The Short Answer: It Depends on What Type of Coverage You Have
When you move to a new state, your Medicare coverage does not all behave the same way. The type of plan you have determines whether your coverage continues seamlessly, requires an update, or must be replaced entirely. Understanding this before you move allows you to plan ahead and avoid coverage gaps or unexpected out-of-pocket costs.
Original Medicare: Fully Portable
If you have Original Medicare Parts A and B, your coverage is nationwide and fully portable. Medicare is a federal program. There is no enrollment action required when you move to a new state. Your Medicare card remains valid, your Medicare number stays the same, and you can immediately use your coverage with any Medicare-participating provider in your new state. No notifications to Medicare are required for a move, though you should update your address with the Social Security Administration to ensure you receive important correspondence.
Medigap (Medicare Supplement) Plans: Also Portable
Medicare Supplement plans (Medigap) are also portable when you move to a new state. Your plan pays secondary to Original Medicare wherever Medicare is accepted, and since Original Medicare works nationwide, your Medigap coverage works nationwide as well. A Plan G from one state works in another state without any changes to your enrollment.
However, there is one nuance worth noting. The insurer for your Medigap plan may or may not be licensed in your new state, and in some cases you may have the option or desire to shop for a new Medigap plan in your new state, especially if better rates are available or if you want to take advantage of any state-specific guaranteed issue protections. If you move to New York or Connecticut, for example, those states have year-round guaranteed issue for Medigap regardless of health status, so you could potentially switch to a different Medigap plan without medical underwriting. In most other states, however, switching Medigap plans requires medical underwriting outside of guaranteed issue situations.
Medicare Advantage: Not Portable, Action Required
Medicare Advantage plans are geographically specific. Each plan has a defined service area (typically a county or group of counties). If you permanently move outside your plan's service area, your plan ends and you need to enroll in a new plan. This triggers a Special Enrollment Period (SEP) that allows you to enroll in a new Medicare Advantage plan or return to Original Medicare in your new location.
This is one of the most common enrollment situations that requires immediate action. If you move and fail to enroll in a new plan, you will be disenrolled from your Medicare Advantage plan (once the insurer or CMS becomes aware of the change), and you may face a gap in your supplemental coverage. Part A and B continue regardless, but your MA plan's additional benefits (dental, vision, drug coverage) will not.
The SEP for moving is available when you permanently move to a new address outside your plan's service area. You typically have two months after the month you notify your plan of the move to enroll in a new plan. Act promptly and do not wait for coverage to automatically end before making a new selection.
Part D Drug Plans: Review and Potentially Replace
Part D prescription drug plans, like Medicare Advantage plans, are tied to a geographic service area. When you move to a new state (or even to a new county), your current Part D plan may no longer be available or may offer different formulary options than plans available in your new ZIP code. Moving triggers an SEP to enroll in a new Part D plan. You should compare Part D plans available in your new ZIP code as soon as you have a permanent new address to ensure your medications are covered at the best cost-sharing tier.
Step-by-Step: What to Do When You Move
- Step 1: Update your address with the Social Security Administration (ssa.gov or 1-800-772-1213) to keep your Medicare correspondence current.
- Step 2: If you have Original Medicare and Medigap, no coverage action is needed. Confirm your Medigap insurer has your new address.
- Step 3: If you have a Medicare Advantage plan, contact your plan to notify them of your move. This triggers the disenrollment process and your SEP. Simultaneously, compare Medicare Advantage plans in your new area and enroll.
- Step 4: If you have a standalone Part D plan, compare Part D options for your new ZIP code and enroll in the plan that best covers your medications.
- Step 5: If you had a Medicare Advantage plan and are returning to Original Medicare in a new state, consider applying for a Medigap plan. Be aware that medical underwriting may apply unless you have a guaranteed issue right from the MA disenrollment event.
Planning a move is the right time to do a full Medicare review. Call Insurance Innovators LLC at (530) 395-5309 to make sure your coverage continues without gaps and that you are enrolled in the best available options for your new location.