D-SNP: 18 plans
For people with both Medicare and Health First Colorado (Colorado Medicaid).
Boulder County covers Longmont, Boulder and the Boulder County side of Erie. This guide shows every Medicare Advantage plan CMS lists for the county in 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
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.
Every figure comes from the CMS Landscape file for contract year 2027. Special Needs Plans are counted separately.
Two ways to count "$0 premium" plans: 30 have a $0 Part C premium, and 27 have a $0 combined monthly premium for Parts C and D (22 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 (13 of 33), and 5 plans have no drug coverage.
| Plan type | Plans | $0 Part C premium | Average Part C premium | Average out-of-pocket limit | Without drug coverage |
|---|---|---|---|---|---|
| PPO | 13 | 12 | $0.69 | $7,050 | 3 |
| HMO-POS | 12 | 10 | $20.17 | $5,192 | 1 |
| HMO | 8 | 8 | $0 | $5,713 | 1 |
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.
13 plans, 12 with a $0 Part C premium, average Part C premium $0.69, average out-of-pocket limit $7,050, 3 without drug coverage.
| Plan | 2026 stars | Part C premium | Part C + D | Out-of-pocket limit | Part D deductible | Plan ID |
|---|---|---|---|---|---|---|
| Aetna Medicare Eagle (PPO)Aetna Medicare, no drug coverage | 4.5★ | $0 | Not published | $5,500 | No drug coverage | H5521_378 |
| Aetna Medicare Value Care (PPO)Aetna Medicare | 4.5★ | $0 | $18.40 | $7,150 | $700 | H5521_443 |
| Humana Essentials Plus Giveback (PPO)Humana | 4.5★ | $0 | $0 | $7,850 | $450 | H7617_061 |
| Humana Value Choice (PPO)Humana | 4.5★ | $0 | $0 | $6,900 | $425 | H7617_064 |
| DEVOTED CHOICE 002 CO (PPO)Devoted Health | 4.0★ | $0 | $0 | $6,050 | $650 | H4808_002 |
| 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 | $0 | $6,200 | $425 | H5216_261 |
| 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 |
12 plans, 10 with a $0 Part C premium, average Part C premium $20.17, average out-of-pocket limit $5,192, 1 without drug coverage.
| Plan | 2026 stars | Part C premium | Part C + D | Out-of-pocket limit | Part D deductible | Plan ID |
|---|---|---|---|---|---|---|
| AARP Medicare Advantage Essentials from UHC CO-2 (HMO-POS)UnitedHealthcare | 4.5★ | $0 | $0 | $4,450 | $685 | H0609_012 |
| AARP Medicare Advantage Extras from UHC CO-5 (HMO-POS)UnitedHealthcare | 4.5★ | $0 | $0 | $6,900 | $685 | H0609_048 |
| AARP Medicare Advantage from UHC CO-0001 (HMO-POS)UnitedHealthcare | 4.5★ | $0 | $56 | $3,900 | $595 | H0609_007 |
| AARP Medicare Advantage from UHC CO-21P (HMO-POS)UnitedHealthcare | 4.5★ | $0 | $0 | $4,200 | $685 | H0609_079 |
| AARP Medicare Advantage Patriot No Rx CO-MA01 (HMO-POS)UnitedHealthcare, no drug coverage | 4.5★ | $0 | Not published | $5,500 | No drug coverage | H0609_018 |
| Kaiser Permanente Senior Advantage Bronze DM (HMO-POS)Kaiser Permanente | 4.5★ | $0 | $0 | $6,800 | $0 | H0630_025 |
| Kaiser Permanente Senior Advantage Core DM (HMO-POS)Kaiser Permanente | 4.5★ | $0 | $0 | $4,400 | $0 | H0630_013 |
| Kaiser Permanente Senior Advantage Gold (HMO-POS)Kaiser Permanente | 4.5★ | $194 | $194 | $3,300 | $0 | H0630_016 |
| Kaiser Permanente Senior Advantage Silver DM (HMO-POS)Kaiser Permanente | 4.5★ | $48 | $48 | $3,600 | $0 | H0630_015 |
| Anthem Medicare Advantage (HMO-POS)Anthem Blue Cross and Blue Shield | 3.5★ | $0 | $0 | $9,850 | $325 | H4346_012 |
| AARP Medicare Advantage from UHC CO-0011 (HMO-POS)UnitedHealthcare | Not rated | $0 | $0 | $5,900 | $685 | H6706_001 |
| Perennial Advantage Freedom (HMO-POS)Perennial Advantage | Not rated | $0 | $0 | $3,500 | $0 | H3419_003 |
8 plans, 8 with a $0 Part C premium, average Part C premium $0, average out-of-pocket limit $5,713, 1 without drug coverage.
| Plan | 2026 stars | Part C premium | Part C + D | Out-of-pocket limit | Part D deductible | Plan ID |
|---|---|---|---|---|---|---|
| DEVOTED CORE 004 CO (HMO)Devoted Health | 4.0★ | $0 | $0 | $4,450 | $465 | H7147_004 |
| Humana Essentials Plus Giveback (HMO)Humana | 3.5★ | $0 | $0 | $6,500 | $50 | H0028_063 |
| Humana Total Complete (HMO)Humana | 3.5★ | $0 | $0 | $4,750 | $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 019 CO (HMO)Devoted Health | Not rated | $0 | $0 | $6,750 | $700 | H7147_019 |
| HealthSpring Preferred (HMO)HealthSpring | Not rated | $0 | $0 | $5,150 | $500 | H2752_005 |
| Humana Total Complete (HMO)Humana | Not rated | $0 | $0 | $4,650 | $0 | H5178_003 |
| Select Health Medicare Essential (HMO)Select Health | Not rated | $0 | $0 | $6,700 | $700 | H1994_045 |
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 Census Bureau counts about 329,000 Boulder County residents, 16.4% of them 65 or older, with a median household income of about $104,000 and 4.4% without health insurance.
Five Boulder County hospitals appear in the CMS file, in Boulder, Longmont, Lafayette and Louisville. The tables below group the county’s plans by type, with the premium, out-of-pocket limit and 2026 star rating for each.
How Lisa helps here. Boulder County clients work with Lisa by phone or video, or at the Brighton office.
16.4% of Boulder County residents are 65 or older, against 15.6% for Colorado, and 4.4% have no health insurance.
| Measure | Boulder County | Colorado |
|---|---|---|
| Population | 328,961 | 5,862,189 |
| Residents aged 65 and over | 53,942 | 914,002 |
| Share aged 65 and over | 16.4% | 15.6% |
| Median age | 37.7 | Not shown |
| Median household income | $103,994 | Not shown |
| Share with no health insurance (all ages) | 4.4% | 7.7% |
Yes. In Boulder County, the county’s own Area Agency on Aging delivers the State Health Insurance Assistance Program (SHIP): the Colorado Division of Insurance lists it as the Boulder County SHIP partner for 2026 and 2027. Its Medicare counseling team gives free, unbiased help with Part D, Medicare Advantage, Medigap, appeals, billing and claims, and coverage for people with both Medicare and Medicaid.
How to reach them: call 303-441-1546 (English and Spanish), email medicare@bouldercounty.gov, or request an appointment online. Counseling is by phone, email or appointment, and the classes are held live on Zoom: Medicare Basics sessions run through December 2026, and this fall’s open enrollment classes covered Medicare changes for 2027, how to read your Annual Notice of Change (ANOC), Extra Help, and how to avoid enrollment scams. For anyone who prefers to learn at their own pace, the county also posts a recorded three-part Medicare series, plus short Senior Medicare Patrol videos on reading your Medicare Summary Notice and spotting fraud.
Lisa is a licensed broker rather than a SHIP counselor, and she works with Boulder County clients by phone or video. A county class gives you the neutral overview; Lisa then compares the actual plans on the Boulder County list against your doctors and prescriptions and helps you enroll.
Boulder County runs Mountain Aging Services for older adults, people with disabilities, caregivers and veterans in the mountain communities. Resource specialists meet clients, learn their needs and build an action plan with them. There is a Northern Mountain Resource Specialist (720-766-8844) and a Southern Mountain Resource Specialist (720-616-9109), and the general aging line is 303-441-1617.
The county is candid about the limits: it says it generally cannot start a service where no provider exists, and that services depend on funding, staff and volunteers. That same reality shapes insurance choices in the mountains:
Boulder County’s Medicare page warns that people who recently lost Medicaid, or will soon, may be able to sign up for Medicare or change their Medicare coverage, but only for a limited time. Do not wait for the window to close.
For Health First Colorado questions, renewal notices and address updates, Boulder County Human Services is at 303-441-1000, with offices at 515 Coffman Street in Longmont, 3400 North Broadway in Boulder, and 1755 South Public Road in Lafayette. The same office can answer questions about the Medicare Savings Programs, which help pay Medicare premiums and, at the lowest income tier, deductibles and coinsurance. You can also manage your case on Colorado PEAK, where the county suggests opening your Mailbox and choosing how you want renewal notices delivered, so a letter that affects your coverage does not get lost.
The county also reminds residents that Connect for Health Colorado is not for people with Medicare, and that Medicare does not generally pay for long-term care, routine dental or eye care, dentures or hearing aids. When your Medicaid coverage changes, those gaps can appear overnight. Lisa can line up a Medicare plan that starts on time and, where it makes sense, separate dental, vision or hearing coverage.
Local sources: Colorado Division of Insurance: Regional SHIP sub-grantee agencies by county, 2026/2027 (PDF) · Boulder County Area Agency on Aging: Medicare Counseling · Boulder County Area Agency on Aging: Mountain Aging Services · Boulder County Area Agency on Aging: Medicare Savings Program · Colorado Department of Health Care Policy and Financing: Medicare Savings Programs · CMS Hospital General Information (Provider Data Catalog)
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.
Medicare-certified hospitals the CMS Hospital General Information file records in Boulder 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, 1 with a 5 of 5 CMS overall rating; whether each is in a plan’s network is a separate question.
| Hospital | Address | Emergency services | CMS overall rating |
|---|---|---|---|
| Boulder Community HealthAcute Care | 4747 Arapahoe Avenue, Boulder, CO 80304 | Yes | 4 of 5 |
| Good Samaritan Medical Center LLCAcute Care | 200 Exempla Circle, Lafayette, CO 80026 | Yes | 4 of 5 |
| Longmont United HospitalAcute Care | 1950 Mountain View Avenue, Longmont, CO 80501 | Yes | 3 of 5 |
| Longs Peak HospitalAcute Care | 1750 East Ken Pratt Boulevard, Longmont, CO 80504 | Yes | 5 of 5 |
| AdventHealth AvistaAcute CareCorrected: The CMS file marks emergency services as "No"; AdventHealth publishes a 24/7 emergency department at this hospital. | 100 Health Park Drive, Louisville, CO 80027 | Yes | 4 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.
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 Boulder County list goes from 62 plans in 2026 to 55 in 2027, and the average in-network out-of-pocket limit moves from $6,448 to $7,154.
| Measure | 2026 | 2027 |
|---|---|---|
| Plans with drug coverage (SNPs included) | 62 | 55 |
| With a $0 combined monthly premium for Parts C and D | 37 | 39 |
| Average in-network out-of-pocket limit | $6,448 | $7,154 |
| Average Part D deductible | $407.82 | $509.87 |
| 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 33, which leaves out Special Needs Plans and includes plans without drug coverage. Clear Spring Health has no Medicare Advantage plan with drug coverage in Boulder County for 2027.
Of the 17 plans below, 10 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.
| 2026 plan | Carrier | CMS crosswalk status | Members 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_005. 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_045. 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. |
Kaiser Permanente Senior Advantage Choice DM (PPO) H3138-001 | 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) 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) |
Humana Full Access H5216-333 (PPO) H5216-333 | Humana | Terminated/Non-renewed Contract | Ends with no similar plan in this county. Not moved automatically: choose a new plan. |
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) |
Aetna Medicare Signature (PPO) H5521-250 | Aetna Medicare | Renewal Plan with SAR | Ends with no similar plan in this county. Not moved automatically: choose a new plan. |
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 Boulder 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 Chronic Care (HMO C-SNP), Aetna Medicare Full Dual Extra Care (HMO D-SNP), DEVOTED C-SNP GIVEBACK EXTRAS 016 CO (HMO C-SNP), DEVOTED GIVEBACK EXTRAS 019 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.
CMS rates each contract from 1 to 5 stars. This shows the 2026 rating for each of the 33 Boulder County plans, because CMS’s 2027 ratings are not yet in our data snapshot. New plans and some small contracts are not rated.
No plan on the Boulder County list has a 5-star 2026 rating.
Plan choice follows the conditions you actually live with, because they decide which specialists and drugs you need covered.
Boulder County reads at or below the Colorado county average on the headline measures below.
| Measure | Boulder County | Colorado county average |
|---|---|---|
| Diagnosed diabetes | 7.1% | 8.6% |
| High blood pressure | 21.9% | 27.0% |
| Obesity | 16.7% | 26.1% |
| Coronary heart disease | 4.8% | 5.1% |
| COPD | 4.7% | 5.3% |
| Adults 18 to 64 without health insurance | 7.8% | 11.1% |
| Arthritis | 20.7% | 22.9% |
| High cholesterol | 29.9% | 31.5% |
| Stroke | 2.5% | 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.
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.
For people with both Medicare and Health First Colorado (Colorado Medicaid).
For people with qualifying chronic conditions: Cardiovascular Disorders; Chronic Heart Failure; Diabetes Mellitus.
For people who live in, or need the level of care of, a long-term care facility.
18 plans, with monthly Part C + D premiums from $0 to $18.40. You must meet the plan’s condition to join.
| Plan | Type | 2026 stars | Part C + D premium | Out-of-pocket limit | Plan ID |
|---|---|---|---|---|---|
| HumanaChoice SNP-DE H7617-067 (PPO D-SNP)Humana | PPO D-SNP | 4.5★ | $0 | $9,850 | H7617_067 |
| Kaiser Permanente Dual Essential (HMO D-SNP)Kaiser Permanente | HMO D-SNP | 4.5★ | $0 | $5,900 | H0630_014 |
| Kaiser Permanente Dual Complete (HMO D-SNP)Kaiser Permanente | HMO D-SNP | 4.5★ | $0 | $9,850 | H0630_027 |
| 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 PLUS 003 CO (HMO D-SNP)Devoted Health | HMO D-SNP | 4.0★ | $0 | $9,850 | H7147_003 |
| DEVOTED DUAL 007 CO (HMO D-SNP)Devoted Health | HMO D-SNP | 4.0★ | $0 | $4,450 | H7147_007 |
| DEVOTED DUAL FULL 012 CO (HMO D-SNP)Devoted Health | HMO D-SNP | 4.0★ | $0 | $9,850 | H7147_012 |
| 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 H0028-078 (HMO D-SNP)Humana | HMO D-SNP | 3.5★ | $0 | $6,500 | H0028_078 |
| 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 Plus (HMO D-SNP)HealthSpring | HMO D-SNP | Not rated | $18.40 | $9,850 | H2752_008 |
| 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 |
5 plans, with monthly Part C + D premiums from $0 to $0. You must meet the plan’s condition to join.
| Plan | Type | 2026 stars | Part C + D premium | Out-of-pocket limit | Plan ID |
|---|---|---|---|---|---|
| UHC Complete Care CO-1P (HMO-POS C-SNP)UnitedHealthcare: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus | HMO-POS C-SNP | 4.5★ | $0 | $4,100 | H0609_047 |
| DEVOTED C-SNP ENHANCED 009 CO (HMO C-SNP)Devoted Health: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus | HMO C-SNP | 4.0★ | $0 | $4,700 | H7147_009 |
| 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 |
| Aetna Medicare Chronic Care (HMO C-SNP)Aetna Medicare: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus | HMO C-SNP | Not rated | $0 | $6,750 | H5593_004 |
| DEVOTED C-SNP GIVEBACK EXTRAS 016 CO (HMO C-SNP)Devoted Health: Cardiovascular Disorders, Chronic Heart Failure, Diabetes Mellitus | HMO C-SNP | Not rated | $0 | $6,750 | H7147_016 |
4 plans, with monthly Part C + D premiums from $0 to $18.40. You must meet the plan’s condition to join.
| Plan | Type | 2026 stars | Part C + D premium | Out-of-pocket limit | Plan ID |
|---|---|---|---|---|---|
| UHC Nursing Home Plan CO-F001 (PPO I-SNP)UnitedHealthcare | PPO I-SNP | 4.5★ | $0 | $9,850 | H0710_007 |
| Perennial Advantage Premier (HMO-POS I-SNP)Perennial Advantage | HMO-POS I-SNP | Not rated | $0 | $3,300 | H3419_004 |
| Perennial Advantage Strive (HMO I-SNP)Perennial Advantage | HMO I-SNP | Not rated | $14.60 | $9,850 | H3419_001 |
| Longevity Health Plan (HMO I-SNP)Longevity Health Plan | HMO I-SNP | Not rated | $18.40 | $9,850 | H0363_001 |
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.
You must have Medicare Part A and Part B to join a Medicare Advantage plan, and live in the plan's service area, here Boulder County.
Seven months around your 65th birthday: the 3 months before, your birthday month, and the 3 months after.
October 15 to December 7, 2026. Choose or change plans for 2027; coverage starts January 1.
January 1 to March 31. If you are in a Medicare Advantage plan, you can switch plans or return to Original Medicare once.
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.
Boulder County has 33 Medicare Advantage plans for 2027 (Special Needs Plans not included) from 9 organizations. Of those, 30 have a $0 Part C premium, and 27 have a $0 combined monthly premium for Parts C and D (22 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.
Only to Erie addresses in Boulder County. Most Erie residents live in Weld County, which has its own, shorter plan list.
In the CMS Hospital General Information file, Longs Peak Hospital in Longmont carries a 5 out of 5 overall rating. Boulder Community Health, Good Samaritan Medical Center and AdventHealth Avista are rated 4, and Longmont United Hospital 3.
Counting Medicare Advantage plans with drug coverage, Special Needs Plans included, Boulder County goes from 62 plans in 2026 to 55 in 2027. (The headline count of 33 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 10 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 10 new plans. Clear Spring Health has no Medicare Advantage plan with drug coverage in Boulder County for 2027. Your plan’s Annual Notice of Change lists what changes for you on January 1.
Census figures (ACS 2020 to 2024 5-year estimates) show 4.4% of Boulder 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.
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 .