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Top MA Enrollment Contracts in Buffalo-Cheektowaga, NY (Jul 2026)

This page summarizes county-level Medicare Advantage enrollment by contract in this metro area.

MSA rank: 39 of top 50 by MA enrollment. CBSA: 15380. MSA total enrollment: 197,102.

Data source: SCC Enrollment MA Alternative File (2026-07).

Top 10 Contracts

Rank	Contract ID	Organization Name	Plan Type	Enrolled	Counties	MSA Share
1	H3351	EXCELLUS HEALTH PLAN, INC.	HMO/HMOPOS	42,094	2	21.4%
2	H3362	INDEPENDENT HEALTH ASSOCIATION, INC.	HMO/HMOPOS	37,265	2	18.9%
3	H5521	AETNA LIFE INSURANCE COMPANY	Local PPO	20,052	2	10.2%
4	H3384	Highmark Western and Northeastern New York Inc.	HMO/HMOPOS	17,294	2	8.8%
5	H3379	UNITEDHEALTHCARE OF NEW YORK, INC.	HMO/HMOPOS	16,037	2	8.1%
6	H3387	UNITEDHEALTHCARE OF NEW YORK, INC.	HMO/HMOPOS	14,607	2	7.4%
7	H2001	SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC.	Local PPO	12,321	2	6.3%
8	H5526	Highmark Western and Northeastern New York Inc.	Local PPO	7,590	2	3.9%
9	H3312	AETNA HEALTH INC. (NY)	HMO/HMOPOS	4,918	2	2.5%
10	H5970	HUMANA INSURANCE COMPANY OF NEW YORK	Local PPO	4,544	2	2.3%

Method note: Enrollment is based on legal state/county of residence for payment purposes and may include out-of-service-area beneficiaries.