Why another Part D plan cancels STRS Ohio coverage
Medicare lets you be in only one Part D plan at a time, and STRS Ohio's prescription coverage for Medicare enrollees is itself a Medicare Part D plan run for STRS Ohio as a group plan. When Medicare records your enrollment in a different Part D plan (or in a Medicare Advantage plan with drug coverage), you're disenrolled from the STRS Ohio plan. STRS Ohio's Medicare Enrollment page puts it plainly: "Enrollment in any other Part D plan will cancel your STRS Ohio medical and prescription coverage."
That applies to both STRS Ohio choices for people with Medicare: its group Medicare Advantage plan (where you're placed after you send proof of Medicare) and its Medicare-coordinating secondary plan. Both include Part D.
Watch out during Open Enrollment
From October 15 to December 7, Ohio retirees get a lot of plan mail and calls. If you have STRS Ohio coverage, an enrollment form for another plan can end it. Before you sign anything:
- Check which plan you're in. Your STRS Ohio Online Personal Account shows your coverage.
- Don't enroll by phone with a plan you don't recognize. Medicare Advantage and Part D enrollments take effect through Medicare, not STRS Ohio.
- Use STRS Ohio's own window to change STRS Ohio plans. For 2027, it's November 1–24, 2026.
- If you enrolled by mistake, act fast. Call 1-800-MEDICARE (1-800-633-4227) and STRS Ohio right away.
If you decide to leave STRS Ohio coverage
Some retirees compare STRS Ohio's plans with individual Medicare plans. That's your choice, but leaving is a big step: retiree health care isn't guaranteed by Ohio law, and getting back in is limited to STRS Ohio's enrollment windows and qualifying events. Compare the full cost of STRS Ohio's premium, subsidy and Part B credit with what you'd pay on your own, and confirm with STRS Ohio first. To look at individual plans in your county, you can request a call from a licensed insurance agent or check plans that cover your drugs.
More in our guide to STRS Ohio and Medicare and Medicare Part D in Ohio.
Related questions
Do STRS Ohio retirees need Part B?
Yes, and Part A if premium-free.
Do Ohio teachers have to pay for Part A?
Who qualifies premium-free.
Does SERS reimburse Part B?
SERS's Part D rule too.
Sources
- STRS Ohio — Medicare Enrollment
- STRS Ohio — 2027 health care changes FAQ
- STRS Ohio — Open Enrollment Resource Center
- Medicare.gov — Avoid late enrollment penalties
More questions in this guide
- Do federal retirees in Ohio need Medicare Part B with FEHB?
- Do Ohio teachers have to pay for Medicare Part A?
- Do OPERS retirees have to enroll in Medicare?
- Do postal retirees in Ohio need Medicare Part B for PSHB?
- Do STRS Ohio retirees need Medicare Part B?
- Does OPERS pay for Medicare Part B?
- Does SERS reimburse Medicare Part B?
- Does the Social Security Fairness Act change Medicare for Ohio public retirees?
- How does HPRS retiree health care work with Medicare?
- How does the OPERS Medicare Connector work?
- What happens to OP&F retiree health care when I turn 65?
Part of the guide: Ohio's public retirement systems and Medicare · All questions
Frequently asked questions
Does the Medicare Part D out-of-pocket cap apply to STRS Ohio's drug coverage?
Yes. STRS Ohio's drug coverage for Medicare enrollees is Medicare Part D coverage, and STRS Ohio says its 2027 out-of-pocket maximum aligns with the 2027 Medicare Part D limit of $2,400.
Do I need a separate Part D plan to avoid a late penalty?
No. STRS Ohio's Medicare plans include Part D, so you have Part D coverage while you're enrolled. If you ever leave STRS Ohio coverage, join a new Part D plan or other creditable coverage within 63 days to avoid a penalty.
What if I drop STRS Ohio coverage and want it back later?
STRS Ohio limits when you can enroll: during its open enrollment or after a qualifying event, such as first becoming eligible for Medicare. Ask STRS Ohio before you cancel, because subsidies and eligibility depend on its current rules.
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