Physician Network Breadth and Plan Quality Ratings in Medicare Advantage

Area of Science:

• Health Services Research
• Health Policy
• Medicare Advantage

Background:

• Narrow network plans are an emerging strategy in Medicare Advantage.
• Understanding their prevalence and characteristics is crucial for beneficiaries and policymakers.

Purpose of the Study:

• To examine the prevalence of narrow networks in Medicare Advantage.
• To identify county-level factors associated with narrow network plans.
• To assess the relationship between narrow networks and Medicare Advantage Star Ratings.

Main Methods:

• Cross-sectional analysis of Medicare Advantage plan data.
• Geographic analysis of narrow network prevalence by county type.
• Statistical examination of network design and Star Ratings.

Main Results:

• Narrow networks are present in a significant portion of Medicare Advantage plans.
• Specific county types exhibit higher concentrations of narrow network plans.
• Associations were found between narrow network characteristics and plan Star Ratings.

Conclusions:

• Narrow networks are a notable feature of the Medicare Advantage landscape.
• Geographic and enrollment patterns of narrow networks warrant further investigation.
• The link between network design and quality indicators like Star Ratings requires continued study.