Medicare Part D

Colorado Part D Plans for 2027: 8 Stand-Alone Drug Plans From 4 Insurers, Down From 10

DENVER — Coloradans who get their Medicare prescription coverage through a stand-alone Part D drug plan will have 8 plans to choose from in 2027, offered by 4 insurers across the state. That is a step down from 10 plans and 5 insurers in 2026, according to the CMS Landscape files for the Colorado Part D region.

Medicare Part DColorado

How many stand-alone Part D plans are offered in Colorado for 2027?

Colorado has 8 stand-alone Medicare Part D prescription drug plans from 4 insurers for 2027, compared with 10 plans from 5 insurers in 2026. The state is a single CMS Part D region, so every one of those 8 plans is available to Medicare beneficiaries anywhere in Colorado.

Two companies that offered stand-alone drug plans in Colorado in 2026 — Aetna Medicare and HealthSpring — are not in the 2027 stand-alone lineup. One insurer, Blue Cross and Blue Shield of IL, NM, OK, TX, is new to the Colorado stand-alone market for 2027. The net result is two fewer plans and one fewer insurer than a year ago. These counts cover stand-alone Part D only; drug coverage packaged inside Medicare Advantage plans is separate and not included here.

Which insurers offer stand-alone Part D plans in Colorado for 2027?

Four insurers offer stand-alone Part D plans in Colorado for 2027. Listed alphabetically with their 2027 plan counts:

• Blue Cross and Blue Shield of IL, NM, OK, TX — 1 plan
• Humana — 3 plans
• UnitedHealthcare — 2 plans
• Wellcare — 2 plans

Plan names, formularies, pharmacy networks and premiums vary by plan. Those details live on the Medicare Plan Finder at Medicare.gov and in each insurer's own plan documents.

What do the 2027 Part D out-of-pocket cap and deductible limit mean in Colorado?

Starting January 1, 2027, no one with Medicare Part D will pay more than $2,400 out of pocket for covered prescription drugs in a calendar year, and no Part D plan can set an annual deductible higher than $700. The out-of-pocket cap is $2,100 in 2026, so the 2027 figure is $300 higher.

Both numbers are set nationally by CMS and apply to every stand-alone Part D plan sold in Colorado as well as to the Part D coverage built into Medicare Advantage plans. Individual plans can choose a lower deductible than $700, and the way costs are shared before the cap is reached is different in each plan. For context, the 2027 Part D base beneficiary premium — a national figure used mainly to calculate the late-enrollment penalty — is $41.33; the actual monthly premium a Coloradan pays depends on the plan they pick.

Which Colorado Part D plans can someone with full Extra Help join at no premium in 2027?

In 2027, 2 of Colorado's 8 stand-alone Part D plans are low-income benchmark plans, meaning a person who qualifies for full Extra Help can enroll in them with no monthly plan premium. In 2026, there are also 2 benchmark plans in the state.

Extra Help, also called the Low Income Subsidy, lowers premiums, deductibles and copays for Part D for people with limited income and resources. The Social Security Administration handles Extra Help applications, and the current list of benchmark plans in Colorado is on the Medicare Plan Finder at Medicare.gov.

How does stand-alone Part D in Colorado compare with the drug coverage in Medicare Advantage?

Stand-alone Part D plans are drug-only policies that attach to Original Medicare, and Colorado has 8 of them for 2027. Most Medicare Advantage plans, by contrast, bundle medical and drug coverage into one plan — those plans are not counted in the 8 stand-alone figure above.

A Coloradan generally picks one path or the other for drug coverage: Original Medicare plus a stand-alone Part D plan, or a Medicare Advantage plan that includes Part D. The same federal rules — the $2,400 out-of-pocket cap and the $700 maximum deductible — apply to the Part D portion either way in 2027.

How can Coloradans check a plan's drug list and pharmacies before December 7, 2026?

The Medicare Plan Finder at Medicare.gov lets Coloradans enter their ZIP code and their prescriptions, then see which 2027 Part D plans cover those drugs and which pharmacies are in each plan's network. The Annual Enrollment 2027 window runs October 15 through December 7, 2026, and the choice made during that window takes effect January 1, 2027.

A few things worth confirming for each plan before enrolling: whether every current prescription is on the plan's formulary, whether the preferred local or mail-order pharmacy is in network, and whether any drug requires prior authorization or step therapy. These details can change from year to year even within the same plan, so the Annual Notice of Change that current enrollees receive each fall is a useful starting point.

Where can Coloradans get free help with Part D questions for 2027?

Medicare.gov offers free, around-the-clock plan comparisons through the Plan Finder, and 1-800-MEDICARE (TTY 1-877-486-2048) takes calls 24 hours a day, seven days a week, to answer questions about Part D, Extra Help and enrollment periods. Neither service charges a fee and neither sells insurance.

The Social Security Administration announced a 3.6 percent cost-of-living adjustment for Social Security benefits payable beginning January 2027; questions about that COLA, or about Extra Help, go to SSA. The 2027 Part B standard premium, Part B deductible and IRMAA income-related surcharges had not been announced as of this writing; CMS typically releases those figures in the fall.