Plans That Adopt Supplemental Benefits See Modest Member Experience Boost

Medicare Advantage plans that adopt supplemental benefits can improve their plan experience ratings, according to new research published June 5 in JAMA Network Open. Researchers found that plans that adopted both expanded primarily health-related benefits (PHRB) and Special Supplemental Benefits for the Chronically Ill (SSBCI) in 2021 increased their mean plan rating, measured via the Consumer Assessments of Healthcare Providers and Systems (CAHPS) survey, by 0.22 points. (Members rate plans between a low of 0 and a high of 10 points.) The study is among the first research available on any link between supplemental benefit adoption and plan quality ratings.

© 2025 MMIT
Carina Belles

Carina Belles

Carina has been covering public-sector health care since 2018. As a data reporter for Radar on Medicare Advantage, she creates infographics and data stories on issues impacting Medicare, Medicaid and Part D. She also develops AIS Health Daily, a free daily newsletter that showcases AIS’s strong reporting across our four publications and parent company Norstella’s suite of market access and data solutions. Prior to joining the editorial team, she managed Medicare and Medicaid data for the Directory of Health Plans, AIS’s industry-standard health coverage database. She graduated from Ohio University with a B.S. in Journalism.

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