Medicare Part D

Before Jan. 1, decode the ANOC: what a tier bump really means

# Before Jan. 1, decode the ANOC: what a tier bump really…

GREENVILLE, S.C. — The thick envelope landing in Greenville mailboxes this fall isn't junk mail. It's the Annual Notice of Change, or ANOC, and it's the single best preview of how your Part D drug coverage will look on January 1, 2027. Every year around late September, Part D and Medicare Advantage plans mail this document to current members. It spells out what's shifting — the drug list, the tiers, the rules attached to certain prescriptions — before the Annual Enrollment Period runs October 15 through December 7.

The reason it matters: a medication you take today may still be covered in 2027, but under a different tier or with a new hurdle in front of it. Reading the ANOC before AEP closes is how you catch that in time to act.

What the ANOC actually is

The Annual Notice of Change is a plain-language summary of every material change your plan is making for the coming year. It's separate from the Evidence of Coverage (the longer contract document) and it's designed to be scanned. Look for side-by-side "this year vs. next year" tables covering premiums, deductibles, and — most important for anyone on regular medications — the drug formulary.

If you didn't receive one by early October and you're enrolled in a stand-alone Part D plan or a Medicare Advantage plan with drug coverage, call the plan directly and ask them to resend it. Greenville is in Greenville County, where a range of Part D and Medicare Advantage plans are offered; each one sends its own ANOC.

How drug lists change year to year

Formularies — the lists of drugs a plan covers — are not frozen. Plans update them annually, and the changes usually fall into four buckets:

Tier changes. Most Part D plans sort drugs into tiers, with lower tiers costing less out of pocket and higher tiers costing more. A drug can move up a tier (usually meaning higher cost-sharing) or, less often, down a tier. The drug itself hasn't changed; the category it sits in has.

Prior authorization (PA). The plan will pay, but only after your prescriber submits paperwork showing the drug is medically necessary for you. If a drug you already take suddenly requires PA next year, your pharmacy may not be able to fill it on January 2 without that approval on file.

Quantity limits. The plan caps how much of the drug it will cover in a given period — for example, a set number of tablets per 30 days. If your prescribed dose exceeds the new limit, your doctor can request an exception.

Step therapy. The plan requires you to try a preferred (often lower-cost) alternative first. If that drug doesn't work or isn't appropriate, you can move to the originally prescribed one. Again, an exception request is the usual path if step therapy doesn't fit your situation.

How to read your ANOC in about 15 minutes

Pull out a highlighter and your current medication list. Then:

1. Find the drug list or formulary section. Look up every prescription you take, by name and dose. 2. Note the tier for 2027 and compare it to the tier you have now. 3. Check for the letters PA, QL, or ST next to each drug — those flag prior authorization, quantity limit, and step therapy. 4. Look at the deductible and any changes to the pharmacy network, including mail-order and preferred retail pharmacies. 5. If anything you rely on has moved or picked up a new restriction, write it down. That list is what you'll take into an AEP conversation.

The 2026 figures that frame your 2027 decision

Some program-level facts from Medicare help put ANOC changes in perspective. In 2026, the Part D out-of-pocket cap is $2,100 — once you hit that in covered drug costs, you pay nothing more for covered Part D drugs the rest of the year. The maximum Part D deductible is $615, though many plans set theirs lower. The coverage gap (the old "donut hole") has been gone since 2025, leaving three phases: deductible, initial coverage, and catastrophic.

The Medicare Prescription Payment Plan is also available. It lets you spread your out-of-pocket drug costs across monthly payments instead of paying big amounts at the pharmacy counter. It doesn't lower what you owe; it smooths the timing. IRMAA surcharges — the higher premiums some higher-income beneficiaries pay — begin above $109,000 in income for a single filer in 2026.

CMS releases 2027 figures later; watch medicare.gov for updates as the year turns.

If a drug you take gets dropped or restricted

You have options, and none of them require panic:

• Transition fill. New members and continuing members affected by formulary changes can generally get a one-time transition supply (typically 30 days) of an affected drug early in the plan year. That buys time to work with your prescriber.
• Formulary exception. Your doctor can request that the plan cover a non-formulary drug, waive step therapy, or lift a quantity limit based on medical necessity.
• Switch plans during AEP. If the new formulary is a poor fit for your medications, October 15 – December 7 is the window to move to a different Part D or Medicare Advantage plan for 2027.
• Medicare Advantage Open Enrollment. From January 1 – March 31, Medicare Advantage members get one additional chance to switch MA plans or return to Original Medicare.

Where to get help in Greenville

For personalized answers — not a sales pitch — South Carolina's State Health Insurance Assistance Program (SHIP), known locally as SC Thrive / GetCare SC / SHIP, offers free, unbiased counseling for Medicare beneficiaries. You can also call 1-800-MEDICARE (1-800-633-4227) 24/7, or use the Plan Finder tool at medicare.gov to compare 2027 plans side by side once they load in early October.