Turning 65 in Hawaii — your Medicare checklist

Turning 65 is the moment most Americans become eligible for Medicare. Hawaii has specific factors — high cost of living, inter-island healthcare access, and a strong existing employer-based insurance market — that can make the decision more complex.

Your Medicare timeline

Your Initial Enrollment Period (IEP) is a 7-month window centered on your 65th birthday month:

Starts 3 months before your 65th birthday month
Includes your birthday month
Ends 3 months after your birthday month

The 6-month checklist

3 months before 65 (start of IEP)

Decide whether to enroll in Part B now or delay because of credible employer coverage
If you decide to enroll, sign up for Parts A and B online at ssa.gov or call Social Security at 1-800-772-1213
If you're already collecting Social Security, you'll be enrolled automatically
Begin researching Medigap and Medicare Advantage options
Call Sage PLUS Hawaii at 1-888-875-9229 for free counseling

2 months before 65

Compare Medigap policies if you're going the Original Medicare route — your 6-month Medigap Open Enrollment starts the month you're 65 AND enrolled in Part B
Compare Medicare Advantage plans on Medicare.gov Plan Finder
List your medications, doctors, and preferred hospitals
If you have employer coverage, get written confirmation of "creditable coverage" status to avoid Part D late penalties

1 month before 65

Lock in your Medigap or Medicare Advantage choice
Confirm your Part D plan if you went the Original Medicare route
Set up Social Security online account at ssa.gov
Order your Medicare card if you haven't received it

Birthday month and after

Coverage starts the first of your birthday month (if you signed up early)
If your birthday is on the 1st, coverage starts the previous month's 1st
You have through the end of the month after your birthday month + 2 more months to make changes during IEP

Hawaii-specific considerations

If you live on a neighbor island — pay particular attention to inter-island travel coverage in Medicare Advantage plans
If you're a federal retiree — review FEHB+Medicare coordination carefully (see our FEHB guide)
If you're a military retiree — Part B is mandatory to keep TRICARE For Life
If you're a Hawaii state retiree (EUTF) — coordination rules vary by your specific plan
If you have employer coverage — talk to HR about whether to enroll in Part B or delay

Common mistakes to avoid

Missing Part B because you have employer coverage — only certain employer coverage qualifies you to delay; ask before assuming
Buying Medigap outside the 6-month Open Enrollment — outside this window, insurers can refuse you or charge more based on health
Picking an MA plan based on premium alone — networks, formularies, and inter-island coverage matter more
Not enrolling in Part D when you don't have creditable drug coverage — late penalty is permanent

Frequently asked questions

Do I have to enroll in Medicare at 65 if I'm still working?

If you have credible group health coverage from a current employer (yours or your spouse's), you can typically delay Part B without penalty. If your employer has fewer than 20 employees or you have COBRA, you generally need to enroll. Confirm your specific situation with HR.

When does Medicare coverage start?

If you enroll during the first 3 months of your IEP, coverage starts the first day of your birthday month. If your birthday is on the 1st, coverage starts the prior month's 1st.

How do I sign up for Medicare in Hawaii?

Online at ssa.gov, by phone at 1-800-772-1213, or in person at a Social Security office. If you're already receiving Social Security, you're enrolled automatically at 65.

What if I'm 64 and want to plan ahead?

Start researching at 64. Read Sage PLUS materials. Decide between Original Medicare + Medigap and Medicare Advantage as your general direction. Don't enroll early — you can't enroll before age 65 (unless you qualify by disability).