When can I enroll in a Medigap plan?

Quick Answer

The best time to enroll in a Medigap plan is during your Medigap Open Enrollment Period, which starts the month you turn 65 and are enrolled in Medicare Part B. During this 6-month window, insurers cannot deny you coverage or charge you more based on your health.

Detailed Explanation

Medigap is supplemental insurance that helps cover costs Original Medicare doesn't pay, like copays and deductibles. The most important window is your Medigap Open Enrollment Period. It opens the first month you are both 65 and enrolled in Part B, and it lasts six months. During that window, any insurance company that sells Medigap in your state must sell you a policy, and they cannot turn you away or charge you more because of a health condition. That protection is called guaranteed issue rights.After that window closes, things get harder. Most insurers can ask about your health history and charge you more, or even decline to sell you a policy at all, depending on what state you live in. Utah does not have strong state-level protections beyond what federal law requires, so waiting can cost you.There are some situations where you get a special guaranteed issue right later, like if you lose employer coverage or move out of a plan's service area. But those windows are narrow, usually 63 days. If you are younger than 65 and on Medicare due to a disability, federal law does not require insurers to sell you a Medigap policy, though some may choose to. Always verify current rules and plan details directly with an insurer or a licensed agent.

How This Applies in Utah

In Utah, carriers like SelectHealth, Regence BlueCross, and others sell Medigap plans, but availability and pricing vary. A free consultation with a Utah ADRC (the state's SHIP program) can help you compare options without any sales pressure.

What This Means For You

For you, this means the month you turn 65 and start Part B is the single most important window to shop for a Medigap plan, and waiting can make it harder or more expensive to get covered later.

Disclaimer

How Resting Sycamore Advisors Uses CMS Data

Our Commitment to Reliable Medicare Information

At Resting Sycamore Advisors, we work to provide accurate, current, and trustworthy information about Medicare Advantage, Medicare Part D, and Special Needs Plans.

To do that, we use data published by the Centers for Medicare & Medicaid Services (CMS), which is the official source for Medicare plan and enrollment information.

CMS Data Sources We Rely On

Our Medicare plan pages and comparison tools are powered by CMS datasets, including:

  • Medicare Advantage and Part D Landscape Files for annual plan availability and benefit details
  • Plan Benefits Package (PBP) Files for detailed benefit and coverage information
  • Part C and Part D Performance Data for quality ratings and plan performance measures
  • Monthly Enrollment Data for enrollment counts by contract, plan, state, and county

When possible, we link to the original CMS resources so you can review the source material directly.

How Often We Update Our Data

We follow the CMS release schedule and update our website as new data becomes available.

Annual Plan Year Updates (September)

We load new plan year Landscape and PBP files before the Medicare Annual Enrollment Period (October 15 through December 7). We also monitor CMS.gov for updates or revisions and refresh our content when needed.

Mid-Year Updates

We update enrollment and performance data as CMS publishes revised files, which are typically released monthly or quarterly.

Ongoing Maintenance

We routinely monitor CMS announcements for corrections, reissued files, or other changes and update our pages accordingly.

Each plan page includes a Last Accessed date so visitors can see when the source information was most recently reviewed.

How We Prepare CMS Data for Our Website

CMS data can be difficult to read in raw form. To make it easier to use, we format and organize the data for clarity.

This includes:

  • Standardizing plan identifiers such as contract ID, plan ID, and segment
  • Normalizing terminology so common Medicare terms are presented consistently
  • Organizing plan information by state, county, and ZIP code to match how people shop for coverage

All data values come from CMS. We do not change the underlying values beyond formatting, organization, and presentation.

Version Tracking and Transparency

We keep internal records of the CMS dataset versions used on our site.

Major Version History

  • Current Version: CY2025 Medicare Advantage and Part D Landscape Files (v1.0, published October 2025)
  • Prior Version: None. Resting Sycamore Advisors first began publishing structured Medicare plan information in March 2025

If CMS issues corrected or revised files, we update our website to reflect the latest available version.

Important Limitations

Please keep the following in mind:

  • CMS is the official source of truth. For enrollment and coverage decisions, always confirm details with Medicare.gov or 1-800-MEDICARE.
  • Data timing can vary. Enrollment and performance updates may appear on our website a few weeks after CMS publishes changes.
  • Plan details can change. Plan availability, costs, and benefits may change. Always verify current details directly with the plan provider.

Need Help From Official Medicare Resources?

For personalized Medicare assistance, please use these official resources:

  • Medicare.gov Help Center — https://www.medicare.gov
  • 1-800-MEDICARE (1-800-633-4227) TTY: 1-877-486-2048
  • State Health Insurance Assistance Program (SHIP) — free local counseling for Medicare beneficiariesIf you want, I can also give you a shorter legal-style version for a footer or /disclaimer page summary.