. A hospital might drop out. A new specialist might join.

Plans must send you a notice by September 30th if your doctor or hospital is leaving the network for the next year. If you get this notice, you have time to decide whether to stay with the plan and find a new provider, or switch to a different plan.

This is why it's important to check the network every year during open enrollment, even if you've been happy with your plan. Search for your main doctors and any specialists you see regularly. If key providers are leaving, you can switch to a plan that keeps them.

What to do if you can't find a specialist in the network

Some specialists — particularly rare-disease specialists or subspecialists — may not be in your plan's network in your area. Before you rule out a plan, call the plan and ask whether they cover out-of-network specialist care, and at what cost. Some plans will cover out-of-network specialists if there's no in-network option nearby.

You can also ask your current specialist whether they work with Medicare Advantage plans at all, and if so, which ones. They may be in a plan you hadn't considered. If your specialist doesn't accept any Medicare Advantage plans, you may need to choose Original Medicare instead, or find a new specialist who does accept Medicare Advantage.

This decision is worth making before you enroll. Switching plans mid-year because you can't see your specialist is possible but takes time and effort.

Frequently Asked Questions

Can I see any doctor I want with Medicare Advantage?

No. You can see doctors in your plan's network at the lower copay. You can see out-of-network doctors, but you'll pay more or the full cost. Emergencies and urgent care are covered out-of-network at the in-network rate.

Do I need a referral to see a specialist?

It depends on your plan type. HMOs require a referral from your primary care doctor. PPOs do not. Check your plan's rules or call the plan to confirm.

What if my doctor is in the network but not accepting new patients?

You can still see that doctor if you're already their patient. If you're not, ask the plan for other doctors in the same specialty nearby. You can also ask your doctor's office when they might open to new patients.

Can I switch Medicare Advantage plans if my doctor leaves the network?

Yes. You have 60 days from the date your doctor left the network to switch to a different plan. Contact your current plan to confirm the exact date the change takes effect, then compare other plans in your area.

How do I know if a plan's network is good for me?

Search the plan's provider directory for your primary care doctor, any specialists you see regularly, and your preferred hospital. If most of your doctors are in the network, the plan is likely a good fit. If key providers are missing, compare other plans.