2027 open enrollment. 3.15M must pick a new plan.

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Vlada / Medicare Advantage / New Mexico / Santa Fe County

Medicare Advantage plan exits 2027 in Santa Fe County, NM

4,868 of the 14,991 Medicare Advantage members in Santa Fe County (32.5%) are in a plan that is not sold in the county for 2027: 12 of the 43 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. New Mexico: 30.1%; the nation: 10.6%.

Period: plan year 2027 against September 2026 members · Updated 2026-10-20 · Next: CMS January 2027 enrollment (February 2027): where the members landed

members, Sept 2026
14,991
members, Sept 2026
must pick for 2027
4,868
must pick for 2027
share of members
32.5%
share of members
plans end
12 of 43
plans end

Medicare Advantage members in Santa Fe County, 2015 to 2026

MA enrollment in September each year, with MA penetration (members over Medicare eligibles) at the top of each bar, from the CMS state-county penetration file. Navy: the last two years. 35 plans are listed for the county for 2027 against 46 for 2026.

05k10k15k19k30%201530%31%201733%34%201936%38%202141%42%202342%42%202542%

The plans that end for 2027

Every plan sold in Santa Fe County in September 2026 with members whose plan is not sold there for 2027: how it went (terminated, or its service area reduced so it continues elsewhere), the members the same company offers a new or renumbered plan of the same type, and the members whose company sells nothing in the county next year.

PlanCompanyTypeMembersTerminatedService area reducedOffered a new or renumbered planCompany gone
Presbyterian Senior Care Plan 2 With Rx (HMO) H3204-001Presbyterian Healthcare ServicesRegular HMO1,5181,518000
Blue Cross Medicare Advantage Select (HMO) H3251-002Health Care Service CorporationRegular HMO1,4191,419000
Christus Health Medicare Plus (HMO) H1189-002CHRISTUS HealthRegular HMO56956900569
Blue Cross Medicare Advantage Dental Premier (PPO) H1666-016Health Care Service CorporationRegular PPO332332000
Blue Cross Medicare Advantage Choice Premier (PPO) H1666-012Health Care Service CorporationRegular PPO332332000
Blue Cross Medicare Advantage Classic (PPO) H8634-010Health Care Service CorporationRegular PPO227227000
Blue Cross Ma Dual Care Plus Preferred (PPO D-SNP) H8634-009Health Care Service CorporationD-SNP PPO201201000
Blue Cross Medicare Advantage Health Choice (PPO) H1666-014Health Care Service CorporationRegular PPO7474000
Presbyterian Senior Care Plan 3 With Rx (HMO) H3204-007Presbyterian Healthcare ServicesRegular HMO7373000
Presbyterian Senior Care Plan 1 (HMO) H3204-008Presbyterian Healthcare ServicesRegular HMO7373000
Blue Cross Medicare Advantage Optimum (PPO) H1666-020Health Care Service CorporationRegular PPO2929000
Christus Health Medicare Guardian (HMO) H1189-007CHRISTUS HealthRegular HMO21210021
12 plans4,8684,86800590

Download this table (CSV, CC BY 4.0) · cells under 11 members are suppressed by CMS and count as zero, so every count is a floor.

By company in Santa Fe County

CompanyMembers, Sept 2026PlansPlans endingMust pickShare of own membersOffered a new or renumbered planCompany gone
Health Care Service Corporation2,913972,61489.7%00
Presbyterian Healthcare Services2,505531,66466.4%00
CHRISTUS Health59022590100.0%0590
UnitedHealth Group, Inc.4,55810000.0%00
Humana Inc.4,27913000.0%00
Devoted Health, Inc.773000.0%00
Molina Healthcare, Inc.691000.0%00

Santa Fe County against New Mexico and the nation

MeasureCountyNew MexicoUnited States
Must pick for 2027, share of members32.5%30.1%10.6%
Must pick for 20263.1%10.1%
Must pick for 2025, members1,759 of 14,761
Must pick for 2026, members454 of 14,761
Must pick for 2027, members4,868 of 14,991

State and national figures: the New Mexico hub and the national report.

Star Ratings 2027 in Santa Fe County

Measure20272026Change
Members in contracts rated 4+ stars64.9%31.7%+33.2 pts
Member-weighted average star3.793.51+0.28
Rated contracts with members here1920

Members by star, 2027: 4.5: 4,956 · 4.0: 6,016 · 3.0: 5,760 · 2.5: 180; 2,290 in unrated contracts. Each contract's 2027 overall star (CMS, released 2026-10-08) weighted by its 2026-09 members in the county, individual and group; 2026 by 2025-09 members.

Sources

  • CMS Medicare Advantage/Part D Landscape, plan year 2027: landscape_cy2027-landscape-202609-1.zip (CMS, September 2026); CMS plan crosswalk CY2027.
  • CMS monthly enrollment by contract, plan and county, 2026-09 (and the two Septembers before, for the series).
  • CMS MA state-county penetration file, September of each year (eligibles, enrollment, penetration).
  • CMS Star Ratings 2027, released 2026-10-08. Page object written 2026-10-20.

Receipts: athena(table=medicare_semantic.exits_cells_county_2027_v1, block=plans) 042eb472aa7d…; athena(table=medicare_semantic.exits_cells_county_2025_v1, medicare_semantic.exits_cells_county_2026_v1, medicare_semantic.exits_cells_county_2027_v1, block=series) ee9fd56a8632…; athena(table=medicare_semantic.ma_spine_county_market_v20261012b, block=market) e6c1b5ce62c0…; athena(table=medicare_semantic.ma_spine_contract_stars_v20261012b, weights=medicare_semantic.ma_spine_enroll_plan_county_v20261012a, block=stars) c39711c388e0…. Suppressed cells count as zero in every count.

Cite: Vlada Health (2026). Medicare Advantage plan exits 2027 in Santa Fe County, NM. https://www.vladahealth.com/medicare-advantage/nm/santa-fe. Data: CC BY 4.0.

Method

  • Population: members of individual Medicare Advantage plans (H and R contracts, plans 001 to 799, special needs plans included; employer group, Cost, MMP and PACE excluded) in the county in September 2026.
  • Must pick: the CMS crosswalk names no successor plan sold in the county for 2027; members CMS moves to a successor in the county are not counted.
  • Terminated: the plan is gone from every county. Service area reduced: the plan continues elsewhere but not here. Offered a new or renumbered plan: the same company sells, in this county, the same name under a new number or a new plan of the same HMO or PPO and special needs type. Company gone: no plan of any type from that company in the county.
  • Stars: each contract's overall star weighted by its September members in the county; unrated contracts counted apart, never as zero stars. Penetration: the CMS file's own eligibles and MA enrollment.
  • Suppression: CMS hides cells under 11 members; they count as zero, so every count is a floor and every share is not.

The full method and the national tables: How we counted, and how to check it.

Questions

How many Medicare Advantage members in Santa Fe County must pick a new plan for 2027?
4,868 of 14,991 members (32.5%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. New Mexico as a whole: 30.1%; the nation: 10.6%.
Which plan in Santa Fe County ends with the most members?
Presbyterian Senior Care Plan 2 With Rx (HMO) (H3204-001, Presbyterian Healthcare Services): 1,518 members in September 2026, terminated.
Which company ended the most plans in Santa Fe County for 2027?
Health Care Service Corporation: 2,614 of its 2,913 members in the county (89.7%), 7 of its 9 plans.
What share of Santa Fe County's Medicare eligibles are in Medicare Advantage?
41.5% in September 2026: 19,384 of 46,725 eligibles, from the CMS state-county penetration file.
How are Santa Fe County's members rated for 2027?
64.9% of members are in contracts rated 4 stars or more for 2027 (31.7% the year before); the member-weighted average star is 3.79 over 19 rated contracts.
How does 2027 compare with 2026 in Santa Fe County?
454 members (3.1%) had to pick a new plan for 2026; for 2027 it is 4,868 (32.5%), a change of +4,414 members.

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