Larimer County, Colorado

Larimer County, CO Medicare Plans for 2027

Larimer County has one of the shorter Medicare Advantage lists in this guide, and it loses plans for 2027. Here is the full list and what changes.

Plan data: CMS 2027 Landscape, retrieved 2026-10-14. Page reviewed 2026-10-14. Meetings by phone or video, or at the Brighton office.

  • 24 Medicare Advantage plans in Larimer County, 2027
  • 22 With a $0 Part C premium (19 with $0 for Parts C and D combined)
  • 8 Organizations offering plans
  • 22 Special Needs Plans, counted separately

Larimer County Medicare at a glance for 2027

  • 24 Medicare Advantage plans for Larimer County, Special Needs Plans not counted. Of those, 22 have a $0 Part C premium, and 19 have a $0 combined monthly premium for Parts C and D (14 of those include drug coverage; 5 have no drug coverage, so no Part D premium).
  • In-network out-of-pocket maximums from $4,300 to $9,850 a year
  • 8 insurance companies offer them
  • 8 standalone Part D plans in Colorado
  • You still pay the Part B premium, $202.90 a month in 2026 (the 2027 amount is announced by CMS around November)
  • Annual Enrollment: October 15 to December 7, 2026, for coverage that starts January 1, 2027

Examples of plans with drug coverage and a $0 combined monthly premium for Parts C and D, by 2026 star rating and out-of-pocket limit

  • AARP Medicare Advantage Essentials from UHC CO-4 (HMO-POS)UnitedHealthcare · Part C + D premium $0 a month · 4.5★ (2026) · out-of-pocket max $5,500 · drug deductible $685
  • Kaiser Permanente Senior Advantage Core North (HMO-POS)Kaiser Permanente · Part C + D premium $0 a month · 4.5★ (2026) · out-of-pocket max $6,600 · drug deductible $0
  • Aetna Medicare Signature (PPO)Aetna Medicare · Part C + D premium $0 a month · 4.5★ (2026) · out-of-pocket max $7,150 · drug deductible $700

CMS Medicare Advantage and Part D Landscape, contract year 2027. A plan's fit depends on your doctors and prescriptions; Lisa checks both before you choose.

By the numbers

2027 Medicare Advantage in Larimer County

Every figure comes from the CMS Landscape file for contract year 2027. Special Needs Plans are counted separately.

  • $2.67 Average monthly Part C premium
  • $9.39 Average Part C + D premium
  • 19 Plans that include drug coverage
  • $4,300 Lowest in-network out-of-pocket limit
  • $6,529 Average in-network out-of-pocket limit
  • $9,850 Highest in-network out-of-pocket limit
  • $423.05 Average Part D deductible (plans with drugs)
  • 12 Plans with a 2026 rating of 4★ or more
  • 3.98★ Average 2026 star rating (rated plans)

Two ways to count "$0 premium" plans: 22 have a $0 Part C premium, and 19 have a $0 combined monthly premium for Parts C and D (14 of those include drug coverage; 5 have no drug coverage, so no Part D premium). The average premium figures likewise show the Part C premium and the combined Part C + D premium separately. Star ratings shown are 2026 ratings, because CMS’s 2027 ratings are not yet in our data snapshot.

PPO plans are the largest group here (11 of 24), and 5 plans have no drug coverage.

Larimer County Medicare Advantage plans by type, contract year 2027 (Special Needs Plans excluded)
Plan typePlans$0 Part C premiumAverage Part C premiumAverage out-of-pocket limitWithout drug coverage
PPO 11 10 $0.82 $7,077 3
HMO 7 7 $0 $6,101 1
HMO-POS 6 5 $9.17 $6,025 1
What changes for 2027

Larimer County plans: 2026 to 2027

Your plan mailed an Annual Notice of Change by September 30, 2026. It lists what changes on January 1, 2027: premium, deductible, out-of-pocket limit, copays, drug list and network. Compare it line by line, or bring it to Lisa.

Counting plans with drug coverage, Special Needs Plans included, the Larimer County list goes from 50 plans in 2026 to 41 in 2027, and the average in-network out-of-pocket limit moves from $6,882 to $7,753.

Larimer County: Medicare Advantage plans with drug coverage, Special Needs Plans included (CMS Landscape 2026 and 2027)
Measure20262027
Plans with drug coverage (SNPs included)5041
With a $0 combined monthly premium for Parts C and D2627
Average in-network out-of-pocket limit$6,882$7,753
Average Part D deductible$438.60$542.56
Maximum Part D deductible allowed by CMS$615$700
Part D out-of-pocket cap$2,100$2,400

These counts cover plans with drug coverage, Special Needs Plans included, so they differ from the headline count of 24, which leaves out Special Needs Plans and includes plans without drug coverage. Clear Spring Health has no Medicare Advantage plan with drug coverage in Larimer County for 2027.

Of the 18 plans below, 11 plans end with no similar plan in the county, 4 plans end but the same company offers a plan with the same or a similar name under a new plan ID, and 3 plans fold into another plan automatically.

Plans ending, leaving or merging in Larimer County for 2027 (CMS plan crosswalk)
2026 planCarrierCMS crosswalk statusMembers move to
UHC Dual Complete CO-S4 (HMO-POS D-SNP) H0624-006 UnitedHealthcare Consolidated Renewal Plan / Terminated/Non-renewed Contract UHC Dual Complete CO-S4 (HMO-POS D-SNP)H0624-008 (moved automatically)
HealthSpring TotalCare (HMO D-SNP) H0672-009 HealthSpring Terminated/Non-renewed Contract Not moved automatically. This plan ends in this county, but HealthSpring offers a plan with the same name under a new plan ID: HealthSpring TotalCare (HMO D-SNP)H2752_009. To keep it, enroll in the new plan by December 7, 2026.
HealthSpring TotalCare Plus (HMO D-SNP) H0672-010 HealthSpring Terminated/Non-renewed Contract Not moved automatically. This plan ends in this county, but HealthSpring offers a plan with the same name under a new plan ID: HealthSpring TotalCare Plus (HMO D-SNP)H2752_008. To keep it, enroll in the new plan by December 7, 2026.
HealthSpring Preferred (HMO) H0672-024 HealthSpring Terminated/Non-renewed Contract Not moved automatically. This plan ends in this county, but HealthSpring offers a plan with the same name under a new plan ID: HealthSpring Preferred (HMO)H2752_006. To keep it, enroll in the new plan by December 7, 2026.
Select Health Medicare Essential (HMO) H1994-027 Select Health Renewal Plan with SAR Not moved automatically. This plan ends in this county, but Select Health offers a plan with the same name under a new plan ID: Select Health Medicare Essential (HMO)H1994_047. To keep it, enroll in the new plan by December 7, 2026.
Select Health Medicare + Kroger (HMO) H1994-030 Select Health Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Select Health Medicare Flex (HMO) H1994-031 Select Health Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Select Health Medicare Active (HMO) H1994-035 Select Health Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
AARP Medicare Advantage from UHC CO-0013 (PPO) H2406-104 UnitedHealthcare Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
AARP Medicare Advantage from UHC CO-0017 (PPO) H2406-110 UnitedHealthcare Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Kaiser Permanente Senior Advantage Choice North (PPO) H3138-003 Kaiser Permanente Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Aetna Medicare Signature (HMO-POS) H3931-153 Aetna Medicare Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Aetna Medicare Signature (HMO-POS) H4711-008 Aetna Medicare Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Aetna Medicare Dual Care (HMO D-SNP) H4711-012 Aetna Medicare Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Humana Value Plus H5216-195 (PPO) H5216-195 Humana Consolidated Renewal Plan HumanaChoice H5216-223 (PPO)H5216-223 (moved automatically)
HumanaChoice SNP-DE H5216-468 (PPO D-SNP) H5216-468 Humana Consolidated Renewal Plan HumanaChoice SNP-DE H5216-267 (PPO D-SNP)H5216-267 (moved automatically)
Clear Spring Health BrightPath Advantage (HMO) H6379-001 Clear Spring Health Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.
Clear Spring Health Balance+ Diabetes & Heart (HMO C-SNP) H6379-002 Clear Spring Health Terminated/Non-renewed Contract Ends with no similar plan in this county. Not moved automatically: choose a new plan.

New to the Larimer County list for 2027: UHC Dual Complete CO-S4 (HMO-POS D-SNP), Select Health Medicare Essential (HMO), HealthSpring Preferred (HMO), HealthSpring TotalCare Plus (HMO D-SNP), HealthSpring TotalCare (HMO D-SNP), Humana Total Complete (HMO), Aetna Medicare Full Dual Extra Care (HMO D-SNP), DEVOTED C-SNP GIVEBACK EXTRAS 017 CO (HMO C-SNP), DEVOTED GIVEBACK EXTRAS 020 CO (HMO). Some of these carry the same or a similar name as a 2026 plan that ends (see the table above); they are new plan IDs, so members of the old plan must enroll in them.

If your plan is not renewing: you receive a non-renewal letter in October. You can pick a new plan during the Annual Enrollment Period (October 15 to December 7, 2026), and a Special Enrollment Period runs through the end of February 2027. Confirm your dates on Medicare.gov. The official Medicare & You handbook explains each option.

Every plan

2027 Medicare Advantage plans in Larimer County

Grouped by plan type, because type decides how the network works: HMOs expect you to stay in network, PPOs let you go outside it at a higher cost.

PPO

11 plans, 10 with a $0 Part C premium, average Part C premium $0.82, average out-of-pocket limit $7,077, 3 without drug coverage.

PPO plans in Larimer County, contract year 2027
Plan2026 starsPart C premiumPart C + DOut-of-pocket limitPart D deductiblePlan ID
Aetna Medicare Eagle (PPO)Aetna Medicare, no drug coverage 4.5★ $0 Not published $5,500 No drug coverage H5521_378
Aetna Medicare Signature (PPO)Aetna Medicare 4.5★ $0 $0 $7,150 $700 H5521_250
Aetna Medicare Value Care (PPO)Aetna Medicare 4.5★ $0 $18.40 $7,150 $700 H5521_443
DEVOTED CHOICE 001 CO (PPO)Devoted Health 4.0★ $0 $0 $6,050 $461 H4808_001
DEVOTED CHOICE GIVEBACK 003 CO (PPO)Devoted Health 4.0★ $0 $0 $8,950 $461 H4808_003
DEVOTED CHOICE MA ONLY 004 CO (PPO)Devoted Health, no drug coverage 4.0★ $0 Not published $7,900 No drug coverage H4808_004
Humana Essentials Plus Giveback (PPO)Humana 3.5★ $0 $0 $7,850 $450 H5216_435
Humana USAA Honor Giveback (PPO)Humana, no drug coverage 3.5★ $0 Not published $6,200 No drug coverage H5216_436
Humana Value Choice (PPO)Humana 3.5★ $0 $53 $6,700 $400 H5216_078
HumanaChoice H5216-223 (PPO)Humana 3.5★ $9 $20 $4,900 $300 H5216_223
HealthSpring True Choice (PPO)HealthSpring 3.0★ $0 $0 $9,500 $700 H7849_147

HMO

7 plans, 7 with a $0 Part C premium, average Part C premium $0, average out-of-pocket limit $6,101, 1 without drug coverage.

HMO plans in Larimer County, contract year 2027
Plan2026 starsPart C premiumPart C + DOut-of-pocket limitPart D deductiblePlan ID
DEVOTED CORE 001 CO (HMO)Devoted Health 4.0★ $0 $0 $4,900 $461 H7147_001
Humana Total Complete (HMO)Humana 3.5★ $0 $0 $4,980 $0 H0028_081
Select Health Medicare Veterans (HMO)Select Health, no drug coverage 3.5★ $0 Not published $6,750 No drug coverage H1994_033
DEVOTED GIVEBACK EXTRAS 020 CO (HMO)Devoted Health Not rated $0 $0 $7,000 $700 H7147_020
HealthSpring Preferred (HMO)HealthSpring Not rated $0 $0 $7,150 $400 H2752_006
Humana Total Complete (HMO)Humana Not rated $0 $0 $4,825 $0 H5178_004
Select Health Medicare Essential (HMO)Select Health Not rated $0 $0 $7,100 $700 H1994_047

HMO-POS

6 plans, 5 with a $0 Part C premium, average Part C premium $9.17, average out-of-pocket limit $6,025, 1 without drug coverage.

HMO-POS plans in Larimer County, contract year 2027
Plan2026 starsPart C premiumPart C + DOut-of-pocket limitPart D deductiblePlan ID
AARP Medicare Advantage Essentials from UHC CO-4 (HMO-POS)UnitedHealthcare 4.5★ $0 $0 $5,500 $685 H0609_036
AARP Medicare Advantage from UHC CO-0003 (HMO-POS)UnitedHealthcare 4.5★ $0 $32 $4,300 $595 H0609_034
AARP Medicare Advantage Patriot No Rx CO-MA02 (HMO-POS)UnitedHealthcare, no drug coverage 4.5★ $0 Not published $5,500 No drug coverage H0609_041
Kaiser Permanente Senior Advantage Core North (HMO-POS)Kaiser Permanente 4.5★ $0 $0 $6,600 $0 H0630_020
Kaiser Permanente Senior Advantage Silver North (HMO-POS)Kaiser Permanente 4.5★ $55 $55 $4,400 $0 H0630_021
Anthem Medicare Advantage (HMO-POS)Anthem Blue Cross and Blue Shield 3.5★ $0 $0 $9,850 $325 H4346_012

We do not offer every plan available in your area. Currently we represent 10 organizations which offer 106 products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.

The county

Who lives in Larimer County

The Census Bureau counts about 367,400 Larimer County residents, and 17.4% of them, about 63,800 people, are 65 or older.

Fort Collins, Loveland, Estes Park and the rest of the county share one plan list. The tables below show every plan for 2027, and the changes section lists the plans that end or merge on January 1.

How Lisa helps here. Larimer County clients work with Lisa by phone or video.

Lisa Asmussen, Medicare broker at Headwaters Health and Wealth in Brighton, Colorado

17.4% of Larimer County residents are 65 or older, against 15.6% for Colorado, and 5.6% have no health insurance.

Larimer County compared with Colorado, U.S. Census Bureau ACS 2020 to 2024 5-year estimates
Measure Larimer County Colorado
Population 367,368 5,862,189
Residents aged 65 and over 63,764 914,002
Share aged 65 and over 17.4% 15.6%
Median age 36.8 Not shown
Median household income $93,765 Not shown
Share with no health insurance (all ages) 5.6% 7.7%

Who helps with Medicare in Larimer County, from Loveland to Estes Park?

The Larimer County Office on Aging is the county’s Area Agency on Aging, one of 16 in Colorado, funded with federal and state money for local programs for people 60 and over. Its Aging and Disability Services line is 970-498-7750, and Larimer County Human Services keeps offices in all three of the county’s larger communities: 1501 Blue Spruce Drive in Fort Collins, 200 Peridot Avenue in Loveland, and 1601 Brodie Avenue in Estes Park. The Office on Aging says its ADRC staff help with applications for Long-Term Care Medicaid and the Medicare Savings Program, and its Ombudsman Program gives advice and advocacy about assisted living residences and nursing communities. That second service matters for planning: Medicare does not generally pay for long-term care, and Medigap policies do not cover it either, so families weighing assisted living need a separate plan for that cost.

Free plan counseling comes through the State Health Insurance Assistance Program (SHIP). For 2026 and 2027, the Colorado Division of Insurance lists UCHealth Aspen Club/Senior Services as the SHIP partner for Larimer County, at (970) 495-8558. Besides its Fort Collins office, Aspen Club lists a Loveland location at UCHealth Medical Center of the Rockies, 2500 Rocky Mountain Avenue (970.624.1860).

Lisa works with Larimer County clients by phone or video. The two kinds of help fit together: the Office on Aging handles the application if you qualify for a cost program, and Lisa compares the plans that remain on the Larimer County list.

I live in the Estes Valley. What should I check that people in Fort Collins might not?

The hospital in Estes Park is a different kind of hospital. CMS lists the facility at 555 Prospect Avenue, under the name Estes Park Medical Center, as a critical access hospital, the federal designation for small rural hospitals, rather than an acute care hospital like those in Fort Collins and Loveland. Its own website now presents it as UCHealth Estes Valley Medical Center, with primary care, urgent care and specialty clinics on site.

For an Estes Valley resident, that leads to three practical questions when comparing plans:

  • Is the Estes Park hospital and its clinics in the plan network, under the name the plan uses?
  • If you would be transferred down the canyon for surgery or specialty care, are the Loveland and Fort Collins hospitals you would reach in network too?
  • If you split the year between Estes Park and another state, does the plan cover routine care away from home? Original Medicare with a Medigap policy works with any provider in the country that accepts Medicare; a Medicare Advantage HMO generally covers routine care only from providers in its network.

Why do two health systems matter so much for a Larimer County plan?

Look at the hospital list in the CMS file and a pattern appears. UCHealth runs Poudre Valley Hospital in Fort Collins, Medical Center of the Rockies in Loveland and the Estes Park hospital. Banner runs Banner Fort Collins Medical Center and a Loveland campus of Banner North Colorado Medical Center, the same name as Banner’s Greeley hospital on 16th Street. Fort Collins and Loveland each have a hospital from both systems.

A Medicare Advantage network may include one system, both, or only parts of each, and your own doctors may be tied to one of them. So the plan question in Larimer County is often really a system question: which one do your doctors, your specialists and your preferred hospital belong to? Start there, then compare premiums and out-of-pocket limits. With Original Medicare and a Medigap policy, you can use either system wherever Medicare is accepted, which some people value enough to pay a higher monthly premium.

Local sources: Larimer County: What is an Area Agency on Aging? · Larimer County Office on Aging: I’m Planning Ahead (ADRC and Medicare Savings Program help) · Larimer County: Contact Human Services (office addresses) · Colorado Division of Insurance: Regional SHIP sub-grantee agencies by county, 2026/2027 (PDF) · UCHealth: Aspen Club in northern Colorado (services and locations) · Colorado Division of Insurance: Medicare Supplement Insurance Policies in Colorado, 2025 to 2026 (PDF) · Boulder County Area Agency on Aging: Medicare Counseling (what Medicare does not generally pay for) · CMS Hospital General Information (Provider Data Catalog) · UCHealth: Estes Valley Medical Center

Colorado totals are the sum of all 64 Colorado counties in the same Census release; a statewide median is not computed here. Survey estimates for small towns carry wide margins of error.

Quality

How the 2026 stars fall

CMS rates each contract from 1 to 5 stars. This shows the 2026 rating for each of the 24 Larimer County plans, because CMS’s 2027 ratings are not yet in our data snapshot. New plans and some small contracts are not rated.

  • 4.5★ 8 plans (33%)
  • 4.0★ 4 plans (17%)
  • 3.5★ 7 plans (29%)
  • 3.0★ 1 plan (4%)
  • Not rated 4 plans (17%)

No plan on the Larimer County list has a 5-star 2026 rating.

Hospitals

Hospitals in Larimer County

Medicare-certified hospitals the CMS Hospital General Information file records in Larimer County, with the CMS overall star rating. A rating is not network status: check each hospital against a plan.

5 Medicare-certified hospitals are listed, 2 with a 5 of 5 CMS overall rating; whether each is in a plan’s network is a separate question.

Hospitals from the CMS Hospital General Information file, retrieved 2026-10-14
HospitalAddressEmergency servicesCMS overall rating
Estes Park Medical CenterCritical Access 555 Prospect Avenue, Estes Park, CO 80517 Yes Not available
Banner Fort Collins Medical CenterAcute Care 4700 Lady Moon Drive, Fort Collins, CO 80528 Yes Not available
Poudre Valley HospitalAcute Care 1024 South Lemay Avenue, Fort Collins, CO 80524 Yes 5 of 5
Banner North Colorado Medical Center, Loveland CampusAcute Care 2000 Boise Avenue, Loveland, CO 80538 Yes 3 of 5
Medical Center of the RockiesAcute Care 2500 Rocky Mountain Avenue, Loveland, CO 80538 Yes 5 of 5

Names, addresses, counties and emergency flags are shown as the CMS file records them, except rows marked "Corrected", which we checked against the hospital’s own website (listed under Sources). County pages group hospitals by the county in the CMS record.

Health profile

What is common in Larimer County

Plan choice follows the conditions you actually live with, because they decide which specialists and drugs you need covered.

Larimer County reads at or below the Colorado county average on the headline measures below.

Chronic condition estimates, adults 18 and over: Larimer County and Colorado (CDC PLACES, 2023 estimates)
Measure Larimer County Colorado county average
Diagnosed diabetes 7.3% 8.6%
High blood pressure 25.6% 27.0%
Obesity 23.5% 26.1%
Coronary heart disease 5.1% 5.1%
COPD 5.2% 5.3%
Adults 18 to 64 without health insurance 8.6% 11.1%
Arthritis 22.7% 22.9%
High cholesterol 30.3% 31.5%
Stroke 2.6% 2.7%

CDC PLACES: Local Data for Better Health, County Data, 2025 release (2023 survey estimates), retrieved 2026-10-14. Model-based small-area estimates of crude prevalence among adults 18 and over, not a count of local diagnoses. Crude rates follow the age mix of a place: an older community reads higher on most conditions. Colorado figure: average of the 64 Colorado counties, weighted by adult population.

Special needs

22 Special Needs Plans in Larimer County

An SNP is a Medicare Advantage plan limited to people who meet a condition. They are left out of the counts above because not everyone can join.

D-SNP: 16 plans

For people with both Medicare and Health First Colorado (Colorado Medicaid).

C-SNP: 4 plans

For people with qualifying chronic conditions: Cardiovascular Disorders; Chronic Heart Failure; Diabetes Mellitus.

I-SNP: 2 plans

For people who live in, or need the level of care of, a long-term care facility.

D-SNP

16 plans, with monthly Part C + D premiums from $0 to $18.40. You must meet the plan’s condition to join.

D-SNP plans in Larimer County, contract year 2027
PlanType2026 starsPart C + D premiumOut-of-pocket limitPlan ID
HumanaChoice SNP-DE H7617-067 (PPO D-SNP)Humana PPO D-SNP 4.5★ $0 $9,850 H7617_067
UHC Dual Advantage CO-V1 (PPO D-SNP)UnitedHealthcare PPO D-SNP 4.5★ $18.40 $5,900 H2001_052
UHC Dual Complete CO-Q2 (PPO D-SNP)UnitedHealthcare PPO D-SNP 4.5★ $18.40 $9,850 H2001_053
DEVOTED DUAL FULL 012 CO (HMO D-SNP)Devoted Health HMO D-SNP 4.0★ $0 $9,850 H7147_012
DEVOTED DUAL 007 CO (HMO D-SNP)Devoted Health HMO D-SNP 4.0★ $0 $4,450 H7147_007
DEVOTED DUAL PLUS 003 CO (HMO D-SNP)Devoted Health HMO D-SNP 4.0★ $0 $9,850 H7147_003
UHC Dual Complete CO-Q1 (HMO-POS D-SNP)UnitedHealthcare HMO-POS D-SNP 4.0★ $18.40 $9,850 H0624_001
Humana Dual Select H0028-079 (HMO D-SNP)Humana HMO D-SNP 3.5★ $0 $6,750 H0028_079
Anthem Dual Advantage (HMO D-SNP)Anthem Blue Cross and Blue Shield HMO D-SNP 3.5★ $18.40 $9,850 H4346_014
HumanaChoice SNP-DE H5216-267 (PPO D-SNP)Humana PPO D-SNP 3.5★ $2.10 $9,850 H5216_267
Aetna Medicare Dual Extra Care (HMO D-SNP)Aetna Medicare HMO D-SNP 3.0★ $0 $9,850 H3931_175
Aetna Medicare Full Dual Care (HMO D-SNP)Aetna Medicare HMO D-SNP 3.0★ $0 $9,850 H3931_196
Aetna Medicare Full Dual Extra Care (HMO D-SNP)Aetna Medicare HMO D-SNP Not rated $0 $9,850 H5593_005
HealthSpring TotalCare (HMO D-SNP)HealthSpring HMO D-SNP Not rated $18.40 $9,850 H2752_009
UHC Dual Complete CO-S4 (HMO-POS D-SNP)UnitedHealthcare HMO-POS D-SNP Not rated $18.40 $9,850 H0624_008
HealthSpring TotalCare Plus (HMO D-SNP)HealthSpring HMO D-SNP Not rated $18.40 $9,850 H2752_008

C-SNP

4 plans, with monthly Part C + D premiums from $0 to $0. You must meet the plan’s condition to join.

C-SNP plans in Larimer County, contract year 2027
PlanType2026 starsPart C + D premiumOut-of-pocket limitPlan ID
UHC Complete Care CO-19 (HMO-POS C-SNP)UnitedHealthcare: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus HMO-POS C-SNP 4.5★ $0 $5,900 H0609_072
DEVOTED C-SNP ENHANCED 010 CO (HMO C-SNP)Devoted Health: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus HMO C-SNP 4.0★ $0 $5,400 H7147_010
DEVOTED C-SNP PLUS 013 CO (HMO C-SNP)Devoted Health: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus HMO C-SNP 4.0★ $0 $9,850 H7147_013
DEVOTED C-SNP GIVEBACK EXTRAS 017 CO (HMO C-SNP)Devoted Health: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus HMO C-SNP Not rated $0 $7,000 H7147_017

I-SNP

2 plans, with monthly Part C + D premiums from $0 to $18.40. You must meet the plan’s condition to join.

I-SNP plans in Larimer County, contract year 2027
PlanType2026 starsPart C + D premiumOut-of-pocket limitPlan ID
UHC Nursing Home Plan CO-F001 (PPO I-SNP)UnitedHealthcare PPO I-SNP 4.5★ $0 $9,850 H0710_007
Longevity Health Plan (HMO I-SNP)Longevity Health Plan HMO I-SNP Not rated $18.40 $9,850 H0363_001
The other path

Medigap in Larimer County

Every Advantage plan on this page replaces Original Medicare with a plan network. The other path keeps Original Medicare and adds a Medicare Supplement (Medigap) policy plus a separate Part D plan.

Medigap has no network: any provider that accepts Medicare accepts it, anywhere in the country. Premiums are higher than most Advantage plans, and in exchange your costs are more predictable. The Colorado Division of Insurance publishes Medigap premium charts for every company selling in the state, so you can compare the same plan letter across insurers.

Timing matters. Your 6-month Medigap open enrollment window starts when you are 65 or older and enrolled in Part B. Inside it, an insurer cannot turn you down or charge more for your health. Outside it, in most cases it can. See Medigap rules in Colorado and Medicare Advantage vs Medigap.

When you can change

How and when to enroll

You must have Medicare Part A and Part B to join a Medicare Advantage plan, and live in the plan's service area, here Larimer County.

Initial Enrollment Period

Seven months around your 65th birthday: the 3 months before, your birthday month, and the 3 months after.

Annual Enrollment Period

October 15 to December 7, 2026. Choose or change plans for 2027; coverage starts January 1.

Medicare Advantage Open Enrollment

January 1 to March 31. If you are in a Medicare Advantage plan, you can switch plans or return to Original Medicare once.

Special Enrollment Periods

Moving, losing employer coverage, gaining or losing Health First Colorado, or a plan not renewing can open a window outside the normal calendar.

Ways to enroll: with a licensed agent such as Lisa ((303) 887-8584), directly with a plan, or on Medicare.gov. Free counseling is also available from the Colorado SHIP at 888-696-7213. More detail: Medicare enrollment periods.

Next steps

Before you choose a plan in Larimer County

Plain English

Medicare plan terms on this page

Medicare Advantage (Part C)
A Medicare approved plan from a private company that provides your Part A and Part B benefits in place of Original Medicare. Most include drug coverage and some extras. You keep paying your Part B premium.
$0 Part C premium
The plan charges no monthly premium of its own for medical coverage. You still pay your Part B premium, any drug premium the plan lists, and copays or coinsurance when you use care.
In-network out-of-pocket maximum (MOOP)
The most you pay in a calendar year for covered Part A and Part B services from in-network providers. Once you reach it, the plan pays for covered in-network care for the rest of the year. Premiums and Part D drug costs do not count toward it.
HMO
Health Maintenance Organization. You generally use doctors and hospitals in the plan network, except for emergencies and urgent care, and many HMOs ask for a referral before you see a specialist.
PPO
Preferred Provider Organization. You can use doctors in or out of the network, but out-of-network care usually costs more. Referrals are usually not required.
HMO-POS
An HMO with a point of service option. You mostly use the network, but the plan lets you get some services out of network, usually at a higher cost.
Special Needs Plan (SNP)
A Medicare Advantage plan open only to people with particular needs: both Medicare and Medicaid (Health First Colorado in Colorado), certain chronic conditions, or living in an institution such as a nursing home.
Star rating
A yearly CMS quality score from 1 to 5 stars, based on measures such as preventive care, member experience and customer service. It describes the plan overall; it does not tell you whether your doctors or drugs are covered.
FAQ

Larimer County Medicare questions

How many Medicare Advantage plans are available in Larimer County for 2027?

Larimer County has 24 Medicare Advantage plans for 2027 (Special Needs Plans not included) from 8 organizations. Of those, 22 have a $0 Part C premium, and 19 have a $0 combined monthly premium for Parts C and D (14 of those include drug coverage; 5 have no drug coverage, so no Part D premium). You still pay the Part B premium, which is $202.90 a month in 2026; the 2027 amount is announced around November 2026. Source: CMS 2027 Landscape file.

Does Larimer County have fewer Medicare plans than Denver?

Yes. For 2027 the Larimer County list is shorter than the Denver County list, though the larger carriers sell in both. The numbers section on this page shows the exact count.

Which Larimer County hospitals are rated 5 stars by CMS?

Poudre Valley Hospital in Fort Collins and Medical Center of the Rockies in Loveland both carry a 5 out of 5 overall rating in the CMS Hospital General Information file.

What changes for Medicare plans in Larimer County in 2027?

Counting Medicare Advantage plans with drug coverage, Special Needs Plans included, Larimer County goes from 50 plans in 2026 to 41 in 2027. (The headline count of 24 plans on this page leaves out Special Needs Plans and includes plans without drug coverage, which is why the numbers differ.) The CMS crosswalk shows 11 plans ending with no similar plan in the county, 4 plans ending while the same company offers a plan with the same or a similar name under a new plan ID (members must enroll in it themselves), 3 plans folding into another plan automatically, and 9 new plans. Clear Spring Health has no Medicare Advantage plan with drug coverage in Larimer County for 2027. Your plan’s Annual Notice of Change lists what changes for you on January 1.

What does local data say about health coverage in Larimer County?

Census figures (ACS 2020 to 2024 5-year estimates) show 5.6% of Larimer County residents with no health insurance, against 7.7% for Colorado. People under 65 can shop for coverage on Connect for Health Colorado, the state’s own marketplace; open enrollment for 2027 coverage starts November 1, 2026.

Provenance

Sources and methodology

How the figures are derived

  • Headline plan counts and averages exclude Special Needs Plans, which have their own eligibility rules and are reported separately.
  • "$0 Part C premium" counts plans whose Part C premium is $0. "$0 combined monthly premium for Parts C and D" counts plans whose consolidated Part C + D premium is $0 (for a plan without drug coverage, its Part C premium); our guides and blog use this second count. Out-of-pocket limits are in-network amounts. The average Part D deductible covers plans with drug coverage only.
  • The 2026 to 2027 comparison counts Medicare Advantage plans with drug coverage, Special Needs Plans included, and its "$0" row uses the combined Part C + D premium, so it differs from the headline count.
  • When the CMS crosswalk ends a plan with no successor but the same company files a plan with the same or a similar name under a new plan ID, we say so; members are not moved into the new ID automatically.
  • We do not publish per-plan enrollment: the source does not carry it, and we never estimate plan figures.

Headwaters Health and Wealth is not connected with or endorsed by the United States government or the federal Medicare program. Medicare has neither endorsed nor reviewed this information.

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Content reviewed by Lisa Asmussen, Medicare Broker and Licensed Insurance Agent at Headwaters Health and Wealth in Brighton, Colorado, certified to sell Medicare plans since 2018 (8 years). Last updated .