2027 Medicare Negotiated Drug Prices: What to Check Before You Choose a Part D Plan

The price Medicare negotiates for a medicine is not the price you automatically pay at the pharmacy. As you shop for 2027 coverage this fall, the second round of 15 negotiated Part D drugs gives you one more reason to check your actual prescription list, pharmacy and total yearly plan cost. Here is a practical way to do that without mistaking a government headline for a personal savings estimate.

What is new for 2027?

According to the CMS selected-drugs and negotiated-prices page, updated September 22, 2026, 15 drugs covered under Part D were negotiated for the second cycle and their prices take effect January 1, 2027. This is a different group from the first set whose prices took effect in 2026. The CMS page includes links to a fact sheet and to the drug-code file, which may be updated as products change. It is worth checking the current listing rather than relying on an old social-media list.

The 15 selected-drug groups: look up your exact product

CMS lists these 15 selected-drug groups for 2027: Ozempic/Rybelsus/Wegovy; Trelegy Ellipta; Xtandi; Pomalyst; Ofev; Ibrance; Linzess; Calquence; Austedo/Austedo XR; Breo Ellipta; Xifaxan; Vraylar; Tradjenta; Janumet/Janumet XR; and Otezla/Otezla XR. Grouped brand names count as one selected drug in the CMS list. Check its live drug-code file for your exact product and formulation before enrolling; the file may change after its September 21, 2026 version. CMS requires Part D plans to include selected drugs with negotiated prices on formularies, but specific coverage criteria, indications, restrictions, pharmacy terms and your cost still need checking. Do not change medication to chase a headline; discuss treatment with your prescriber.

CMS's fact sheet on the 2027 negotiated prices gives a useful illustration: it lists $175 as the negotiated price for a 30-day equivalent supply of Trelegy Ellipta, compared with a $654 2024 wholesale list price. Those numbers are different measures from a beneficiary's actual copay or annual total. They do not mean an individual who paid $654 in 2026 will pay $175 in 2027, or that their bill falls by the displayed percentage.

Worked lookup: Trelegy Ellipta

If your label says Trelegy Ellipta, find the name in the CMS second-cycle fact sheet, then compare the strength and product identifier in the live CMS file to your prescription. Next enter that actual prescription and your pharmacy in Medicare Plan Compare, and check each candidate plan's conditions and annual spending projection. Do not enter $175 as your personal copay: that is CMS's negotiated 30-day-equivalent price, not your pharmacy claim. If a plan estimate appears to conflict with its formulary or your pharmacist's information, ask the plan to reconcile the exact product and coverage terms before enrolling. This product-specific investigation, rather than a generic lowest-premium checklist, is the purpose of this guide.

Why a lower negotiated price may not equal your savings

A negotiated maximum fair price changes the underlying price available under the Medicare negotiation program, but the amount a person owes depends on the Part D benefit design, cost-sharing stage, formulary and plan rules. Other factors include whether you have Extra Help, where you fill prescriptions and whether the medicine is covered for your use. A plan may change premiums, deductibles, tiers or pharmacy networks between years. A savings claim based on the difference between 2024 list price and a 2027 negotiated price ignores these moving pieces.

Use open enrollment as your decision window

Medicare Plan Compare offers 2027 plan comparisons this fall. The annual change period runs October 15 through December 7, 2026; the plan must receive your enrollment request by December 7 for coverage beginning January 1, 2027. Even if you plan to stay put, get the 2027 Annual Notice of Change from your current plan and compare alternatives. Plans and pharmacies vary by ZIP code, so a friend's bargain is not automatically yours.

Start with the full annual estimate. Add the 12 monthly premiums to estimated annual prescription spending, including deductible and cost sharing once, plus other relevant plan charges. Check whether your usual pharmacy is in the network and preferred. If you have Medicare Advantage with drug coverage, examine the medical network and other health benefits together with the drug costs; changing one piece can affect the other. The separate Medicare enrollment checklist covers the wider decision.

A comparison with deliberately hypothetical numbers

Suppose a retiree taking Trelegy Ellipta and two generics compares two hypothetical 2027 plans. Plan A averages $42 a month in premiums and $65 a month in prescription spending; Plan B averages $18 and $110 respectively. The invented prescription averages already incorporate estimated deductible and cost-sharing effects: do not add the deductible a second time. Ignoring other plan differences, A's annual total is $1,284; B's is $1,536. A has a higher premium but is $252 lower in this simplified example. These are not actual plan quotes or a promise of negotiated-price savings; estimate the total with your own drug list and actual 2027 plan documents.

If you have a high-cost covered prescription, check how the plan projects costs over the year, not just January's first fill. A deductible can make early fills more expensive. For an expensive therapy, compare the projection with and without the drug only as a sensitivity test; do not assume the medicine can be stopped. If you are comparing Original Medicare plus a standalone Part D plan with a Medicare Advantage drug plan, add the differences in medical access and potential out-of-pocket exposure as separate decision criteria.

The quick 2027 drug-specific check

1. Find your exact prescription in the dated CMS second-cycle list and confirm its product details in the live drug-code file.
2. Enter your drug, dose, quantity and pharmacy into 2027 Medicare Plan Compare. Save annual estimates for each candidate plan, including premiums and modeled cost sharing.
3. Ask each plan about the exact product's coverage conditions and compare the first fill with the annual estimate after coverage starts. For a full medical and drug enrollment checklist, use our linked enrollment guide.

People facing a new expensive prescription can also speak with their State Health Insurance Assistance Program (SHIP) for free, personalized Medicare counseling. Ask the pharmacist which pharmacy options are available under your plan, and ask the plan directly about authorization or formulary questions. For context on the previous negotiation cycle, read our 2026 Part D guide; do not use its plan-year assumptions as your 2027 quote.

What about premiums, the annual cap and IRMAA?

A negotiated drug price, an individual plan premium, Part D's annual out-of-pocket rules and the Part D income-related monthly adjustment amount (IRMAA) are distinct concepts. Do not subtract a CMS negotiated price directly from last year's spending or assume a list-price discount is additive to other protections. Verify the applicable 2027 benefit design with Medicare and your plan; do not reuse a prior-year cap figure as though it were the current year's number. For higher-income households, an income-related surcharge can sit on top of the selected plan's premium.

Drug savings might free room in a retirement budget; a change in coverage may do the opposite. A couple should compare each spouse's prescriptions individually rather than assume the same plan suits both. If a medicine is billed under Part B rather than Part D, check its applicable coverage path before using this Part D checklist. A brand's presence in a press release does not by itself decide whether a particular claim is payable.

Using Bullseye for the cash-flow question

Bullseye can project retirement expenses and Medicare costs year by year and test scenarios. It does not identify which drugs are negotiated, compare plan formularies or determine Medicare eligibility and coverage rules for you. After checking actual plan estimates outside the app, manually enter plausible healthcare spending assumptions: for example, a baseline and a higher-cost scenario if one prescription changes. The retirement planning tool can show how different expense inputs affect long-run withdrawals and cash flow, but it is not a Medicare Plan Compare substitute.

Do not confuse a one-year change in prescription spending with a permanent, guaranteed change. If one comparison suggests $80 less per month, a separate sensitivity scenario can assume $960 lower annual expense; another can assume no change or an increase. These are user-supplied hypotheses, not an automated drug-price forecast. For a broader budgeting starting point, read our retiree healthcare cost estimate while updating every 2027 input from your own coverage documents.

Sources and scope: CMS selected-drug listing (updated September 22, 2026); CMS 2027 negotiated-price fact sheet; Medicare Plan Compare (accessed October 26, 2026). This is general education, not medical, insurance or individualized financial advice. Coverage and costs depend on the person, product, plan and year.