Medicare for federal employees and retirees.
If you have FEHB (Federal Employees Health Benefits) or PSHB (Postal Service Health Benefits), Medicare changes the math. Should you take Part B? Suspend FEHB? Switch to Medicare Advantage? Below: the decision framework.
Federal employees still working at 65
If you're an active federal employee at 65, you can keep FEHB and delay Medicare without penalty. FEHB is considered creditable coverage — you can postpone Part B and Part D until you retire (or stop FEHB) and enroll later via Special Enrollment Period.
However, many active federal employees still enroll in premium-free Part A at 65 (assuming you have 40 quarters of work credits). Part A acts as secondary coverage to FEHB for hospital stays — useful belt-and-suspenders. The exception: if you contribute to an HSA, enrolling in any part of Medicare disqualifies you from future HSA contributions.
Federal retirees with FEHB
When you retire from federal service, FEHB continues — but Medicare becomes primary at 65. Most federal retirees end up in one of three configurations:
- FEHB + Medicare A only. Skip Part B to save the $185/mo premium. FEHB covers everything Medicare doesn't. Risk: missing the 8-month Part B SEP after FEHB coverage ends, triggering lifetime Part B late penalty if you ever lose FEHB.
- FEHB + Medicare A and B (most common). Pay both FEHB premium and Part B premium ($185/mo). Most FEHB plans waive deductibles, copays, and coinsurance for Medicare-covered services when you have both — meaning lower out-of-pocket costs. Many federal retirees consider this the gold standard.
- Suspend FEHB + Medicare Advantage. Some federal retirees suspend (not cancel) FEHB and enroll in a Medicare Advantage plan with strong supplemental benefits (dental, vision, hearing, OTC). You can re-enroll in FEHB during the next Open Season if MA doesn't work out. Also gives you the option to use FEHB for prescription drugs that the MA plan doesn't cover well.
Postal Service retirees: PSHB is different
Starting January 1, 2025, USPS retirees and family members were moved from FEHB to PSHB (Postal Service Health Benefits). Key differences:
- Medicare Part B enrollment is generally required. Most Medicare-eligible PSHB enrollees and family members must enroll in Part B (with limited exceptions for those who retired before specific dates).
- Special Medicare Advantage options. Several PSHB plans now include Medicare Advantage options that reimburse all or part of your Part B premium back to you.
- Same Open Season. PSHB Open Season aligns with FEHB Open Season — typically mid-November through mid-December each year.
If you're a USPS retiree or current employee approaching 65, the PSHB + Medicare decision is more complex than the typical FEHB + Medicare decision. Talk to a Medicare advisor familiar with PSHB before making your choice.
Do FEHB plans coordinate well with Medicare?
Most FEHB plans have "Medicare integration" features that make the combination cost-effective when you have both:
- Waived deductibles and copays. Many FEHB plans waive their deductibles, copays, and coinsurance for Medicare-covered services. You pay only what Medicare doesn't cover.
- Reduced premiums. Some FEHB plans offer reduced premiums or rebates for Medicare-eligible enrollees.
- Catastrophic protection. Combined FEHB + Medicare effectively eliminates out-of-pocket maximums for in-network care.
- Prescription drug coverage. FEHB pharmacy benefits are creditable for Part D — you don't need a separate Part D plan unless your specific FEHB plan recommends it.
The right FEHB plan choice depends on whether you have Medicare A only, A+B, or are considering MA. Compare your FEHB options during Open Season every year — plans change.
Common federal retiree mistakes
- Cancelling FEHB instead of suspending it. If you cancel FEHB, you cannot re-enroll. If you suspend (to enroll in MA, TRICARE, or Medicaid), you can re-enroll during the next Open Season.
- Skipping Part B and assuming FEHB will always be enough. If you ever lose FEHB (employer changes, divorce, death of federal-employee spouse), you'll have only an 8-month Part B SEP — and a 10% per year lifetime penalty if you miss it.
- Not reviewing FEHB options annually. FEHB has 100+ plans. The best plan in 2025 may not be best in 2026. Open Season is the only time you can switch.
- Forgetting about the GEHA / Blue Cross Blue Shield Federal Employee Program (FEP). The two largest FEHB carriers offer plans with strong Medicare coordination — often better than smaller plans.
Free FEHB-vs-Medicare consultation.
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