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Creditable Coverage for Medicare Part D: What It Means

Employee checks prescription coverage with benefits administrator

Creditable coverage is prescription drug coverage that is expected to pay, on average, at least as much as Medicare drug coverage. If your current plan meets that standard, you can usually wait to join a Part D plan without a penalty. If it doesn’t, or if you go too long with no drug coverage at all, you can pay more for Part D for as long as you have it. This guide explains how to tell which situation you’re in and what to do next.

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TL;DR

  • Creditable means your drug plan is expected to pay, on average, at least as much as standard Medicare drug coverage. Your plan must tell you each year whether it is.
  • Going 63 days in a row or longer without creditable coverage after your Part D initial enrollment period can trigger a late enrollment penalty.
  • The penalty is 1% of the national base beneficiary premium ($38.99 in 2026) for each full uncovered month, and it is added to your premium for as long as you have Part D.
  • Discount cards, doctor samples and free clinics don’t count as coverage.
  • Keep every notice you get, and ask your plan in writing if you’re unsure.

Table of Contents

What “creditable” actually means

Medicare Part D is the prescription drug benefit. Most people join a Part D plan when they first become eligible for Medicare. But plenty of people already have drug coverage from somewhere else at 65: a job, a retiree plan, the VA. For those people, Medicare created the idea of “creditable” coverage.

The test is simple to state. CMS defines it as coverage expected to pay, on average, at least as much as Medicare’s standard prescription drug coverage. It is a comparison of the plan’s overall value to the standard Part D benefit, not a promise that your particular drugs are covered. A plan can be creditable and still leave you paying a lot for one specific medication.

Plan value standard versus individual drug coverage

That distinction matters. Creditable coverage protects you from a penalty. It does not tell you whether the plan is the best deal for your prescriptions.

What kinds of coverage can be creditable

Coverage that can qualify includes plans from a current or former employer or union, TRICARE, the VA, or the Indian Health Service. CMS guidance and federal regulation add more to the list. According to CMS, types of creditable coverage include, but are not limited to:

  • Certain employer-based coverage
  • The Federal Employees Health Benefits Program
  • Qualified State Pharmaceutical Assistance Programs
  • Military-related coverage such as VA and TRICARE
  • Certain Medicare supplement (Medigap) policies

The federal rule at 42 CFR 423.56 also names Medicaid, PACE organization coverage, and individual health insurance that includes outpatient prescription drugs and isn’t an excepted benefit.

Notice the word “can” in every one of those lines. Having a type of plan doesn’t make it creditable. The specific plan, in the specific year, has to meet the standard, and the plan tells you whether it does.

What never counts

Medicare is blunt on this point: doctor samples, discount cards, free clinics and drug discount websites aren’t drug coverage. If you’ve been paying cash with a coupon app, you have had no creditable coverage during that time, even if the prices looked good. We wrote about why those cash prices can miss the mark in GoodRx with Medicare.

The creditable coverage notice

Every year, the organization that provides your drug coverage has to tell you where it stands. CMS describes this as a mandatory written disclosure that tells Medicare-eligible people whether the plan meets Medicare’s minimum standards. It comes from whoever provides the coverage, such as an employer or union, and generally goes out annually before October 15, so it lands before the Medicare fall enrollment season.

The notice says one of two things:

  1. Creditable: your plan’s drug coverage is expected to pay as much as standard Part D, on average.
  2. Non-creditable: it is not, and joining Part D later may cost you a penalty if you wait.

CMS also released updated guidance on July 22, 2025, clarifying policy and updating requirements for creditable coverage notices for enrollments with an effective date on or after January 1, 2026. If you get a notice that looks different from past years, that is likely why.

Keep the notice

Treat it like a tax document. Years later, when you finally join a Part D plan, you may be asked to prove you had coverage. A folder with each year’s notice makes that a five-minute task instead of a scramble.

How to find out if your coverage is creditable

You don’t have to guess or calculate anything yourself. Medicare says your current plan must tell you each year if your drug coverage is creditable, and that you should ask your plan if you’re unsure. Here is a practical order of operations:

  1. Find the notice. Check your mail and your benefits portal for the most recent one. Employers often send it with open enrollment materials.
  2. Read the one line that matters. Look for the word creditable or non-creditable next to your prescription drug plan’s name.
  3. Call if it’s missing or unclear. For job coverage, that is your HR or benefits office. For a retiree or union plan, it is the plan administrator. Ask for a written statement.
  4. Write down the date. Note when you asked and who answered.

If you take a continuous glucose monitor or an insulin pump, ask separately how your plan handles those items. Device coverage often runs through different benefits than pharmacy drugs, and a primer on diabetic device insurance approval shows what the approval process looks like.

What happens if you go 63 days without creditable coverage

This is the rule behind the whole topic. If, after your Part D initial enrollment period ends, you were eligible to enroll but weren’t in a Part D plan and had no creditable coverage for 63 days or more in a row, you may owe a late enrollment penalty when you join.

Two things are easy to miss:

  • The clock counts days in a row. A few days between plans is fine. Two months is not.
  • It starts after your initial enrollment period. The gap that counts is the one after you were first able to join Part D.

The usual way people get caught is a job change or retirement. Your employer plan ends on the last day of the month, you assume you’ll sort out Medicare later, and the days pile up.

How the late enrollment penalty is calculated

Medicare explains the math this way: the penalty is 1% of the national base beneficiary premium, which is $38.99 for 2026, multiplied by the number of full uncovered months. The result is rounded to the nearest $0.10 and added to your monthly premium for as long as you have Medicare drug coverage.

Here is a worked example using the 2026 figure. Say you went 14 full months without creditable coverage:

Step Calculation Result
1% of the base premium $38.99 × 0.01 $0.3899
Times uncovered months $0.3899 × 14 $5.4586
Rounded to nearest $0.10 $5.50 per month

That $5.50 doesn’t sound like much, but it is added every month for as long as you have Part D, and the base premium changes each year, so the dollar amount can change too. Three years without coverage would cost you far more than three years of a modest plan would have saved. Medicare also notes that people may choose to enroll to lower costs and avoid future penalties even when they use few drugs.

If your coverage is creditable, when can you wait?

The good news: you typically don’t need to get Medicare drug coverage as long as you keep your creditable coverage. That is why employees working past 65 often skip Part D. If you’re in that group, our article on the 20 employee rule and Medicare while working in Oregon covers how employer size changes your options.

Before you decide to wait, weigh three things:

  • Is your plan good for your drugs? Creditable on average doesn’t mean low copays for your medications.
  • What happens when the job ends? You’ll want to move quickly, because the 63-day clock begins when creditable coverage stops.
  • Does your spouse’s plan cover you separately? Coverage under a spouse’s plan counts only if the notice you receive says it’s creditable.

Is COBRA creditable coverage?

It depends on the plan. COBRA lets you keep the group health plan you had through an employer for a limited time after you leave. Because it’s the same plan, the question is whether that plan’s drug benefit is creditable, and the answer is in the notice the plan sponsor gives you. We don’t treat COBRA as automatically safe or automatically unsafe. Ask the plan administrator for the creditable or non-creditable statement in writing, and talk with us before you let a Medicare deadline pass because COBRA is in place. COBRA decisions can affect more than Part D, and the rules differ by Medicare part.

What if the plan asks about your coverage?

When you join a Part D plan, the plan may send you a letter asking whether you had creditable coverage. If you get one, return the form by its deadline or you may be charged a penalty.

This is a bigger deal than it sounds. CMS has noted that a significant number of reconsideration requests come from people who actually had creditable coverage but didn’t complete the required attestation forms. In other words, many penalties come from paperwork, not from a real lack of coverage. If you have your notices saved, you can answer with confidence.

If you’re unsure about the form, contact your plan directly, or ask us to look it over with you.

Perspective: why we think creditable coverage trips people up

In Central Oregon, we meet a lot of people who are still working at 65, or who retired from a job with a retiree plan. Almost all of them have the same story: someone told them years ago that they were “covered,” and nobody ever said whether that meant creditable.

We think the notice is the most underrated piece of mail in Medicare. It is the one document that tells you whether waiting is safe. We encourage people to read it as soon as it arrives, not on the day their job ends.

We also don’t think “creditable” should end the conversation. A plan can protect you from a penalty and still be a poor fit for your drugs. Part of our job is to compare that plan against what a Part D plan would cost you, including the annual deductible and how your medicines land on the formulary tiers. Sometimes the answer is to keep what you have. Sometimes it is to move. We would rather you make that choice with the facts than under a deadline.

— Jesse Zimmerman

Getting help in Bend and Central Oregon

If you have a notice in hand and aren’t sure what it means, or you’re about to leave a job and want to line up drug coverage without a gap, we can walk through it with you. We’re a local agency, and our consultations are free, in person or remote. We focus on education first, so you will understand your options and your dates before you decide anything.

Start with our Medicare enrollment assistance if you’re joining Part D or Medicare for the first time, or our annual Medicare plan reviews if you already have a plan and want to know whether it still fits. You can also browse Part D drug plans in Bend to see how we approach them.

A short checklist before you wait on Part D

  • You have a current creditable notice, and you know where it is.
  • You know the date your employer or retiree coverage could end.
  • You have a plan to join Part D before 63 days pass once creditable coverage ends.
  • You have checked that your regular medications are covered at reasonable cost.
  • You have asked about any special devices or supplies separately.

If you’re turning 65 soon and want the full picture, our step-by-step guide to turning 65 and our list of common mistakes when enrolling in Medicare are good places to begin.

FAQ

What does creditable coverage include?

It can include drug coverage from a current or former employer or union, TRICARE, the VA, or the Indian Health Service. Federal rules also list the Federal Employees Health Benefits Program, qualified State Pharmaceutical Assistance Programs, Medicaid, PACE, and some individual health plans. Your plan’s notice tells you whether your specific coverage qualifies.

What is the penalty for not having creditable prescription drug coverage?

If you go 63 days or more in a row without it after your initial enrollment period, you may pay a penalty when you join Part D. It is 1% of the national base beneficiary premium ($38.99 in 2026) for each full uncovered month, rounded to the nearest $0.10. It is added to your premium for as long as you have drug coverage.

How do I know if my coverage is creditable?

Your plan must tell you each year, usually through a notice sent before October 15. If you can’t find it or aren’t sure what it says, contact your plan, employer benefits office or plan administrator and ask for a written answer.

Is COBRA considered creditable coverage for Medicare Part D?

It can be, if the group plan you’re continuing has a drug benefit that meets the creditable standard. The plan’s creditable or non-creditable notice is the deciding document. Ask for it in writing, and get advice before you let any Medicare deadline pass.

Sources

Disclaimer: This article is for general educational purposes only and does not constitute personalized advice. Medicare rules and plan details change frequently.

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