Medicare advantage beneficiary enrollment decisions following new complex conditions

JAMA Health Forum

About the Study:

 In this cohort study of more than 1 million Medicare Advantage beneficiaries, developing a new complex medical condition was associated with higher disenrollment, particularly to traditional Medicare. Disenrollment increased with the number of new conditions and was higher among beneficiaries living in states with Medigap guaranteed issue and community rating protections.

Corresponding Author: Mark K. Meiselbach, PhD, Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, 1812 Ashland Ave, Baltimore, MD 21205 (Mark.meiselbach@jhu.edu).

10.1001/jamahealthforum.2026.2843

To access the embargoed study: Visit our JAMA Network Media Center at this link https://media.jamanetwork.com/

Link to the article in your story
We encourage you to link out to this article in your story using the link below. It includes an access token that will give free access to the article for your readers up to one year after publication. (The link will be live after the article publishes and embargo is lifted.)

https://jamanetwork.com/journals/jama-health-forum/fullarticle/10.1001/jamahealthforum.2026.2843?guestAccessKey=83026764-2221-41ec-a465-62e78035dc3b&utm_source=for_the_media&utm_medium=referral&utm_campaign=ftm_links&utm_term=082126

Editor's Note: Please see the article for additional information, including full author list, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

---

Journal

JAMA Health Forum