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MA Enrollment Explorer / Arizona / Cochise County

Medicare Advantage in Cochise County, Arizona

18,425 people in Cochise County, Arizona were enrolled in Medicare Advantage in October 2026, 48.2% of 38,222 eligible beneficiaries (−0.2 pts since October 2025). Centene Corporation is the largest parent organization with 35% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,559 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 3,666 members here are in plans that terminate or leave the county. MA plans offered go from 14 to 15.

48.2%MA penetration, October 2026
18,425MA enrollees
35%leading parent's share
4.7%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Arizona

Parent organizations in Cochise County

Parent organizationMembersChange since October 2025Share
Centene Corporation6,389−6234.9%
UnitedHealth Group, Inc.5,631−8730.8%
Humana Inc.3,085+1,63416.9%
Banner Health1,312−667.2%
Devoted Health, Inc.1,306+7527.1%
CVS Health Corporation244−2,0901.3%
Gold Kidney Health Plan162+990.9%
Elevance Health, Inc.76+60.4%
Blue Cross Blue Shield of Michigan Mutual Ins. Co.39+20.2%
Health Care Service Corporation27+110.1%
California Physicians' Service150under 0.1%

CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.

Value-based care alongside MA

In PY 2024, 625 beneficiaries in Cochise County were assigned to 110 Medicare Shared Savings Program ACOs, 4.7% of assignable Original Medicare beneficiaries. Together, roughly 51% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.