If you spend winters in Florida and summers in Michigan, or split time between any two states, Medicare gets more complicated. Some plans cover you everywhere. Others lock you into one location. Here is how to pick the right Medicare setup if you live in more than one place.
The basic rules for snowbirds
Your Medicare coverage depends on which type of plan you have:
Original Medicare
Works in all 50 states. Any doctor or hospital that takes Medicare accepts you. No network restrictions, no out-of-state surprises. Original Medicare is the best option for snowbirds who travel frequently.
Medicare Advantage (HMO)
Has a tight regional network. Out-of-network care is usually not covered except for emergencies. HMOs are usually the worst choice for snowbirds.
Medicare Advantage (PPO)
Has an in-network area but covers out-of-network care at higher cost. PPO is better for snowbirds than HMO, but still has limits compared to Original Medicare.
Medigap (Medicare Supplement)
Works nationwide. Any doctor that takes Medicare also takes your Medigap plan. Plus, most Medigap plans include foreign travel emergency coverage. Medigap is the best supplement for snowbirds.
Part D drug plans
Local plans, but most have nationwide pharmacy networks. You can fill prescriptions at most major chains anywhere. Some plans have preferred pharmacy networks; you save more at preferred pharmacies.
The "permanent residence" rule
You can only have ONE permanent address for Medicare purposes. Medicare uses that address to determine:
- Which Medicare Advantage and Part D plans you can join
- Where your plan documents and ID cards get mailed
- Which state has authority over your insurance
Most snowbirds pick the state where they spend more than 6 months of the year. Or the state where they have other ties like a driver's license, voter registration, and homestead exemption.
The best Medicare setup for snowbirds
Option 1: Original Medicare + Medigap + Part D
This is the gold standard for snowbirds. Why:
- Original Medicare works at any Medicare doctor in any state
- Medigap follows you anywhere (same coverage in FL as in MN)
- Part D plans have nationwide pharmacy networks
- Foreign travel emergency benefit on most Medigap plans
- No referrals, no prior authorization for most services
The trade-off: higher monthly cost than Medicare Advantage. But for snowbirds, the flexibility is usually worth it.
Option 2: Medicare Advantage PPO with national network
Some Medicare Advantage PPOs have multi-state networks. UnitedHealthcare AARP, Humana, and Aetna offer plans with networks that span several states. If your two states are both in the network, this might work.
What to verify:
- Both your home and snowbird locations are in the network
- Your doctors in both places are in network
- Your prescriptions are on the formulary and available at pharmacies in both places
- The out-of-network maximum out-of-pocket is reasonable
Option 3: Medicare Advantage HMO (usually not recommended)
If you spend most of your time in one state and only travel for a couple weeks elsewhere, an HMO might still work. But you'll only have emergency coverage outside the home network, which is risky if you need ongoing care.
Part D for snowbirds
Part D plans are the most flexible Medicare plan type for snowbirds. Most Part D plans have nationwide pharmacy networks that include:
- CVS
- Walgreens
- Walmart
- Costco
- Most independent pharmacies
You can fill prescriptions in any state. You save more at preferred pharmacies. Many plans also offer mail-order pharmacy for 90-day supplies, which works well for snowbirds.
Choosing which state is your "home"
For Medicare purposes, you pick one state as your permanent address. Most snowbirds choose based on:
Tax considerations
Florida, Texas, Tennessee, Nevada, and a few other states have no state income tax. Many snowbirds make these their permanent residence to lower their tax bill.
Medicare plan availability
Some states have more Medicare Advantage and Medigap options than others. Florida has hundreds of MA plans. Maine has dozens. Picking the state with more options gives you more flexibility.
Medigap rules
Medigap rules vary by state. Some states like New York and Connecticut have year-round guaranteed issue for Medigap. Some states have birthday rules. See our birthday rule guide.
Where your doctors are
If most of your specialists are in one state, that's a reason to make that your home state.
Address change with Medicare
When you change your permanent address, you must update Medicare. The process:
- Update your address with Social Security at ssa.gov. Medicare gets the update automatically.
- If on Medicare Advantage or Part D, your plan needs to know. The address change may trigger a Special Enrollment Period to switch plans if your new area has different plans available.
- Update your Medigap carrier directly.
Special Enrollment Period for moving
If you permanently move to a new state (or to a new ZIP code with different plans), you get a Special Enrollment Period to change Medicare Advantage or Part D plans. The SEP lasts 2 months and starts:
- The month before you move (if you tell your plan in advance), or
- The month after you move (if you tell them after)
This is important. If you make a state your permanent home and your current plan doesn't cover the new area well, you can switch without waiting for Annual Enrollment.
The temporary visit problem
If you stay in another state for less than 6 months and don't make it your permanent address, you are just visiting for Medicare purposes. Your plan's normal rules apply:
- Original Medicare: full coverage anywhere
- Medigap: full coverage anywhere
- Medicare Advantage HMO: emergencies only
- Medicare Advantage PPO: out-of-network coverage at higher cost
The doctor problem
If you split time between two states, you probably want a doctor in each place. With Original Medicare, this is easy. Any doctor that takes Medicare can see you.
With Medicare Advantage, your network may not include both your home doctor and your snowbird doctor. You may have to:
- Use your home doctor only and travel back for appointments
- See a doctor in your snowbird state as out-of-network (high cost)
- Switch your permanent address to wherever you have your main doctor
Prescription strategy for snowbirds
- Use mail-order pharmacy for chronic medications. Most plans offer 90-day supplies delivered to wherever you are.
- Check pharmacy networks in both states before picking a plan. Make sure CVS, Walgreens, or your preferred pharmacy is in network in both places.
- Keep emergency prescriptions handy. Always have at least a 30-day buffer of essential meds when you travel.
Common snowbird mistakes
Mistake 1: Picking an HMO Medicare Advantage plan
If you spend significant time in two states, an HMO is usually the wrong choice. You won't have coverage in your snowbird location except for emergencies.
Mistake 2: Not telling your Medicare Advantage plan you're traveling
Some plans require you to notify them if you'll be out of the area for extended periods. Failing to do this can cause coverage issues. Check your plan's rules.
Mistake 3: Maintaining two permanent addresses
You can only have ONE Medicare address. Trying to maintain plans in two states usually fails.
Mistake 4: Not using the moving SEP
If you officially change your address to your snowbird state and your current plan doesn't fit well, you can switch immediately using the moving SEP. Don't wait for Annual Enrollment.
The bottom line
For snowbirds, the simplest setup is Original Medicare with a Medigap plan and a Part D drug plan. You get nationwide coverage, no network restrictions, and no prior authorization headaches.
If you want to use Medicare Advantage, choose a PPO with a multi-state network, and verify both your home and snowbird locations are in network. Avoid HMOs unless you spend almost all of your time in one location.
