Ohio Medicare · Advantage & Medigap · NPN #22255420
Ohio Medicare Advantage & Supplement Plans
212 Medicare Advantage plans, 9 Medigap carriers, 25 Part D options — and 57% of Ohio's 2.5 million beneficiaries already in an Advantage plan, many chosen years ago and never revisited. Philip compares what is actually available in your county and tells you plainly whether switching is worth it.
Reviewed by Philip Smith, Licensed Insurance AgentNPN #22255420FL Lic. #G349232Updated July 2026
Key Ohio Medicare Dates
- Initial Enrollment: 7 months around your 65th birthday
- Annual Enrollment: October 15 – December 7, effective January 1
- MA Open Enrollment: January 1 – March 31 to switch or drop MA
- Medigap guaranteed issue: the 6 months after Part B starts — then underwriting
Ohio Medicare, 2026
2,561,241Ohioans enrolled in Medicare
57%in a Medicare Advantage plan — above the 55% national rate
212Medicare Advantage plans statewide
9 / 25Medigap carriers / Part D plans
2026 plan year. Source: CMS landscape data; KFF.
Ohio is one of four states with no Medigap access under 65
If you qualified for Medicare through disability rather than age, Ohio does not require carriers to offer you any Medicare Supplement plan. Most states require at least one. That leaves under-65 Ohio beneficiaries choosing between Original Medicare with no supplement and a Medicare Advantage plan — which makes the plan's network and its annual out-of-pocket maximum far more important than the premium. If this is your situation, it is worth a conversation before you pick.
Ohio Medicare FAQs
How many Medicare Advantage plans are available in Ohio?
212 Medicare Advantage plans are available across Ohio for 2026, down slightly from 217 in 2025. Every Ohio county has at least one Medicare Advantage plan available, and every Ohio resident has access to at least one $0-premium option. The count that matters, though, is the one in your county — availability and provider networks vary enormously between, say, Franklin County and a rural Appalachian county. Ohio also has 9 Medigap carriers and 25 Part D plans for 2026.
How popular is Medicare Advantage in Ohio?
Very. About 57% of Ohio's 2,561,241 Medicare beneficiaries were enrolled in a Medicare Advantage plan as of January 2026, above the national average of 55%. Penetration is highest in the Columbus and Cleveland metros. High penetration means strong competition and rich extra benefits, but it also means a lot of Ohioans are in MA plans that were chosen years ago and have quietly changed benefits, networks, or drug coverage since.
Can I get a Medigap plan in Ohio if I am under 65?
Generally no, and this is the Ohio rule that surprises people most. Ohio is one of only four states with no guaranteed access to any Medigap plan for beneficiaries under 65 — people who qualified for Medicare through disability rather than age. Most states require carriers to offer at least one plan to under-65 beneficiaries; Ohio does not. In practice that means a disabled Ohioan on Medicare is usually choosing between Original Medicare with no supplement and a Medicare Advantage plan, which makes the MA network and out-of-pocket maximum far more consequential. Worth understanding before you are in it.
Should I choose Medicare Advantage or a Medicare Supplement in Ohio?
It is a trade between predictability and flexibility, not a question of which is better. Medicare Advantage bundles hospital, medical and usually drug coverage into one plan with low or $0 premiums and extras like dental and vision, but you use a network and pay copays as you go up to an annual maximum. A Medigap plan — Plan G is the most common choice for new Ohio enrollees — costs more monthly but covers most of what Original Medicare leaves behind and works with any provider nationwide that takes Medicare. The catch worth knowing early: your one guaranteed-issue window for Medigap is the six months after your Part B starts. After that, Ohio carriers can medically underwrite you.
When can I enroll or switch Medicare plans in Ohio?
Your Initial Enrollment Period is the seven months around your 65th birthday — three months before, your birthday month, and three months after. Annual Enrollment runs October 15 through December 7 for changes effective January 1. The Medicare Advantage Open Enrollment Period, January 1 through March 31, lets you switch from one MA plan to another or back to Original Medicare. Missing your initial window without other creditable coverage can mean a Part B late penalty that lasts for life, so the dates genuinely matter.
More for Ohio
We do not offer every plan available in your area. Any information we provide is limited to the plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE (TTY 1-877-486-2048), 24 hours a day / 7 days a week, to get information on all your options. Not affiliated with or endorsed by any government agency.
Philip Smith · Licensed Independent Insurance Broker
NPN #22255420 · Licensed in Alabama, Arizona, Florida, Georgia & Ohio · Free Medicare comparison for Ohioans. No cost, no pressure.
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