Enrollment
Creditable Coverage
Quick answer
Creditable coverage is drug coverage — usually from an employer, union, VA, or TRICARE — that Medicare considers at least as good as Part D. Having it lets you delay Part D without a penalty.
Plain-English definition
Your plan sponsor sends an annual notice telling you whether your coverage is creditable.
Why it matters
Losing creditable coverage triggers a SEP to enroll in Part D without penalty.
A simple example
You keep your employer prescription plan past 65. Because it's creditable, you don't need Part D yet.
Common mistakes & misconceptions
Related terms
Late Enrollment Penalty
The Late Enrollment Penalty (LEP) is a permanent surcharge added to your Part B or Part D premium if you don't enroll when first eligible and don't have other creditable coverage.
Employer Coverage
Employer coverage is a group health plan from your (or your spouse's) current job. If the employer has 20+ employees, you can usually delay Part B without penalty while you're still working.
COBRA
COBRA lets you temporarily continue employer coverage after leaving a job. COBRA is not considered active employer coverage for Medicare, so it does not delay your Part B enrollment window.
Frequently asked questions
How do I prove creditable coverage?+
Keep the annual creditable-coverage notice from your plan.
Sources & references
📚 Where this information comes from
- Medicare.gov — official U.S. government site for people with Medicare ↗Primary source for benefits, enrollment periods, and plan comparison.
- CMS.gov — Centers for Medicare & Medicaid Services ↗Federal rulemaking, program updates, and official guidance.
- Social Security Administration — Medicare enrollment & premiums ↗Enrollment, premium withholding, and IRMAA determinations.
When you're ready, compare plans on your own terms
See Medicare Advantage plans from the insurance companies we represent, or walk the course with a licensed agent whenever you'd like a second set of eyes.
We help compare Medicare Advantage plans from the insurance companies we represent, and we don't offer every plan available in your area.
Medicare Caddies is an independent insurance agency. We are not affiliated with, endorsed by, or connected to the U.S. government, the federal Medicare program, or the Centers for Medicare & Medicaid Services (CMS). We help compare Medicare Advantage plans from the insurance companies we represent, and we don't offer every plan available in your area.