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Enrollment Periods for 2026Medicare 65+ 10/15-12/7 - Connect for Health

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Medicare in Colorado: plans, enrollment, and costs

Everything a Colorado beneficiary needs, from choosing between Medicare Advantage and Medigap to enrollment windows, Part D, IRMAA, and late-enrollment penalties.

The short answer

Most Colorado beneficiaries choose one of two paths: Original Medicare plus a Medigap supplement and a Part D drug plan, or an all-in-one Medicare Advantage plan. Advantage plans usually cost less each month but use networks; Medigap costs more each month but offers nationwide provider access and predictable bills. Your enrollment window, prescriptions, and doctors decide which fits.

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Common questions

When can I change my Medicare plan in Colorado?
The Annual Enrollment Period runs October 15 through December 7 each year, with changes effective January 1. Special Enrollment Periods apply after qualifying life events such as moving or losing employer coverage.
Is Medicare Advantage better than Medigap?
Neither is universally better. Medicare Advantage bundles coverage with lower premiums and network rules; Medigap pairs with Original Medicare for nationwide provider access and predictable out-of-pocket costs.
Does a Medicare broker cost anything?
No. Licensed brokers such as Kelmeg & Associates are paid by the carriers, so plan comparisons and enrollment help cost you nothing.

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