Understanding Trends in Medicare Spending, 2007-2014

Area of Science:

• Health Economics
• Gerontology
• Public Health Policy

Background:

• Medicare spending growth is a significant concern for healthcare sustainability.
• Understanding drivers of per-beneficiary spending is crucial for policy development.

Purpose of the Study:

• To analyze the sources of per-beneficiary Medicare spending growth from 2007 to 2014.
• To investigate the influence of demographics, coverage, and chronic conditions on spending.

Main Methods:

• Utilized individual-level Medicare Part A and B fee-for-service enrollment and spending data (2007-2014).
• Employed Oaxaca-Blinder decomposition to differentiate between population composition and spending level changes.
• Analyzed a 5% sample of Medicare beneficiaries aged 65 and above.

Main Results:

• Mean payment-adjusted per-beneficiary Medicare spending declined by $180 between 2007-2010 and 2011-2014.
• This reduction was primarily driven by lower spending levels per beneficiary, particularly for those with chronic conditions.
• Increased prevalence of some chronic diseases partially offset the overall spending decline.

Conclusions:

• Declining spending levels among Medicare beneficiaries with chronic conditions indicate potential moderation of spending growth.
• Changing patterns in healthcare utilization may be contributing to reduced per-beneficiary spending.
• Further research is needed to fully attribute spending declines to specific beneficiary characteristics or conditions.