MA payer · 2 active contracts

SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC.

2,251,512

Total MA enrolled

2,868

Counties served

States served

Largest state

Top states by enrollment

1TX325,607
2CA126,663
3SC125,742
4WA107,564
5IL100,403
6MO99,494
7GA98,376
8NY87,754
9OH78,543
10MN78,381
11FL76,643
12CT65,489
13AR65,308
14WI61,930
15AZ59,378

Top counties

by single-county enrollment

Cook, IL
Local PPO · contract H2001
35,688
Harris, TX
Local PPO · contract H2001
32,255
Maricopa, AZ
Local PPO · contract H2001
29,922
King, WA
Local PPO · contract H2001
28,197
Travis, TX
Local PPO · contract H2001
19,342
Hartford, CT
Local PPO · contract H2001
19,142
Hennepin, MN
Local PPO · contract H2001
18,471
Bexar, TX
Local PPO · contract H2001
17,494
New Haven, CT
Local PPO · contract H2001
16,446
Tarrant, TX
Local PPO · contract H2001
16,266
Dallas, TX
Local PPO · contract H2001
16,100
Los Angeles, CA
Local PPO · contract H2001
14,554
Milwaukee, WI
Local PPO · contract H2001
14,506
Clark, NV
Local PPO · contract H2001
14,207
Fairfield, CT
Local PPO · contract H2001
13,818

Plan-type mix (enrollment)

Local PPO

2,244,446 enrolled

HMO/HMOPOS

7,066 enrolled

Source: CMS Monthly MA Enrollment by State/County/Contract (May 2026, abridged). Enrollment counts ≤ 10 are excluded from the source file (HIPAA suppression).