What are the best Medicare Advantage plans in Colorado?

Colorado has 6 five-star rated Medicare Advantage plans out of 115 total plans available. The average star rating across all plans is 4.1 out of 5. Browse by county below to find top-rated plans in your area.

How do Medicare Advantage star ratings work?

CMS rates MA plans 1-5 stars on clinical quality, member experience, and operations. Colorado averages 4.1★ - higher-star third (#7 of 49 rated states). Plans with 4+ stars are high quality.

How much do Medicare Advantage plans cost in Colorado?

The average monthly premium for Medicare Advantage plans in Colorado is $22.28. Premiums vary by county and plan type, many plans offer $0 premiums in exchange for network restrictions. Click a county below to see specific plan costs in your area.

How do I enroll in a Medicare Advantage plan in Colorado?

You can enroll during the Annual Election Period (October 15 - December 7) for coverage starting January 1, or during the Medicare Advantage Open Enrollment Period (January 1 - March 31). Visit Medicare.gov, call 1-800-MEDICARE, or contact a licensed Medicare insurance agent in Colorado. You must have Medicare Parts A and B to enroll.

What supplemental benefits do Medicare Advantage plans in Colorado include?

Many MA plans in Colorado (higher-star third) include dental, vision, hearing, fitness, OTC allowances, or transportation - extras Original Medicare omits. Benefits still vary by contract; check the county Landscape row.

Medicare Advantage · State · 2026 plan year

Medicare Advantage in Colorado

Name: Medicare Advantage Plans - Colorado
Creator: PlainMedicare
License: https://creativecommons.org/publicdomain/zero/1.0/

According to the Centers for Medicare & Medicaid Services (CMS) 2026 plan-year files, 115 plans across 64 counties; find your county to compare every plan available where you live.

Compiled by Plainmedicare · September 1, 2026

115
Plans available: 4.1★
Avg CMS rating: $22.28
Avg premium/mo: 6
5-star plans

The short answer

Colorado ranks #19 of 49 by Medicare Advantage plan inventory (115 plans) but #7 by average CMS star (4.06★).

#19
inventory rank: 115
plans statewide: #7
avg star rank: 4.06★
mean CMS rating

Plan inventory and average star are independent CMS signals; a large catalog is not the same as the highest mean quality score.

Product mix · CO plans_unique

How 104 Colorado plans split by CMS plan type

HMO 40 plans (38%) Local PPO 38 plans (37%) HMO POS 26 plans (25%)

Exclusive CMS plan-type codes for this state's representative plans_unique rows, orthogonal to the star-bucket chart below. Source: CMS landscape, 2026.

Higher average CMS star band

Colorado in the higher-star third

Colorado ranks #7 of 49 rated states by mean CMS star (4.06★) - top-third quality band. Colorado's mean CMS star 4.06★ sits in the higher-star third of rated states (#7 of 49). 6 plans reached the top 5-star tier (year-round Special Enrollment rights for those contracts). County (FIPS) service areas still decide what is sold where you live - open a county below before the October 15 - December 7 Annual Election Period closes.

plans #19/49 · stars #7/49 · 64 counties · avg prem $22.28/mo

Higher-star MA quality band in Colorado

Colorado offers 115 Medicare Advantage plans across 64 counties. Mean star 4.1★ places Colorado in the higher-star third (#7 of 49). Confirm premiums and networks on <a class="underline" href="https://www.medicare.gov/plan-compare/" target="_blank" rel="external noopener">Medicare.gov Plan Compare</a>.

Where Colorado sits on CMS quality

Average CMS star rating across the state's own Medicare Advantage plans, against every state and territory in the CMS file

4.06★ Top 12% higher than 88% of 49 states and territories

Each bar is a band; taller bars hold more states and territories. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Advantage Star Ratings 2026 · 2026-09-01

Counties in Colorado

Click a county to see all Medicare Advantage plans available in your area.

Next: understanding star ratings · choosing a plan.

Note: PlainMedicare provides publicly available CMS data for informational purposes only. This is not medical or insurance advice. Consult a licensed Medicare counselor or insurance agent before making enrollment decisions. Plan availability and premiums change annually, always verify with Medicare.gov or 1-800-MEDICARE.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from the Centers for Medicare & Medicaid Services (CMS). Retrieved and formatted by PlainMedicare

Using Colorado's Medicare Advantage market

Plan availability and star ratings vary by county, not just by state.

Colorado beneficiaries can choose from 115 distinct Medicare Advantage plans across 64 counties (#19 of 49 states by plan count) - look up your own county for what's actually sold there. Browse by county
The state's mean CMS star rating ranks #7 of 49 - see how star ratings are built before comparing plans. How star ratings work
Weigh total cost, not just premium: compare plan details using Medicare.gov before you enroll. Medicare Plan Compare

State-level figures average every county's filings; the plans actually sold where you live can differ from the state total.

PlainMedicare is rendered directly from CMS Medicare Advantage and Part D public files, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a correction. Data current as of 2026-09-01.

CMS lists 131,985 Medicare Advantage and Part D plan records in the current public files. PlainMedicare refreshes this registry with each annual release.