Your 2027 Guide to Medigap in Ohio

A Medigap policy fills the deductibles and coinsurance Original Medicare leaves behind — and because the plans are standardized by law, the letter matters more than the company. This guide explains how they work, and what each covers, for people in Ohio, in plain terms for 2027.

If Ohio Medicare feels like a moving target, here's why: availability is decided at the county level, not the state level. This guide meets that reality by going city by city.

Statewide, about 57% of Ohio Medicare members are in a Medicare Advantage plan rather than Original Medicare — an official figure that varies widely county to county.

Below you'll get the organizations serving Ohio, a jargon-free look at how Medicare works, 2027 costs, the enrollment calendar, free places to get help, and links into each city.

Where Medigap fits in your Medicare

Original Medicare (Part A and Part B) pays most of your covered costs — but not all. You're left with deductibles, coinsurance, and copays, and there's no annual out-of-pocket maximum in Original Medicare on its own. That open-ended exposure is the gap Medigap policies are designed to help close.

Medigap policies are sold by private insurers but standardized by the federal government and labeled with letters (such as Plan G or Plan N). Because they're standardized, a given lettered plan covers the same things no matter who sells it — what differs is price and service. Medigap pairs with Original Medicare, not Medicare Advantage, and doesn't include drugs, so people on this path usually add a stand-alone Part D plan.

This guide explains how the standardized plans and your enrollment rights work in Ohio. We explain the framework — we don't rank plans or quote specific premiums.

The 2027 numbers, from shared to plan-specific

Start with what's fixed for everyone. The standard Part B premium is $202.90 per month in 2026 (2026 amount; 2027 figure will be posted when CMS releases it), and Part A is premium-free for most people who paid Medicare taxes long enough while working.

On the drug side, Part D has real guardrails for 2027: a deductible capped at $700 and, a hard $2,400 ceiling on your out-of-pocket costs for covered prescriptions — the old coverage gap is gone.

Higher earners pay more for Parts B and D through an income-related adjustment called IRMAA, which for 2026 starts above $109,000 in annual income for an individual and is based on your 2024 tax return. Most people fall below that line and pay the standard amounts. The 2027 brackets will be posted when CMS releases them.

Everything past that is plan-specific: the premiums, copays, and coverage details of an individual Advantage or Medigap plan change from plan to plan and year to year. Rather than quote or rank those, we point you to Medicare's Plan Finder and a licensed agent for your exact numbers.

When you can enroll or make changes

Medicare's enrollment windows are federal — the same nationwide — so the timing below applies wherever you live.

Your first window (IEP). When you're new to Medicare, your Initial Enrollment Period is the 7-month window around your 65th birthday month. Signing up on time helps you avoid late penalties that can follow you for years.

Annual Enrollment Period (AEP, also called Open Enrollment). Each fall, from October 15 – December 7, anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Medicare Advantage Open Enrollment. From January 1 – March 31, if you're already in an Advantage plan you get one chance to switch plans or return to Original Medicare.

Special Enrollment Periods can also open after certain life events, like moving or losing other coverage. The interactive calendar further down lays the year out visually.

Where to get free, unbiased help near Ohio

Good Medicare help exists and it's free — you don't have to figure this out solo or pay for guidance.

For official specifics and the Plan Finder tool, go straight to Medicare.gov or 1-800-MEDICARE (TTY 1-877-486-2048). And a licensed agent can compare options and handle the paperwork with you.

One note on who we are: MyMedicarePlans.org is an independent, privately owned educational resource — not Medicare, not a government agency, and not affiliated with one. Our job is to help you get oriented, then hand you off to the official sources and licensed professionals for plan decisions.

Ohio cities

Pick your city for the county-level picture, the companies active in your area, and local guides: