Medicare 2026

How to Ask Your Medicare Drug Plan to Cover a Drug: The Exception Process, Step by Step

If your pharmacist tells you a prescription isn't covered, costs more than you expected, or needs extra paperwork before the plan will fill it, you aren't stuck. Medicare drug plans (Part D plans and the drug portion of most Medicare Advantage plans) have a formal process you can use to ask the plan to cover a specific medication or charge you less for it. It's called an exception request, and knowing how it works can save you time, money, and worry.

What an "exception" actually is

Every Medicare drug plan uses a formulary — the list of drugs it covers — and that list is organized into tiers that determine your share of the cost. Plans also use utilization rules, such as requiring prior authorization, trying another drug first (step therapy), or limiting the quantity dispensed in a given period.

There are two main types of exception requests:

• Formulary exception. You're asking the plan to cover a drug that isn't on its drug list, or to lift a rule like prior authorization, step therapy, or a quantity limit on a drug that is listed.
• Tiering exception. You're asking the plan to charge you the lower cost-sharing of a preferred tier for a non-preferred drug. Plans are allowed to decline tiering exceptions for drugs placed on their specialty tier.

Either way, the goal is the same: get access to the medication your prescriber believes you need, at a price that reflects your clinical situation.

Step 1: Talk to your prescriber

Exceptions hinge on your prescriber's medical judgment. Call the office and explain what happened at the pharmacy. The plan will need a supporting statement from your prescriber saying that the covered alternatives either would not be as effective for you, would cause harmful side effects, or both. That statement can be provided by phone or in writing.

If you're asking for a tiering exception, the supporting statement generally needs to show that the preferred drugs on lower tiers aren't appropriate for your condition.

Step 2: Ask the plan for an exception

You — or your prescriber or an appointed representative — contact the plan to start the request. Each plan has its own form and fax or phone number; you'll find them in your plan materials or by calling the member services line on your plan ID card. Make clear whether you're asking for a standard decision or an expedited (fast) decision.

A request should be expedited when waiting the standard time could seriously jeopardize your life, health, or ability to regain maximum function. Your prescriber can indicate this.

Step 3: Wait for the decision — but not long

Once the plan has your prescriber's supporting statement, the clock starts:

• Standard request: a decision within 72 hours.
• Expedited request: a decision within 24 hours.

If the plan approves the exception, it generally stays in place through the end of the plan year, as long as your prescriber continues to prescribe the drug and it remains safe for you.

Step 4: If the plan says no, you can appeal

A denial is not the end of the road. The denial notice from your plan will explain how to appeal and the deadlines involved. There are multiple levels of appeal in Medicare's drug coverage process, and many enrollees get relief at one of these later steps. Keep copies of everything — the request, the denial notice, your prescriber's statement, and any pharmacy receipts.

New to a plan? Ask about a transition supply

If you recently joined a new drug plan and a medication you already take isn't on the new formulary, you can usually get a one-time temporary (transition) supply during your first 90 days. That gives you breathing room to talk with your prescriber about switching to a covered alternative or filing an exception request. Ask the pharmacy or the plan how to request it.

Why coverage can change from one year to the next

Formularies aren't frozen. Plans can add or drop drugs, change tiers, or add utilization rules from one year to the next. Each fall, your plan sends an Annual Notice of Change showing what will be different the following year. It's worth reading carefully — especially the drug list — before Annual Enrollment, which for 2027 coverage runs October 15 through December 7, 2026, with changes taking effect January 1, 2027.

A few program facts worth knowing

A couple of national Part D figures that may matter if you take expensive drugs:

• The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027. Once your out-of-pocket spending on covered drugs hits that amount in a calendar year, you pay $0 for covered drugs for the rest of the year.
• The most a Part D plan may charge as a deductible in 2027 is $700 (plans can set a lower deductible, or none).

If you have Medicaid or Extra Help, you have a monthly Special Enrollment Period to move to Original Medicare with a stand-alone Part D plan or switch stand-alone plans. Full-benefit dual-eligible individuals can also join an integrated D-SNP in any month.

Choosing between Medicare Advantage and Original Medicare with a Medigap policy and a stand-alone Part D plan involves trade-offs — networks, out-of-pocket structure, extra benefits, and flexibility all differ — and the right fit depends on your health, your drugs, your providers, and your budget. This article doesn't recommend one over the other.

Where to turn for help

For official rules, plan comparisons, and the full Medicare & You handbook, visit Medicare.gov, or call 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, 7 days a week (TTY 1-877-486-2048). Your plan's member services line, printed on your plan ID card, is the fastest way to start an exception request.