Puerto Rico Medicare Advantage Market Update — Q2 2026

Executive Summary

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Puerto Rico’s Medicare Advantage market remained highly concentrated during the second quarter of 2026. Total enrollment reached 679,192 beneficiaries, with MCS holding 52.5% of the market and the two largest carriers representing 81.6% of total enrollment.
 

Key Findings

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• Total Medicare Advantage enrollment reached 679,192 beneficiaries.

• MCS holds 52.5% of the market as of June 2026.

• The top two carriers (MCS and MMM) represent 81.6% of total enrollment.

• Year-over-year enrollment growth was 10.3% compared to June 2026.