The Medicare Drug Plan Checkup: 20 Minutes Before December 7, 2026
Medicare drug coverage has a way of looking stable right up until you reach the pharmacy counter and hear a new number. Plans tweak formularies, shift drugs between tiers, change pharmacy networks, and adjust premiums every year. The December 7, 2026 deadline is the last day to switch Medicare Advantage or Part D coverage for 2027. But the smartest audit starts with the plan you have now.
Set a timer for 20 minutes. You do not need a finance degree. You need your medication list, your Annual Notice of Change, and a willingness to ask three blunt questions.
Why a 20-minute audit beats a guess
Loyalty is a lovely quality in a dog. It is not a coverage strategy. Your plan is not required to keep your drugs on the same tier, keep your pharmacy in the preferred network, or keep your premium flat. The Annual Notice of Change is not junk mail. It is the plan telling you what will be different.
A short, focused audit can catch the expensive stuff before it catches you. You are looking for changes that affect your actual prescriptions, not the generic marketing sentence on the envelope.
Before the timer starts
Gather four things: your Medicare card, your current plan ID, a list of every prescription you take with the dose and how often you take it, and your 2027 Annual Notice of Change. If you have Medicare Advantage with drug coverage, your notice covers both the medical and drug sides of the plan.
Open Medicare Plan Finder or your plan's website. Have your pharmacy receipts nearby. If you use mail order or a 90-day supply, note that too. Small details change the math.
Minute 0 to 5: Build the real drug list
Write down the exact drug names, strengths, and quantities. Include insulin, inhalers, eye drops, creams, and anything you take only some months of the year. Note whether each drug is brand or generic. If you use a specialty drug, flag it—those are often the ones with the biggest rules and the biggest bills.
This list is your anchor. Without it, you are comparing plans in the abstract. With it, you can spot a coverage change in minutes.
Minute 5 to 12: Ask question one—what changed on the formulary?
The formulary is the plan's drug list. Check each drug against the 2027 formulary. You are not just looking for covered or not covered. Look for tier changes, prior authorization, step therapy, and quantity limits. A drug can stay on the formulary and still cost much more because it moved to a higher tier.
If a drug is missing, ask whether the plan covers a similar alternative or whether your doctor can request an exception. Do not assume your current drug is preferred just because it was last year. Formularies move.
Minute 12 to 17: Ask question two—what will insulin, vaccines, and my pharmacy actually cost?
For insulin, Part D plans cap cost sharing at $35 per month per covered insulin product in 2026. Check that your specific insulin and supplies are covered and that the plan applies the cap correctly. For vaccines, ACIP-recommended adult vaccines are $0 under Part D. That is a genuine win, but the pharmacy still has to be in the network.
Pharmacy rules matter as much as premiums. A low-premium plan can cost more if your regular pharmacy is out of network or if mail order is the only way to get the best price. Check preferred pharmacy cost sharing, standard pharmacy cost sharing, and whether a 90-day supply is cheaper.
Also look at the 2026 Part D out-of-pocket cap, which is $2,100. If you have very high drug costs, the cap can matter more than a small premium difference. If you get Extra Help, confirm that the plan handles it smoothly.
Minute 17 to 20: Ask question three—is loyalty costing me more?
Now compare total annual cost, not just the monthly premium. Add the premium, deductible, copays, and coinsurance for your actual drugs at your actual pharmacy. Compare your current plan with at least two alternatives. Plan Finder can do a lot of this for you, but read the details.
If you are on Original Medicare with a standalone Part D plan, switching drug plans is usually straightforward. If you are on Medicare Advantage with drug coverage, remember that changing plans may change your doctors and hospitals too. Do not trade a drug savings for a network problem you did not intend.
Switching is often the smarter move when a premium jump, a tier change, a prior authorization, or a pharmacy network change adds up to real money. Staying can be smarter when your plan is stable, your drugs are protected, and the savings elsewhere are tiny. The point is to know which one you are doing.
If December 7 slips past you
You may be locked into your 2027 plan unless you qualify for a Special Enrollment Period. That is why the 20-minute audit is worth doing now. If you miss the deadline, do not panic—check whether you qualify for Extra Help, a State Pharmaceutical Assistance Program, or a manufacturer patient assistance program. Those are safety nets, not substitutes for a plan that fits.
The MedSave Access takeaway
A Medicare drug plan is a tool, not a loyalty program. Twenty minutes with your drug list and your Annual Notice of Change can reveal whether your current plan still earns your business. Put the timer on, ask the three questions, and make the December 7, 2026 deadline work for you instead of against you.
