Every year, a certain number of calls come into our office in November, after AEP has already ended, from someone who just found out their doctor is no longer covered under their Medicare Advantage plan. It's an avoidable problem. Provider networks are not static, and the plan that covered your cardiologist last year is not guaranteed to cover them this year, even if nothing about your plan's premium or benefits changed on paper.
AEP opens October 15, and this is the right time, in August, to start confirming your doctors, specialists, and hospitals are still in-network before you either renew your current plan or compare new ones.
Why Provider Networks Change Every Year
Medicare Advantage plans negotiate contracts with doctors, medical groups, and hospitals on an annual basis. Those contracts can end for reasons that have nothing to do with you: a medical group renegotiates rates and doesn't reach an agreement, a hospital system switches which insurers it partners with, or a doctor moves to a different practice that isn't in the plan's network at all. None of this shows up automatically in your mailbox until your plan sends its Annual Notice of Change (ANOC) letter, and even that notice doesn't always spell out specific provider changes.
How to Check Your Doctor's Network Status Right Now
You don't need to wait for AEP to start checking. Three ways to confirm network status, from most to least reliable:
Call your doctor's office directly
Ask which specific Medicare Advantage plans they currently accept for the coming plan year, not just which insurance company. Plans within the same insurer can have different networks.
Call the number on your plan ID card
Your plan can confirm whether a specific provider is in-network today and flag any known changes coming for next year, though this information can shift as late as October.
Search the online provider directory
Convenient, but online directories can lag behind real contract changes. Treat this as a starting point, not a final answer.
What to Do If Your Doctor Is Leaving the Network
If you learn your doctor is leaving your plan's network for next year, you have two main paths: switch to a Medicare Advantage plan that still includes that doctor, or accept the change and find a new provider within your current network. If you're in active treatment for a serious condition, ask your plan about continuity of care provisions, which sometimes allow you to keep seeing your current doctor for a limited period while you transition. Our Medicare Advantage in California guide can help you compare plans that include the providers you want to keep.
Hospitals and Specialists Need the Same Check
It's easy to check your primary care doctor and stop there, but hospital networks and specialist referral patterns matter just as much. A plan can keep your primary doctor in-network while dropping the hospital system that doctor admits patients to, which affects where you'd receive care if you were ever admitted. If you see a specialist regularly, such as a cardiologist, oncologist, or endocrinologist, confirm their network status separately from your primary care doctor.
Before you call, have ready:
- A list of every doctor, specialist, and hospital you use regularly
- Your current plan name and member ID number
- Any upcoming procedures or ongoing treatments that involve a specific provider
- Your current prescription list, since pharmacy networks can change too
When Network Changes Mean It's Time to Switch Plans
If your check turns up a significant network gap, AEP, October 15 through December 7, is your main window to switch to a different Medicare Advantage plan or move to Original Medicare with a separate Part D plan. Our plan comparison guide walks through what else to weigh beyond network, including drug formularies and out-of-pocket maximums. If your network loss happens outside of AEP without proper notice, you may also qualify for a Special Enrollment Period, which our Medicare in California overview explains in more detail.
Worth knowing: if you or a family member has both Medicare and Medi-Cal, network rules can work differently under a Dual Eligible Special Needs Plan. See our dual eligibility guide for details.
If you're helping a Spanish-speaking parent or family member confirm their doctors are covered, our sister site Beneficios Medicare covers the same network-check steps in Spanish.
Not sure if your doctors are still covered?
A licensed Medicare specialist can check your specific providers against every plan available in your county, at no cost to you.
Schedule a Free Plan ReviewFrequently Asked Questions
How do I know if my doctor is in my Medicare Advantage plan's network?
Check your plan's online provider directory, call the number on your plan ID card, or call your doctor's office directly and ask which plans they currently accept. A phone call is the most reliable confirmation.
Do Medicare Advantage networks change every year?
Yes. Insurers renegotiate provider contracts annually, and doctors, medical groups, or hospitals can leave or join a network even if your plan itself stays the same.
What happens if my doctor leaves my plan's network mid-year?
Your plan must notify you in advance, and you may qualify for a Special Enrollment Period. If you're in active treatment, ask about continuity of care provisions.
Can I switch plans if my doctor is no longer in-network?
During AEP, October 15 through December 7, anyone can switch plans for any reason, including a network change. Outside of AEP, a Special Enrollment Period may still apply.
Where can I find my plan's provider directory?
Your plan's website lists it under "Find a Doctor" or "Provider Directory." You can also call 1-800-MEDICARE or ask a licensed agent to check multiple plans at once.
One More Thought
Checking your network now, months before AEP, gives you time to actually act on what you find, instead of discovering a gap in December when your options have narrowed. It's a fifteen-minute phone call that can save you a year of driving further for care or paying more out of network.