Find the Best Medicare Plan in Colorado
Licensed Colorado Medicare specialists compare plans from UnitedHealthcare, Humana, and more — at no cost to you.
Compare Colorado Medicare Plans →* Referral compensation may apply. Cost to you: $0.
Medicare Advantage in Colorado — 2026 Overview
Approximately 42% of eligible Medicare beneficiaries in Colorado have chosen Medicare Advantage (Part C) over Original Medicare — above the national average of 40%. This reflects growing availability and competitive plan options throughout Colorado.
Medicare Advantage plans in Colorado must cover all the same services as Original Medicare (Parts A and B) and typically include additional benefits like dental, vision, hearing, and prescription drug coverage (Part D) at no extra premium.
Top Medicare Advantage Plans Available in Colorado
The following carriers offer Medicare Advantage plans in Colorado for 2026:
- UnitedHealthcare
- Humana
- Kaiser Permanente
Plan availability, premiums, and networks vary significantly by county in Colorado. Availability in rural Colorado counties may be more limited than in major metro areas. Always verify your specific county options using Medicare’s Plan Finder at medicare.gov/plan-compare.
What to Compare When Choosing a Colorado Medicare Advantage Plan
- Your doctors: Confirm your primary care physician and specialists are in-network. Colorado’s major health systems may be in some plans but not others.
- Your prescriptions: Enter all medications into the Medicare Plan Finder to see exact drug costs per plan. Drug formularies vary widely.
- Monthly premium vs. copays: A $0 premium plan isn’t always the lowest cost. Calculate your estimated annual total: premium + expected copays + drug costs.
- Star ratings: CMS rates Colorado plans annually on a 1–5 star scale. Choose 4-star or higher when available in your Colorado county.
- Extra benefits: Many Colorado Medicare Advantage plans include dental cleanings, eye exams, hearing aids, and fitness memberships not covered by Original Medicare.
2026 Medicare Advantage Enrollment Periods in Colorado
- Annual Enrollment Period (AEP): October 15 – December 7. You can switch to any Medicare Advantage plan in your Colorado county. New coverage begins January 1.
- Medicare Advantage OEP: January 1 – March 31. Switch once if already enrolled in a Medicare Advantage plan.
- Initial Enrollment Period: When you first become eligible for Medicare (turning 65 or joining due to disability).
- Special Enrollment: Moving within Colorado to a different county, losing coverage, or qualifying for Extra Help all trigger a SEP.
Free Help for Colorado Medicare Beneficiaries
The SHIP (State Health Insurance Assistance Program) in Colorado provides free, unbiased Medicare counseling from trained volunteers statewide. They can help you compare plans in your specific Colorado county with no obligation.
You can also use our free comparison tool (powered by eHealth’s licensed Colorado Medicare agents) to compare plans in minutes:
Colorado Insurance Resources
- Medicare.gov Plan Finder — Official plan comparison tool by ZIP code
- Colorado Department of Insurance — Plan complaints and consumer protection
- Complete Medicare Advantage Guide
- Medicare Advantage Costs Explained
- Medicare Advantage vs Original Medicare