Is My Plan Ending?

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Plans ending in Colorado in 2027

In Colorado, 643 Medicare Advantage plan listings from 2026 are not offered in 2027, and 62 more are probably being replaced by a plan with a new number. A listing is one plan in one county.

Not offeredin 2027
643

of 1,812plan listings

Probably beingreplaced
62

same name,new number

People in plansending here
~19,000

rounded,Sept. 2026

People who maybe moved
~16,000

same contract hasother plans here

Ending here: no plan is left under the same contract in the county; members need to pick a new plan, or they will have Original Medicare. May be moved: the same contract still has other plans in the county, and companies often move members into one of them automatically. CMS's plan crosswalk, expected in October, will say which. Everyone in these plans keeps Medicare.

Counties with the most people in plans not offered

  1. Mesa County: about 4,300 people (~600 in plans ending here, ~3,700 who may be moved)
  2. Larimer County: about 2,500 people (~1,500 in plans ending here, ~1,000 who may be moved)
  3. Weld County: about 2,500 people (~1,000 in plans ending here, ~1,500 who may be moved)
  4. El Paso County: about 1,900 people (~770 in plans ending here, ~1,100 who may be moved)
  5. Denver County: about 1,500 people (~650 in plans ending here, ~870 who may be moved)

By company

CompanyNot offeredProbably replacedPeople in plans ending herePeople who may be moved
CVS Health Corporation2090~5,800~6,100
Group 100148000
Health Care Service Corporation540~2,6000
Humana2090~3,300~4,000
Intermountain Health Care5470~2,900
Kaiser Foundation Health Plan170~1,3000
UnitedHealth Group5255~6,000~2,600

By county

CountyPlans in 2026Not offeredProbably replacedPeople in plans ending herePeople who may be moved
Adams County71161~580~310
Alamosa County14101~8000
Arapahoe County68161~830~440
Archuleta County18121~410~70
Baca County20100
Bent County2241040 or fewer
Boulder County69172~320~940
Broomfield County67162~110~40
Chaffee County2071~6800
Cheyenne County40100
Clear Creek County58292~51070 or fewer
Conejos County29131~320~20
Costilla County2341040 or fewer
Crowley County34151~2040 or fewer
Custer County33151~130~60
Delta County31180~250~800
Denver County71171~650~870
Dolores County1141040 or fewer
Douglas County70231~840~640
Eagle County421~7400
El Paso County56171~770~1,100
Elbert County53251~1,00070 or fewer
Fremont County52141~70~110
Garfield County2100~400
Gilpin County48212~14070 or fewer
Grand County35141~220~40
Gunnison County17500~70
Hinsdale County1741040 or fewer
Huerfano County33151~150~110
Jackson County3115190 or fewer40 or fewer
Jefferson County72171~490~880
Kiowa County40100
Kit Carson County40100
La Plata County20101~360~320
Lake County1461~90~30
Larimer County57182~1,500~1,000
Las Animas County25121~1,2000
Lincoln County31131~4040 or fewer
Logan County1451~200~40
Mesa County33150~600~3,700
Mineral County1741040 or fewer
Moffat County20100
Montezuma County951~870~90
Montrose County1980~100~1,100
Morgan County28171~800~40
Otero County12310~80
Ouray County17500~60
Park County46192~200~50
Phillips County621~600
Pitkin County8100~30
Prowers County40100
Pueblo County57181~180~560
Rio Blanco County11500~80
Rio Grande County971~7900
Routt County40100
Saguache County26101~110~10
San Juan County1741040 or fewer
San Miguel County11500~30
Sedgwick County40100
Summit County1251~440~10
Teller County56221~170~30
Washington County34161~8030 or fewer
Weld County60202~1,000~1,500
Yuma County621~700

Drug plans (Part D) in Colorado

Stand-alone drug plans are offered across the whole state. 3 are not offered in Colorado in 2027.

PlanCompanyWhat's happeningPeople in plan (Sept 2026)
SilverScript Choice (PDP) · S5601-054-0Aetna MedicareNot offered: left this county~14,000
HealthSpring Assurance Rx (PDP) · S5617-133-0HealthSpringNot offered: company ending this contract~4,100
HealthSpring Extra Rx (PDP) · S5617-377-0HealthSpringNot offered: company ending this contract~8,100

These numbers come from CMS's plan files. If you're in one of these plans, confirm with your Annual Notice of Change or the letter from your plan.

Source: CMS CY2027 Landscape, data as of September 22, 2026 (release 202609.1). Enrollment: CMS Monthly Enrollment by Contract/Plan/State/County, September 2026. "Probably being replaced" is our own match by company and plan name; see how we get our numbers.